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Author Topic: Shooting Color Images with the PhaseOne IQ260 Achromatic  (Read 2145 times)
Brian Hirschfeld
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« on: April 24, 2013, 08:52:45 PM »
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Do at at the DT / PhaseOne World Tour Event in NYC, I had the opportunity to test out something that I am going to be doing further testing on (and which I will report) later this week. That is, using color filters (Red, Green, Blue) on the PhaseOne IQ260 Achromatic and then combining them into the RGB channels of a single image in Photoshop CS6 to render a color image. For this test, Red 25, Green (60?), and Blue 47B filters were used and the white balance was somewhat corrected in CS6. For the rest of the images a hot mirror filter will be used to minimize the effects of the backs IR sensitivity in the images. THe result is still pretty cool and somewhat exhibits the "Harris Shutter Effect' in parts of the image which moved in-between exposures. Not sure if anyone has tried this with their M9M, I know I hadn't but it will work the same...
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ondebanks
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« Reply #1 on: April 24, 2013, 09:10:33 PM »
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That's cool.

Reminiscent of this sort of astro tricolour RGB composite - where the telescope tracked on the moving comet, leaving the background stars to trail:

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Kolor-Pikker
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« Reply #2 on: April 25, 2013, 07:53:14 AM »
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That's very cool actually... the funky colors and after images could world really well for an "art" photo set.
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Stefan.Steib
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« Reply #3 on: April 25, 2013, 10:10:22 AM »
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Hi Brian

I used my leaf DCB-II Life 1995 to create some logo signs and also some ads for my studio/Company (YxyMaster) which was dealing with Colormanagement.

A larger set of images is on Flickr

http://www.flickr.com/photos/hartblei/sets/72157600056349459/

Try to get an old filterwheel from the Leaf backs or the Kodak BW bodies.

Regards
Stefan
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Because Photography is more than Technology and "as we have done this all the time"
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Doug Peterson
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« Reply #4 on: April 25, 2013, 10:37:01 AM »
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That's neat Stefan!

I especially like this one:
http://www.flickr.com/photos/hartblei/451063696/in/set-72157600056349459/

In the middle you can see normal-ish skin color (right ball park anyway) where all three overlap.
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DOUG PETERSON (dep@digitaltransitions.com), Digital Transitions
Dealer for Phase One, Mamiya Leaf, Arca-Swiss, Cambo, Profoto
Office: 877.367.8537
Cell: 740.707.2183
Phase One IQ250 FAQ
Stefan.Steib
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« Reply #5 on: April 25, 2013, 10:55:13 AM »
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Hi Doug

so if Phase needs some more stuff like that, I still have my color wheel stored.
My request for the next Capture one 8: Interface for color wheel rotation !  Smiley

back then I even used my own designed camera for this - see here

https://www.facebook.com/photo.php?fbid=269527973159646&set=a.135465403232571.24057.122001131245665&type=1&theater

We used a Horseman ISS shutter size 3 mounted to the back plate as a shutter system, we could use pentax 6/7, RB/RZ or Hasselblad V lenses.

But - as always- no money for marketing, Sinar doing the business at triple the price........ Undecided

Greetings from Germany

Stefan
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Ed Foster, Jr.
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« Reply #6 on: April 25, 2013, 01:55:27 PM »
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Very nice, Stefan. I too especially enjoyed the middle (profile) image the most.

Ed
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Brian Hirschfeld
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« Reply #7 on: May 18, 2013, 12:55:39 PM »
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Here is a complete article I created on the subject.
http://brianhirschfeldphotography.com/2013/05/17/shooting-color-with-the-phaseone-iq260-achromatic-prototype/
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BobDavid
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« Reply #8 on: May 25, 2013, 07:52:13 AM »
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I used to do R,G,B exposures onto chrome. The results were beautiful. I used Kodak color separation filters.
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BobDavid
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« Reply #9 on: May 25, 2013, 08:07:56 AM »
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Back around 1987, I used a Macintosh 512K computer, a monochrome CCTV camera, and an Imagewriter II dot matrix printer to produce digital color prints. The resolution was 1-bit 512 X 512. The Mac graphics card outputed 1 bit pixels--either black or white. I'd stack the R,G,B,K files so the printer spit out C,Y,M,K. I guess that you could say that this process produced files consisting of 4-bit pixels, once the files were stacked. Looking back, I'd say this was "Fred Flinstone" color technology. I got pretty good at knowing what f/stop to take each of the exposures at. The resolution was so low that I didn't have to worry much about depth-of-field. Also, the CCD sensor in the camera was microscopic, so DOF didn't really matter. I printed the images onto archival paper. They still look great. Frankly, I only see your IQ260 Achromatic tests with R,G,B filters as being an academic execise. If you really want ultra-high resolution color, use a multi-shot system.
« Last Edit: May 25, 2013, 08:13:14 AM by BobDavid » Logged
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