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Thread: Fun with MF images

  1. #25351
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    Re: Fun with MF images

    Afternoon

    It's been a difficult few days here in Iraq, extremely sad events in Mosul yesterday. It's Nawroz, the celebration of the new year for Kurdish and Iranian people, a lot of people out enjoying the sun, families having picnics everywhere which makes the loss all the more tragic.

    Just a couple of grab shots from a drive up in to the mountains today, no tripod or filters so not as good as they should be.



    http://matrichardson.com/
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  2. #25352
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    Re: Fun with MF images

    GFX50r + GF63mm

    ACROS-Red

    -10 degrees

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  3. #25353
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    Re: Fun with MF images

    GFX50r + GF63mm

    ACROS-Red

    -10 degrees

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    Re: Fun with MF images

    Quote Originally Posted by biglouis View Post
    This was real fun.
    GFX50S+120mm
    Louis, It's this indicator that sends pangs of sweet sadness to my heart.
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  5. #25355
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    Re: Fun with MF images

    This is my second composition of sunflowers in snow. It is a bit cleaner and more organized compared to the last one.
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    www.friedmanphoto.com
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  6. #25356
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    Re: Fun with MF images

    Yes, you can put a medium format back on a telescope. The Orion Nebula imaged through a SkyWatcher Quatro 200 (800 mm focal length, f/3.9) with an IQ4150 on a Cambo body using a Canon lens mount. 15 frames (averaged) at ISO 1600 for 30 seconds each.
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  7. #25357
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    Re: Fun with MF images

    Craig, beautiful. And the diffraction spikes from your secondary spider are just wonderful. Maybe I will start taping sticks to the front of my lenses when I photograph at night.
    Will

    http://www.hakusancreation.com
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  8. #25358
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    Re: Fun with MF images

    Amazing Graig!
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    Re: Fun with MF images

    Rigi Kulm, Switzerland
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    Leica S, APO-Elmar-S 180
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  10. #25360
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    Re: Fun with MF images

    Tangled Trees

    Kirk

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    GFX50s, 32-64, stacked
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  11. #25361
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    Re: Fun with MF images

    Quote Originally Posted by Craig Stocks View Post
    Yes, you can put a medium format back on a telescope. The Orion Nebula imaged through a SkyWatcher Quatro 200 (800 mm focal length, f/3.9) with an IQ4150 on a Cambo body using a Canon lens mount. 15 frames (averaged) at ISO 1600 for 30 seconds each.
    Wow!
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    Re: Fun with MF images

    Tomatoes (S007 w S120)
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  13. #25363
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    Re: Fun with MF images

    Quote Originally Posted by gandolfi View Post
    Louis, It's this indicator that sends pangs of sweet sadness to my heart.
    Wow as a Brit I miss the quaintness of those old indicators!
    Remember: adventure before dementia!

    The World is a book, and those that do not travel read only one page ...

  14. #25364
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    Re: Fun with MF images

    I call this one Redhead Rising - a shot from my shoot at a large seasonal waterfall on the Navajo Nation fed by snowmelt in northern Arizona's mountains.
    GFX50S, 100-200mm @ 186mm, ISO 200, f/6.4, 2s

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    E.J. Peiker
    www.EJPhoto.com
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    Re: Fun with MF images

    La Baule


    L_001220 by jean-luc cochy, sur Flickr


    L_001222 by jean-luc cochy, sur Flickr


    L_001218 by jean-luc cochy, sur Flickr


    Mamiya 645 AFDII Leaf aptus 65 and 55 mm .
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  16. #25366
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    Re: Fun with MF images

    Lake Huron shoreline (a month ago). IQ4-150, SK 55 mm.

    Bill CB

    www.billcaulfeild-browne.ca
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    Re: Fun with MF images

    "Appalachia Life in the Mountains" near Humpback Rocks & Nellysford, Virginia.
    Pentax 645Z; FA 45-85mm

    Dave (D&A)
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    Re: Fun with MF images

    The fun is in the small details of this one at the Altamonte Pass wind turbine farm:
    P1 XF | Trichro | Mamiya 300mm | f/4.5 | 1/20 | ISO 50
    Last edited by drunkenspyder; 26th March 2019 at 09:02.
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    Re: Fun with MF images

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    Hy6 Mod 2 - 80/2.8 AFD Xenotar - Leaf AFi II 7

    Need to sell my bike, so obviously MFD was necessary for Craigslist.
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    Re: Fun with MF images

    Fallen tree in our local park ...
    4 images stitched
    P1 645 DF with 80/2.8
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    P1 645DF with P30+/E-M1/GH2/G1 Full Spectrum & lots of lenses
    http://www.flickr.com/photos/f6cvalk...th/9226689839/
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  21. #25371
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    Re: Fun with MF images

    Wow. That is a cool image. Congrats.

    Quote Originally Posted by f6cvalkyrie View Post
    Fallen tree in our local park ...
    4 images stitched
    P1 645 DF with 80/2.8
    www.friedmanphoto.com
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  22. #25372
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    Re: Fun with MF images

    GFX50r + GF63mm

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  23. #25373
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    Re: Fun with MF images

    GFX50r + GF63mm

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    Re: Fun with MF images

    Pentax 645Z Pentax 67 55-110
    Blangy-sur-Bresle

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  25. #25375
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    Re: Fun with MF images

    Ghislain, very nice story here in the Hassy newsletter to go along with the images you posted before. Very nice work!
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  26. #25376
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    Re: Fun with MF images

    A few from a recent photo shoot. XF / IQ4150.
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  27. #25377
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    Re: Fun with MF images

    This image was taken with a Horseman panoramic film camera. Velvia 50 of course.

    This is early dawn light in the autumn time. There is a mix of aspen, maples, and oak trees in this scene.
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  28. #25378
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    Re: Fun with MF images

    Quote Originally Posted by stevenfr View Post
    This image was taken with a Horseman panoramic film camera. Velvia 50 of course.

    This is early dawn light in the autumn time. There is a mix of aspen, maples, and oak trees in this scene.
    Ah Velvia, my all time fave. Lovely Steve.
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  29. #25379
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    Re: Fun with MF images

    Thank you. I agree Velvia is a beautiful film. Although, 6 stops of DR was pretty limited compared to what we have today with our MF digital cameras. If I remember correctly, when I first printed this image the reds were out of gamut for my inkset.

    Quote Originally Posted by drunkenspyder View Post
    Ah Velvia, my all time fave. Lovely Steve.

  30. #25380
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    Re: Fun with MF images

    Quote Originally Posted by stevenfr View Post
    Thank you. I agree Velvia is a beautiful film. Although, 6 stops of DR was pretty limited compared to what we have today with our MF digital cameras. If I remember correctly, when I first printed this image the reds were out of gamut for my inkset.
    Right. I spent a lot of time in the Latin American rain forests with my Mamiya 645 and Rollei 6003 and 6008. Yes, not the DR we have today, and you sure weren't pulling up a whole lot out of shadows, but shadows were a big part of what made the forest feel the way it did.
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    Re: Fun with MF images

    Mono Lake NYD 2018

    P1 XF | Trichro | S-K 120M | f/16 | 5s | ISO 35 | 7-image stitch
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    Re: Fun with MF images

    GFX50r + GF63mm

    "Traditional Vs Modern"

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    Re: Fun with MF images

    GFX50r + GF63mm

    "Old Vs New"

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  34. #25384
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    Re: Fun with MF images

    This is a composite image done in three parts. The background shows the three stars of Orion's belt, the two insets are telescope views of the Flame Nebula and the Orion Nebula aligned with the star field.

    All done with the IQ4150. The background was done with an XF with Phase One 120 MF macro mounted on a SkyWatcher tacking mount The two telescope views were done with the IQ4150 attached to a Cambo tech camera with a Canon lens mount attached to a SkyWatcher Quattro 200 telescope.

    Be sure to zoom in to appreciate the details. This copy is reduced to 2000 pixels on the long side. The original is 35,000 pixels tall.

    The IQ4150 has both good and bad points for astrophotography. The live view does not work well to focus and you need to find a very bright star. The bigger issue is that it appears to have an unnatural sensitivity to UV which distorts the colors. (Reflection nebulas should photograph as blue but are rendered as pink by the IQ4150.)
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  35. #25385
    Senior Member drunkenspyder's Avatar
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    Re: Fun with MF images

    Wonderful Craig! Hard to complain about pink in nebulae though. Just sayin’.

    Quote Originally Posted by Craig Stocks View Post
    This is a composite image done in three parts. The background shows the three stars of Orion's belt, the two insets are telescope views of the Flame Nebula and the Orion Nebula aligned with the star field.

    All done with the IQ4150. The background was done with an XF with Phase One 120 MF macro mounted on a SkyWatcher tacking mount The two telescope views were done with the IQ4150 attached to a Cambo tech camera with a Canon lens mount attached to a SkyWatcher Quattro 200 telescope.

    Be sure to zoom in to appreciate the details. This copy is reduced to 2000 pixels on the long side. The original is 35,000 pixels tall.

    The IQ4150 has both good and bad points for astrophotography. The live view does not work well to focus and you need to find a very bright star. The bigger issue is that it appears to have an unnatural sensitivity to UV which distorts the colors. (Reflection nebulas should photograph as blue but are rendered as pink by the IQ4150.)
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  36. #25386
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    Re: Fun with MF images

    Quote Originally Posted by drunkenspyder View Post
    Wonderful Craig! Hard to complain about pink in nebulae though. Just sayin’.
    It does become a problem with astronomical accuracy. Reflection nebulas are created when bright hot (usually blue) stars reflect from dust clouds and should show up as blue. Emission nebulas are created when gases glow and fluoresce from the radiation given off by stars and normally glow red. When reflection nebulas photograph as red instead of blue it distorts reality.

    The IQ4150's sensitivity to UV also distorts colors if you use a black light. Rather than recording as light blue it photographs as hot pink.

  37. #25387
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    Re: Fun with MF images

    Quote Originally Posted by Craig Stocks View Post
    It does become a problem with astronomical accuracy. Reflection nebulas are created when bright hot (usually blue) stars reflect from dust clouds and should show up as blue. Emission nebulas are created when gases glow and fluoresce from the radiation given off by stars and normally glow red. When reflection nebulas photograph as red instead of blue it distorts reality.

    The IQ4150's sensitivity to UV also distorts colors if you use a black light. Rather than recording as light blue it photographs as hot pink.
    Hmmm... distorted reality has been a problem all my life.

    Seriously, though, your knowledge of such things is astounding! We appreciate your gracious sharing of these outstanding images.
    Best regards,
    Dave (GT)
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  38. #25388
    Senior Member drunkenspyder's Avatar
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    Re: Fun with MF images

    Quote Originally Posted by Craig Stocks View Post
    It does become a problem with astronomical accuracy. Reflection nebulas are created when bright hot (usually blue) stars reflect from dust clouds and should show up as blue. Emission nebulas are created when gases glow and fluoresce from the radiation given off by stars and normally glow red. When reflection nebulas photograph as red instead of blue it distorts reality.

    The IQ4150's sensitivity to UV also distorts colors if you use a black light. Rather than recording as light blue it photographs as hot pink.
    Totally get it. I saw that when using UV in Africa to watch out for the wrong kind of ground critters. I was just having fun, because the pink in some DSOs can appear so beautiful.

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    Re: Fun with MF images

    GFX50r + GF63mm
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    Re: Fun with MF images

    GFX50r + GF63mm
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  41. #25391
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    Re: Fun with MF images

    GFX50r + GF63mm
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    Re: Fun with MF images

    GFX50r + GF63mm
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    Re: Fun with MF images

    Another astrophoto taken with the IQ4150, this time showing the Flame Nebula and the Horsehead Nebula. The bright star in the center is the left-most star in Orion's belt.

    I feel like the IQ4150 offers some real advantages for astrophotography. The general astro workflow is to take lots of individual frames and stack them to effectively combine the exposure time. It's not unusual to have multiple hours worth of 4 minute exposures to create a final image.

    Sadly, I'm not that motivated. This image is made from around 15 30-second exposures combined in Photoshop. (I generally limit my exposures to 30 seconds because my telescope mount doesn't track all that well and I don't want to add the complexity of computerized autoguiding.) As you might expect the individual frames are quite dark so you need to "stretch" the image through a series of curves and levels adjustments. This is where the IQ data really seems to help, it gives me a lot of latitude to stretch the image to bring out subtle details. The tradeoff is the IQ's apparent heightened sensitivity to UV light which really throws off some of the colors and requires additional processing to correct.

    As a point of comparison I've also included one of the frames with minimal processing so you can see how much the image data is stretched.
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  44. #25394
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    Re: Fun with MF images

    Quote Originally Posted by Craig Stocks View Post
    It does become a problem with astronomical accuracy. Reflection nebulas are created when bright hot (usually blue) stars reflect from dust clouds and should show up as blue. Emission nebulas are created when gases glow and fluoresce from the radiation given off by stars and normally glow red. When reflection nebulas photograph as red instead of blue it distorts reality.

    The IQ4150's sensitivity to UV also distorts colors if you use a black light. Rather than recording as light blue it photographs as hot pink.
    Can't you put a UV filter in the optical path?

    Joel

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    Re: Fun with MF images

    Quote Originally Posted by JoelM View Post
    Can't you put a UV filter in the optical path?

    Joel
    I tried a UV filter and it didn't have much if any effect.

  46. #25396
    Senior Member ejpeiker's Avatar
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    Re: Fun with MF images

    Quote Originally Posted by JoelM View Post
    Can't you put a UV filter in the optical path?

    Joel
    Sensor cover on a color back already has a UV (and IR) cut-off in it so adding a UV filter to the lens has no real effect other than adding two more glass/air interfaces.
    E.J. Peiker
    www.EJPhoto.com
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  47. #25397
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    Re: Fun with MF images

    Here's a comparison between the IQ4150 (hot pink colors) and a Sony a7r2 (blue colors). The target was illuminated on the left side by a roughly daylight balanced LED and on the right by a black light. I positioned a piece of foamcore in the middle to separate the two sides so it could be photographed in one exposure. I set the white balance on the left side (which had very little effect). The cord draped across was included because it is pretty reactive to a black light.

    As you can see the IQ4150 red channel is much more sensitive to the UV from a black light. Obviously I can adjust the pink to be blue but that shifts other colors along with it.
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  48. #25398
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    Re: Fun with MF images

    The Orchard in snow shot from some distance.
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    www.friedmanphoto.com
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  49. #25399
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    Re: Fun with MF images

    Inspired by a visit with my wife last week to the Albertina gallery in Vienna, where I saw some hyper-realistic flower paintings by the 19th century Austrian painter Ferdinand Georg Waldmüller. Bought some roses at my local florist a few days later. Had an idle evening today, so unpacked my Mamiya RZ67 ProIID with an IQ280 and two Rotolights, to take this picture. Lens Mamiya APO Sekor Z 250mm f4.5

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  50. #25400
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    Re: Fun with MF images

    Sunset over Redcar. GFX50S + GF23mm:

    The last of the light by Mark, on Flickr
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