Digital Bolex update

R

Razz16mm

Veteran
I'm running new beta firmware packages for the analog FPGA sensor board and for the DSP board. New firmware release is coming very shortly. Overall color tracking and chroma noise is much improved. Much easier to grade for good skin tones.
A couple of samples from a day of the dead art studio party. Mixed tungsten, fluorescent, and led available light environment. Cosmicar 12.5 f/1.6 lens at either f/1.6 or f/2 for most of these. 24p/400iso/180 shutter. Interior shots pushed to 1200 ISO. Exterior shot pushed to 3200 iso. Processed in Resolve 11 using DNG raw menu tools only, no luts, REC709 color space with sRGB gamma. Couldn't read the exterior light as it was too low to meter, but interiors were mostly in the 5 to 10 footcandle range on average.

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Still frame from Suzy's Open Studio demo last Saturday. Light mostly from a single 6 tube T8 industrial high bay fixture with Phillips 5500K daylight balanced 80 or 85 CRI tubes. These tubes are very digital photo friendly with a nice overall cool balance. We lit Suzy's studio with them and shoot artwork under them with her Nikon. No problem pulling the color palette of her paintings in Photoshop. They produce nice skin tones too, a little warmer and richer than a lot of fluorescents.

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Razz, can you clarify what you're up to? Is this a new board in the Dbolex or updated firmware?

Of all the things one can say about the Dbolex, or denounce, color's damned tip-top. This camera's one of the few cases where I'd say if you're not getting good results as far as color goes, it's your shooting and post process hands down.
 
Kholi said:
Razz, can you clarify what you're up to? Is this a new board in the Dbolex or updated firmware?

Of all the things one can say about the Dbolex, or denounce, color's damned tip-top. This camera's one of the few cases where I'd say if you're not getting good results as far as color goes, it's your shooting and post process hands down.
Click to expand...

This is with new Beta firmware updates. But there are two different new firmware loads in the camera, one for the analog sensor FPGA board and one for the DSP board that runs the digital side of the camera. The gray scale tracking is much more neutral with the new versions, but I still have to desaturate things a bit in REC709 color space to keep the reds within gamut limits.
The big improvement in chroma noise means it is possible to get a clean push to around 1600iso for low light scenes. The outside shot above was pushed to 3200 and probably would be about the outer practical limit with some noise reduction. None of these images has any noise reduction applied.
The studio shot goes the other way. Exposure was about 2/3rds stop ETTR over, pulled down in post.
 
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