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Please someone help me out with M9
- Thread starter Henry Goh
- Start date
Mike Hatam
Senior Subscriber Member
Henry,
The body will not remember when you remount that lens (after using a different lens in between). You'll have to re-select the lens in the camera menu each time.
One thing that might help is that it will default to the most recent used choice in the list. So if you only have one un-coded lens, at least each time you mount that lens and switch to "manual" lens selection mode, you'll jump right to the lens choice in the list. But if you have multiple un-coded lenses, and switch between them, this won't save you any time.
The body does not know what aperture you set on the lens. It only knows the maximum aperture for that lens (50 summilux has a different code from 50 summicron).
There is some logic in the camera to approximate the aperture used on a particular image, and that data (approximate aperture setting) is stored in EXIF data. C1 will read and display that data, but at this time, LR2 does not read that data in EXIF.
Hope that helps,
Mike
The body will not remember when you remount that lens (after using a different lens in between). You'll have to re-select the lens in the camera menu each time.
One thing that might help is that it will default to the most recent used choice in the list. So if you only have one un-coded lens, at least each time you mount that lens and switch to "manual" lens selection mode, you'll jump right to the lens choice in the list. But if you have multiple un-coded lenses, and switch between them, this won't save you any time.
The body does not know what aperture you set on the lens. It only knows the maximum aperture for that lens (50 summilux has a different code from 50 summicron).
There is some logic in the camera to approximate the aperture used on a particular image, and that data (approximate aperture setting) is stored in EXIF data. C1 will read and display that data, but at this time, LR2 does not read that data in EXIF.
Hope that helps,
Mike
Mike Hatam
Senior Subscriber Member
If you use Auto, and mount an uncoded lens, the M9 acts the same as the M8 did with an uncoded lens. It doesn't know what lens is on, and makes no in-camera corrections.
I agree about running the focal range corrections afterward - it would be nice if Leica provided a utility that would modify the DNG files after the fact with the focal-range corrections.
I agree about running the focal range corrections afterward - it would be nice if Leica provided a utility that would modify the DNG files after the fact with the focal-range corrections.
Mike Hatam
Senior Subscriber Member
I realize that's how Leica does it today. But it might be possible to do the corrections after-the-fact on the DNG, especially with Adobe recent extensions to the DNG standard.
GrahamWelland
Subscriber & Workshop Member
If you use CornerFix you can create your own profiles for vignette correction for uncoded lenses. This will allow you to post process your raw DNG files and apply the corrections in place.
For the M8, yes, but not for the M9. Carl Bretteville is working on repeating his feat of decoding of the M8 MakerNotes for the M9, but hasn't happened yet.
Sandy
Hi All,
Unless I'm missing something, here is my question. For those that eventually will use both an M8 & M9 (I should be so lucky), and decide for both speed and convienience to leave UVIR filters on all lenses (since the M9 could benifit in some instances from additonal IR filtration).....couldn't Leica have had a M9 menu option where the user specifices they are using a coded lens with UVIR? This way, cyan corners would be prevented especially with wide angle lenses and users of both cameras could leave on their UVIR filters. An alternative to using corner fix in these sorts of circumstances. Just a thought.
Dave (D&A)
Unless I'm missing something, here is my question. For those that eventually will use both an M8 & M9 (I should be so lucky), and decide for both speed and convienience to leave UVIR filters on all lenses (since the M9 could benifit in some instances from additonal IR filtration).....couldn't Leica have had a M9 menu option where the user specifices they are using a coded lens with UVIR? This way, cyan corners would be prevented especially with wide angle lenses and users of both cameras could leave on their UVIR filters. An alternative to using corner fix in these sorts of circumstances. Just a thought.
Dave (D&A)
Hi Mike,
There's a short discussion in the video with the reviewers and Stephan about this. The goal is for the M9 to get it all done in-camera, not using lens corrections or addl. DNG metadata.
I think the above method is "purer" and will keep the digital M system at a higher IQ level than the 4/3rds systems that make extensive use of lens corrections and post capture software tweaks.
The M8 and M9 really don't have true logic to decode the manual aperture selected. The best it can guess is if the user is taking an "average" exposure, then the camera knows the selected ISO, WB, and the shutter for 18% gray. While one reviewer (David Farkas?) said the estimates were within 2/3 +/- EV, Stephan, Sean and others mentioned it was much further off.
Note that David's blog has standard family type photos, while the complete range of photography that M9 users may decide to use will be backlit, night, IR, etc. range, where exposures may deviate wide ranges from ~18% grey.
Just my thoughts, I could be way off here.
There's a short discussion in the video with the reviewers and Stephan about this. The goal is for the M9 to get it all done in-camera, not using lens corrections or addl. DNG metadata.
I think the above method is "purer" and will keep the digital M system at a higher IQ level than the 4/3rds systems that make extensive use of lens corrections and post capture software tweaks.
The M8 and M9 really don't have true logic to decode the manual aperture selected. The best it can guess is if the user is taking an "average" exposure, then the camera knows the selected ISO, WB, and the shutter for 18% gray. While one reviewer (David Farkas?) said the estimates were within 2/3 +/- EV, Stephan, Sean and others mentioned it was much further off.
Note that David's blog has standard family type photos, while the complete range of photography that M9 users may decide to use will be backlit, night, IR, etc. range, where exposures may deviate wide ranges from ~18% grey.
Just my thoughts, I could be way off here.
Hi ampguy,
Appreciate the response. Unfortunately, it's not just "blacks synthetic fabrics thats an issue when using lenses without UVIr filters UVIR filters, but color shifts in green follage and elsewhere, that makes it near impossible for me to use M8 without UVIR filters. So thats not an option (for me). Even getting cyan corners if I used lenses with UVIR filters on an M9 is preferable. Thanks again.
Dave (D&A)
Appreciate the response. Unfortunately, it's not just "blacks synthetic fabrics thats an issue when using lenses without UVIr filters UVIR filters, but color shifts in green follage and elsewhere, that makes it near impossible for me to use M8 without UVIR filters. So thats not an option (for me). Even getting cyan corners if I used lenses with UVIR filters on an M9 is preferable. Thanks again.
Dave (D&A)
Hi Dave,
I shoot a lot of foliage throughout the west coast during all seasons and conditions and haven't seen color shifts, except with mis-processed raw files, and this is without filters. I am aware that foliage reflects colors differently depending on the chlorophyll content, etc., so I don't doubt that you are seeing shifts. I would also expect shifts at some level to even exist between different systems (Canon, Nikon, etc.).
However, with the differences in handling of IR between the M8 and M9, independent of the filters in front of the lens, I'm not sure how you will be able to easily maintain color consistencies between the two systems, if you are currently having color shift issues without UV/IR filters on the M8.
Here is a link to an example of un color-retouched JPGs. There are no color shifts between what the photos show, and the actual colors seen in the foliage, and no UV/IR filters were used. M8 lens detection was set to off - here
I shoot a lot of foliage throughout the west coast during all seasons and conditions and haven't seen color shifts, except with mis-processed raw files, and this is without filters. I am aware that foliage reflects colors differently depending on the chlorophyll content, etc., so I don't doubt that you are seeing shifts. I would also expect shifts at some level to even exist between different systems (Canon, Nikon, etc.).
However, with the differences in handling of IR between the M8 and M9, independent of the filters in front of the lens, I'm not sure how you will be able to easily maintain color consistencies between the two systems, if you are currently having color shift issues without UV/IR filters on the M8.
Here is a link to an example of un color-retouched JPGs. There are no color shifts between what the photos show, and the actual colors seen in the foliage, and no UV/IR filters were used. M8 lens detection was set to off - here
E
Eddyj
Guest
Depends on what lenses you want coded anything above 35mm you need not code..if i am correct
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