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Thread: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

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    Senior Member Steve Hendrix's Avatar
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    CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Today, Phase One released a new firmware for the IQ4 150 that provides multiple benefits. The first is the new feature and re-introduction of Phase One Labs, Dual Exposure +, the second is a number of long overdue improvements and bug fixes.

    There are two articles covering this on Capture Integration's website linked below.


    https://captureintegration.com/phase...dual-exposure/

    https://captureintegration.com/phase...are-7-for-iq4/



    Steve Hendrix/CI
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Steve,

    Thanks for the excellent write up.

    I am extremely happy to see Phase One has worked on the Live View for the 4150 to bring it back to the level of the 3100.

    Paul C
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Sounds like a nice update, however, why does everything take ages?

    Why cant I control exposure with the hard buttons on my Arca? How can it be that the crop bug is still there? Still no adhoc...

    Very mixed feelings here.
    Christopher Hauser
    http://www.chauser.eu

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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    It would have been nice to see the crop bug addressed, for sure.

    Paul C

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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Quote Originally Posted by Christopher View Post
    Sounds like a nice update, however, why does everything take ages?

    Why cant I control exposure with the hard buttons on my Arca? How can it be that the crop bug is still there? Still no adhoc...

    Very mixed feelings here.

    We agree - and my saying "long overdue" was really putting it mildly. Phase One has a history - like nearly all camera manufacturers - of at times needing to "fix" some things after the launch of a new product. However, the amount of time it took for the fixes containined in firware 7 was well beyond acceptable. And why they have not eliminated the crop frame in this release is beyond me. The hard button control for exposure is more of a feature related to the XT feature additions, rather than a bug fix, , so I don't hold that to the same degree of urgency. Still, would be nice if it was here as well.


    Steve Hendrix/CI
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Great improvement for live view. Haven't tried dual exposure yet but am confident it will perform as Steve has posted.

    Victor B

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    Senior Member Greg Haag's Avatar
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Thank for the link to the articles Steve!

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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Definitely a great step in the right direction! Did a quick test. Live view is definitely better (thank you Paul and Victor for beating that drum).

    The the quick test I did looks like DE+ results are good even compared with 10-image frame averaging. Here is the hotel room scene, SOOC (White Balanced) and +4 Exposure with +100 shadows:



    and compared to 5/10 frame average:
    3223 standard 100 ISO 0.8 sec
    3224 DE+ 100 ISO 0.8 sec
    3225 5-image FA 100 ISO 0.8 sec
    3226 10-image FA 100 ISO 0.8 sec



    Dave
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Quote Originally Posted by Steve Hendrix View Post
    We agree - and my saying "long overdue" was really putting it mildly. Phase One has a history - like nearly all camera manufacturers - of at times needing to "fix" some things after the launch of a new product. However, the amount of time it took for the fixes containined in firware 7 was well beyond acceptable. And why they have not eliminated the crop frame in this release is beyond me. The hard button control for exposure is more of a feature related to the XT feature additions, rather than a bug fix, , so I don't hold that to the same degree of urgency. Still, would be nice if it was here as well.


    Steve Hendrix/CI
    I get its not a bug, but why on earth. An I Control use but not exposure? It really shouldnt take longer then an hour to implant and test it. Its actually that simple. When I actually talk to real IT people about the IQ4 they just start laughing and cant believe how long its taking. Most of the time the remarks is, they probably have one underpayed or very old programmer working on it....
    Christopher Hauser
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    The Dual exposure feature for me is a huge advantage. This ability is what I had hoped to see from Frame Averaging.

    The write up from CI is very good on the explanation of the tool.

    It's tragic for me that Phase One can't open up a bit with a NDA, and allow for photographers to have a heads up on features like this, as for me this answers a lot of the needs I wanted. The fact that Phase One never publicly admitted to the Live View issues is a disappointment for me, as I have been complaining about this from day one of ownership and with this firmware the results are just what I had with the 3100, that's really all I had asked for, but never got any forward message that Phase even realized that the issue existed.

    But thanks again for this update.

    Paul C
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    I did notice when shooting in Dual Exposure + mode, the image format that shows in C1 is "IIQ L 16bit, DualExposure+". No "Ex" in the format when shooting DualExposure+. Ex is there for both std and Frame Averaging. That might be by design, IDK. And, since the results are quite impressive I am not sure it matters.

    Dave
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Good morning

    I have a question.

    On the release notes under "Know Issues" it says Max ISO is limited to 400 on IQ4 Achromatic.

    Is that only for the DUAL EXPOSURE + or is that for evrything no matter what after installing the new software?

    Thanks

    Phil

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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Quote Originally Posted by alajuela View Post
    Good morning

    I have a question.

    On the release notes under "Know Issues" it says • Max ISO is limited to 400 on IQ4 Achromatic.

    Is that only for the DUAL EXPOSURE + or is that for evrything no matter what after installing the new software?

    Thanks

    Phil

    Phil, that is a typo. It is Max 400 ISO for all IQ4, not just Achromatic. It’s an error from the PR from Phase One.


    Steve Hendrix/CI
    Last edited by Steve Hendrix; 3rd March 2020 at 06:40.
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Quote Originally Posted by Christopher View Post
    I get it’s not a bug, but why on earth. An I Control use but not exposure? It really shouldn’t take longer then an hour to implant and test it. It’s actually that simple. When I actually talk to real IT people about the IQ4 they just start laughing and can’t believe how long it’s taking. Most of the time the remarks is, they probably have one underpayed or very old programmer working on it....
    Remember the rule, as related by real IT people. Take your estimate, multiply by three, add one, and convert to the next higher units. A one week project will take four months.
    Last edited by MGrayson; 3rd March 2020 at 06:45.

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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Quote Originally Posted by Steve Hendrix View Post
    Phil, that is a typo. It is Max 400 ISO for all IQ4, not just Achromatic. Its an error from the PR from Phase One. Well edit that to prevent confusion.


    Steve Hendrix/CI
    Hi Steve - the 400 Max iso only when using Dual Exposure+?

    No iso limitation in "normal" use, ie frame averaging, bracketing, single shot, or time laspe?

    Thanks

    Phil

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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Quote Originally Posted by alajuela View Post
    Hi Steve - the 400 Max iso only when using Dual Exposure+?

    No iso limitation in "normal" use, ie frame averaging, bracketing, single shot, or time laspe?

    Thanks

    Phil

    This only when using the Dual Exposure + feature.

    Keep in mind that this in the "Phase One Lab" environment, and is essentially a beta. Therefore, some elements of the feature could change before it is determined to be finalized.


    Steve Hendrix/CI
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Quote Originally Posted by Steve Hendrix View Post
    This only when using the Dual Exposure + feature.

    Keep in mind that this in the "Phase One Lab" environment, and is essentially a beta. Therefore, some elements of the feature could change before it is determined to be finalized.


    Steve Hendrix/CI
    Thanks so much Steve



    One other thing, can you turn the beta off? In other words go in and out of that software environment?

    Best

    Phil

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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Quote Originally Posted by alajuela View Post
    Thanks so much Steve



    One other thing, can you turn the beta off? In other words go in and out of that software environment?

    Best

    Phil
    Yes, just go into the camera menu through the digital back to switch Lab on or off.
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Quote Originally Posted by ASTeamwork View Post
    Yes, just go into the camera menu through the digital back to switch Lab on or off.
    Thank you Al!!

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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    FWIW.... I have tried Dual Exposure comparing it to a single shot of the same scene and with 100% shadows increase and 2.5 push in exposure there is a dramatic difference in noise when viewing at 100% pixels. The difference also shows a clearly (no pun intended) improved detail level which just jumps out when comparing side by side.

    I think I can get rid of my Lee GND filters....

    Victor B
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Quote Originally Posted by vjbelle View Post
    FWIW.... I have tried Dual Exposure comparing it to a single shot of the same scene and with 100% shadows increase and 2.5 push in exposure there is a dramatic difference in noise when viewing at 100% pixels. The difference also shows a clearly (no pun intended) improved detail level which just jumps out when comparing side by side.

    I think I can get rid of my Lee GND filters....

    Victor B
    I got rid of all of mine with the IQ4150. Only ones I kept were 2 CPL. I almost bought the WineCountry 150mm contraption and I am so glad I didn't as it would have taken a lot of space in my bag.

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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Quote Originally Posted by Steve Hendrix View Post
    This only when using the Dual Exposure + feature.

    Keep in mind that this in the "Phase One Lab" environment, and is essentially a beta. Therefore, some elements of the feature could change before it is determined to be finalized.


    Steve Hendrix/CI
    Well, the whole back is Beta... Maybe even Alpha considering the issues we seen for the past 18 months.

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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    I just ran a quick test pointed an LED night light and to be honest I don't see much difference between DualExposure+ and a straight frame. However a 30 second frame average shows dramatic improvement. In fact there's so little difference that I had to check the file metadata to confirm that it was the DualExposure+ frame.

    I also noticed that the frame average one is the only one that looks correct in C1. Both the straight frame and the DualExposure+ frames show significant artifacts in C1 that don't show up in exported PSDs.

    See the overall frame SOC and 100% samples of the three conditions. Granted this is pushing things a lot.
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Quote Originally Posted by Craig Stocks View Post
    I just ran a quick test pointed an LED night light and to be honest I don't see much difference between DualExposure+ and a straight frame. However a 30 second frame average shows dramatic improvement. In fact there's so little difference that I had to check the file metadata to confirm that it was the DualExposure+ frame.

    I also noticed that the frame average one is the only one that looks correct in C1. Both the straight frame and the DualExposure+ frames show significant artifacts in C1 that don't show up in exported PSDs.

    See the overall frame SOC and 100% samples of the three conditions. Granted this is pushing things a lot.

    In the Read Me from our article, it does state there will be artifacts that show in Capture One with pushed shadows of Dual EXP + files until you zoom in/process the file.

    I see a significant advantage in the Dual EXP+ files in the shaodws over the single shot file. The Frame Averaged takes that further - if you have the time for the frame averaged shot. If you don't, then that is exactly what Dual EXP+ is intended for.


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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Craig.... although your post shows a clear advantage for FA for your taking conditions those conditions aren't reflective of how I would or intend to use Dual Exposure. I expect that all of my images will be taken outdoors with the intent of finally getting rid of my NGD filters - which means that I would be maybe pushing 2 stops and or taking shadows way up with the addition of tweaking extreme highlight in post. So far with my limited experience with this if I don't want to have a blown sky I can expose for the sky and manage the image in post with a 2 exposure push (+-), a little tweaking of highlights and shadows and this completely replaces my NGD filters which is a welcome improvement for me. It is a feature I'm sure I'll use fairly often and to me is much more useful than FA.

    That said..... your post is very welcome and an eye opener for anyone who has even remotely not realized the benefits of FA...

    Victor B

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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Maybe what's most surprising (to me anyway) is just how good the 4150 sensor is. Just for fun I did a comparison using my Sony a7r2 using the same angle of view. I have the Smooth Reflection app on the camera so I was also able to do an in-camera frame average of 48 frames.

    I didn't make any attempt to compensate for the difference in resolution. I frame my photos based on an angle of view and I crop and print them based on the composition I want. The intent was to compare the Sony in the same shooting conditions to produce the same resulting image.

    The results were pretty much what you'd expect, not nearly as good as the IQ4150.

    A couple other observations too. The Sony was not nearly as easy to focus in live view as the IQ4150 - that surprised me. Also, my workflow was much simpler with the IQ4150 since I have it tethered via Ethernet (and powered with POE) so the frames go straight to my computer in an adjacent room. With the Sony I had to shoot to a card and then walk the card into the next room to import it into C1 (I know, it's absolutely stone age technology).
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Apologies if this has already been mentioned.

    Both FA and DE+ are techniques available to anyone with any camera. The advantage of FA in-camera is the huge reduction in storage and processing vs doing it in post. But blending two exposures purely for shadow noise is an old trick. Given that the shadow exposure takes 8 times as long as the highlight exposure, there isn't a huge speed advantage having them both read off the same exposure. I'm not discounting the advantage of having this done in-camera; that is a Good Thing. But I'm surprised, with all the focus on DR in recent years, that the two exposure method hasn't seen more ... exposure.

    Well, once again, theory says one thing, practice says another. I hope these techniques spread to other manufacturers. Kudos (again) to Phase One.

    Matt
    Last edited by MGrayson; 3rd March 2020 at 14:55.
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Ok Phase One, you may have slightly redeemed yourself after teasergate ...

    This firmware update looks like itll finally add something for non-XT users. The dual exposure+, like frame averaging, make me happier about the IQ4150 investment. Time to flash the firmware!
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Quote Originally Posted by GrahamWelland View Post
    Ok Phase One, you may have slightly redeemed yourself after teasergate ...

    This firmware update looks like itll finally add something for non-XT users. The dual exposure+, like frame averaging, make me happier about the IQ4150 investment. Time to flash the firmware!
    Other than the fact developing these really nice and advance features is diverting resources from fixing what should have been there when it was shipped or a couple of months later.

    Agreed it looks very promising, with this and frame averaging (which I do like for seascapes) I am reconsidering which camera to take to Hawaii.
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    My travel camera these days is my Fuji GFX100 vs my Phase One gear. I love shooting with IQ4150 but the XF is too heavy and the Actus - actually nothing wrong with the Actus if the new LV focusing works.
    Remember: adventure before dementia!

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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Live view focusing works just like the 3100....

    Victor B

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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    It would be nice if P1 would allow non-IQ4 users access to this directly inside C1. I mean it's not dependent on the actual hardware of the IQ4 since it's basically an implementation of Guillermo Luijk's 'Zero Noise' technique from thirteen years ago - so all a user would need to do is take two images 4 stops apart (one for highlights, one 4 stops past the highlights exposure), select them in C1 and hit the 'zero noise' button (if there was one). Luijk found 3 images to be optimal, but sensor technology has come on since then so I guess you can achieve similar results with two these days (but it would be nice to have an option inside C1 to select 2 or 3 frames so it would work with older P1 backs). Until then, this is the way to do it in PS for all us other P1 users (remember us P1? Nope, didn't think so): http://jtrujillo.net/qpix/
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Quote Originally Posted by f8orbust View Post
    It would be nice if P1 would allow non-IQ4 users access to this directly inside C1. I mean it's not dependent on the actual hardware of the IQ4 since it's basically an implementation of Guillermo Luijk's 'Zero Noise' technique from thirteen years ago - so all a user would need to do is take two images 4 stops apart (one for highlights, one 4 stops past the highlights exposure), select them in C1 and hit the 'zero noise' button (if there was one). Luijk found 3 images to be optimal, but sensor technology has come on since then so I guess you can achieve similar results with two these days (but it would be nice to have an option inside C1 to select 2 or 3 frames so it would work with older P1 backs). Until then, this is the way to do it in PS for all us other P1 users (remember us P1? Nope, didn't think so): http://jtrujillo.net/qpix/
    Thank you for posting the link!

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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Quote Originally Posted by MGrayson View Post
    Apologies if this has already been mentioned.

    Both FA and DE+ are techniques available to anyone with any camera. The advantage of FA in-camera is the huge reduction in storage and processing vs doing it in post. But blending two exposures purely for shadow noise is an old trick. Given that the shadow exposure takes 8 times as long as the highlight exposure, there isn't a huge speed advantage having them both read off the same exposure. I'm not discounting the advantage of having this done in-camera; that is a Good Thing. But I'm surprised, with all the focus on DR in recent years, that the two exposure method hasn't seen more ... exposure.

    Well, once again, theory says one thing, practice says another. I hope these techniques spread to other manufacturers. Kudos (again) to Phase One.

    Matt
    I can confirm this. Since I started using Leica S in 2016, my standard procedure for extreme lighting conditions has been to do an exposure that is the best possible for a single image, and then 2 stops plus and 2 stops minus. Then, I merge all three frames.

    I just did a test on an image that I had completed with three frames, using only two frames, excluding the middle frame. The result is virtually indistinguishable from the the 3-frame merge.

    I agree with Matt, that other camera manufacturers should work on doing the the 2-frame averaging in-camera. I expect that a processor change would be probable for anything more than two frames. I do not know if patents come into play with this.

    Something for which to compliment Phase One in the midst of this dissatisfaction.
    Best regards,
    Jesse
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Has anyone tried to use the dual exposure mode with a remote release? Bob or other?

    FA will not work correctly unless you fire it from the shutter button on the LCD. With a tech camera. Not sure about CF shutter.

    Paul C

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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Its awesome to see Phase innovating and making the back better but this known issue:

    "ES exposures on Technical Camera can have a top band of digital vignetting"

    makes this a non-starter for me as all my images are shot on a tech camera with ES. Anyone else in the same boat? Really frustrating...
    Aravind
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    Senior Member Steve Hendrix's Avatar
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Quote Originally Posted by Paul2660 View Post
    Has anyone tried to use the dual exposure mode with a remote release? Bob or other?

    FA will not work correctly unless you fire it from the shutter button on the LCD. With a tech camera. Not sure about CF shutter.

    Paul C

    So far, it seems to be working normally with the remote release when using Dual Exposure +.

    Also, the delay between when you can take another Dual Exposure + shot (you can take another normal shot anytime), is relative to the shutter speed of the exposure. For example, 1/60th of a second show 1/8 second delay before next DE+ capture is allowed, while a .9 second exposure (the max), shows a 7 second delay.


    Steve Hendrix/CI
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    Member Mexecutioner's Avatar
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    I noticed the responsiveness and accuracy of my IQ4150 screen improved after this upgrade. I used to struggle sometimes clicking on the right spot, particularly at the left and right edges of the screen, so I welcome this improvement.

    Liveview is much much better now, that's also great to have back.
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    Senior Member alajuela's Avatar
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Hi

    I wonder if they will put a little icon on the shot (preview image) in C1 to note the shot was Dual Exposure + . Now you have to look in the info tab

    Thanks

    Phil

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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Quote Originally Posted by alajuela View Post
    Hi

    I wonder if they will put a little icon on the shot (preview image) in C1 to note the shot was Dual Exposure + . Now you have to look in the info tab

    Thanks

    Phil
    I have yet to see a small icon indicating FA. I would like to see that first as it should be easy to implement.

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    Senior Member Steve Hendrix's Avatar
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Click image for larger version. 

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    Quote Originally Posted by algrove View Post
    I have yet to see a small icon indicating FA. I would like to see that first as it should be easy to implement.

    There is. But not yet for DE+.


    Steve Hendrix/CI
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    Member Dante Alighieri's Avatar
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Thank you for your contributions here, Steve.

    You're really just a swell guy.

    And no matter what that Dave Gallagher guy says, Dante likes you.

    --Dante
    "Abandon Hope All Ye Who Enter Here."

    Coming soon: "The Devil's Workshop"---Medium Format Digital Photography Workshops
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Quote Originally Posted by Steve Hendrix View Post
    Click image for larger version. 

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    There is. But not yet for DE+.


    Steve Hendrix/CI
    Thanks Steve.
    I must have a FW that does not have that icon in it.

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    Subscriber & Workshop Member GrahamWelland's Avatar
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Btw, as many of us have said, we care less about pixel resolution vs DR. Ill take more DR every day vs pixel resolution.
    Remember: adventure before dementia!

    The World is a book, and those that do not travel read only one page ...
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    We sure don't need more pixels unless Sony can figure out a way to do it without making the pixels smaller. More DR, color fidelity, noise control and computational capabilities would be much more beneficial from MPOV.

    Victor B
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Quote Originally Posted by vjbelle View Post
    We sure don't need more pixels unless Sony can figure out a way to do it without making the pixels smaller. More DR, color fidelity, noise control and computational capabilities would be much more beneficial from MPOV.

    Victor B
    +1 on that

    and don’t tie it to the XT!
    Remember: adventure before dementia!

    The World is a book, and those that do not travel read only one page ...
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    Senior Member dchew's Avatar
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    One thing I learned shooting over the weekend: When in DE+ mode, the back switches from EX to "DE+" format. If you shut off the back while on the screen in DE+ mode, it will kick out of your EX file selection, and revert to IIQL 16bit (no EX).

    I created a case yesterday. Jon already responded they are aware and working on it.

    Dave
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    Workshop Member Wayne Fox's Avatar
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Quote Originally Posted by GrahamWelland View Post
    Btw, as many of us have said, we care less about pixel resolution vs DR. Ill take more DR every day vs pixel resolution.
    Quote Originally Posted by vjbelle View Post
    More DR

    Victor B
    interesting perspective. So much dynamic range now ... I haven't shot an HDR in years.

    As far as making the sensels smaller, I think they could be made a lot smaller ... but with a different strategy. Micro LED displays are the current rave, possibly to eliminate OLED at some future time. What about a micro-LED sensor ... where 4 micro sensels are binned to make 1. Seems pixel binning can be powerful in both dynamic range and color fidelity, and even in perceived resolution because of a reduction of artifacts, since such as sensor wouldn't require de-mosaicing. Not sure if it's possible and to what level ... and maybe there's even a better technology out there that will eliminate the need of filter arrays and allow recording each pixel accurately.

    random thoughts from a sleepy mind ... I need to go to bed
    wayne
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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    I have noticed one issue:

    When you push up dark shadows (basically deep blacks), you may see a slight color change, in my case areas that are brown may take on a slight green cast. I have realized also you have to view the image at 100% to really see the true file.

    This only seems to happen with areas of a file that were basically black or close to it, so I realize I am pushing up the file an extreme amount.

    For my testing I have always have the back's WB set to Landscape. (I can't remember if it's Landscape or outdoors).

    Paul C

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    Re: CI Impressions of Phase One Dual Exposure + and New Firmware 7 for IQ4

    Paul,
    If you mean Daylight, that is what I do too.
    Last edited by dchew; 12th March 2020 at 04:20.
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