Severe dynamic range images - can they be done with Foveon ?

Started May 14, 2012 | Discussions
TRIODEROB
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Severe dynamic range images - can they be done with Foveon ?
May 14, 2012

here is an example - this is a scan of a 35mm ektra 100 film image I took over the weekend.

black sub with deep shadow and the sun setting behind it - very nasty dynamic range to handle.

could you guys show some high dynamic range foveon images and talk about how you set the camera exposure or any other technical tips ?

TRIODEROB
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Re: Severe dynamic range images - can they be done with Foveon ?
In reply to TRIODEROB, May 14, 2012

another example

notice the mans shoes and white bag - total sun vs shadow

how to handle this with the Sigma SLR ?

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TRIODEROB
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Re: Severe dynamic range images - can they be done with Foveon ?
In reply to TRIODEROB, May 14, 2012

FINAL EXAMPLE

here the problem for me is how to expose shot to keep white bag from blowing out yet keep leg shadow from rolling off left side of histogram ???

(again ektar 100 and 3 meg medium rez scan)

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rainbyrd
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Re: Severe dynamic range images - can they be done with Foveon ?
In reply to TRIODEROB, May 14, 2012

TRIODEROB wrote:

another example

notice the mans shoes and white bag - total sun vs shadow

how to handle this with the Sigma SLR ?

would never work with sd1.probably with sd10.never with canon, but shurely with fuji s5 and d3x/d800.

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gbainbridge
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Re: Severe dynamic range images - can they be done with Foveon ?
In reply to TRIODEROB, May 14, 2012

To be honest, it's going to be a problem for any digital camera, compared to film.

The best technique that I've found is to export from SPP as a 16-bit TIFF at the lowest possible contrast so that everything is in the final file, then work in Photoshop to get the best result.

Here's an example from last year.

This is the original embedded Jpeg. As you can see it goes from clpping in the whites to complete black:

This is the result after processing:

This was another difficult example from the same shoot:

-- hide signature --

Thanks,
Gary.

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D Cox
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Re: Severe dynamic range images - can they be done with Foveon ?
In reply to TRIODEROB, May 14, 2012

Not really on topic for this forum, but I have abandoned the scanner for 35mm slides, especially high contrast ones. I am using a Sony NEX with an Olympus 80mm macro lens (designed for the range 0.5:1 to 2:1 ). This camera has built in HDR which can record the full range of a slide without blocking highlights or shadows.

You can get close on the Epson 750 by turning off all colour correction.

However, the real point is that you can get critically sharp focus on the camera by zooming in to a small part of the screen. There is no way to focus a scanner.

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Mostly Lurking
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Yes, fill light, especially with Adobe's Camera Raw. [nt]
In reply to gbainbridge, May 14, 2012
-- hide signature --

William Wilgus

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diolus
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Ahh isn't film beautiful?
In reply to TRIODEROB, May 14, 2012

Yes:)

 diolus's gear list:diolus's gear list
Sigma DP2 Merrill Nikon D600 Nikon AF-S Nikkor 24-120mm f/4G ED VR +2 more
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