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Author Topic: Capture Integration IQ180 + Schneider Lens Tests  (Read 3295 times)

Doug Peterson

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Capture Integration IQ180 + Schneider Lens Tests
« on: July 01, 2011, 04:06:59 pm »



Capture Integration is pleased to provide the community with downloadable files taken with the IQ180 with the following tech-camera lenses:
- Schneider 28mm Digitar XL
- Schneider 35mm Digitar XL
- Schneider 43mm Digitar XL
- Schneider 60mm Digitar XL
- Rodenstock 70mm HR

The tests are presented as 6-image stitches of around 280mp showing the entire possible range of movement for a Cambo Wide RS. Superimposed on the images is a grid showing the size of a single frame and the increments of 10mm of rise/fall/shift. This will allow viewers to evaluate what range of movements they will be happy with for each lens.

Questions, comments, violent dissent, personal evaluations, and completely off-topic poetic meanderings all strongly encouraged.

Link: Phase One and Schneider Lens Tests

Doug Peterson (e-mail Me)
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Head of Technical Services, Capture Integration
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Doug Peterson

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Re: Capture Integration IQ180 + Schneider Lens Tests
« Reply #1 on: July 01, 2011, 04:17:56 pm »

For anyone new to tech cameras. "Stitching" with a tech camera is different than the pan-and-stitch technique most dSLR users are used to. On a tech camera the lens is stationary and you use move the digital back to capture different parts of the continuous image circle.

This means you don't have to geometrically distort the images together (so pixels aren't being stretched/compressed), you don't have to crop any of the resulting image.

It also greatly increases the effective sensor size which changes how wide any given focal length is, and greatly increases the resolution of the final image.

By stitching a few IQ180 frames you can easily capture 200-400 megapixel images. Getting similar detail from a dSLR would take dozens of overlapping frames and many hours in post-processing software.

We'll be teaching, and using, this technique (from capture to final image) at our NE Landscape (Peak Color) in October.

Doug Peterson (e-mail Me)
__________________

Head of Technical Services, Capture Integration
Phase One Partner of the Year
Leaf, Leica, Cambo, Arca Swiss, Canon, Apple, Profoto, Broncolor, Eizo & More

National: 877.217.9870  |  Cell: 740.707.2183
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Buy Capture One 6 at 10% off

ianallen

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Re: Capture Integration IQ180 + Schneider Lens Tests
« Reply #2 on: October 19, 2011, 01:25:36 am »

This is great thanks for posting!
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Doug Peterson

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Re: Capture Integration IQ180 + Schneider Lens Tests
« Reply #3 on: October 19, 2011, 09:58:53 am »

Actually this test is largely out-dated now. Shortly after this test a new version of Capture One was released with new LCC math that greatly improves on the results seen here. Unfortantely, it's very busy here and re-doing the processing/assembly of this test would take several hours.

Obviously on lenses like the 28XL the areas of the image which are hot-magenta won't be useable regardless of how much LCC was improved because there is simply no green signal reaching that part of the sensor. But for several of these lenses you can now get an additional several mm of real-world use.

Neuffy

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Re: Capture Integration IQ180 + Schneider Lens Tests
« Reply #4 on: October 21, 2011, 12:28:00 pm »

Regardless, thank you. At the very least, for someone "shopping", this shows the minimum achievable with this technique in terms of IQ.
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