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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

Build 16... taste

Are you teasing us with the 18-85 too?
 
Jim,

Will you share the lighting conditions?

Was the chart lit with Kino's? Tungsten? HMI's?

How much light is hitting the chart?

T or F stop?

Thanks again.

david
 
Damn. Wow. This is really unbelievable. I'm friggin' speechless. Jim, Graeme, Deanan, Jarred, Matt, Rob, et al. - you guys are amazing. It's truly incredible what vision, talent, brains, team work, tenacity and a WHOLE LOT of capital can do. It's rare when all those variables come together under one roof, so that makes this feat all the more impressive.

Jim - You were not only able to make your dream a reality, you succeeded in bringing mine that much more into focus too.

Damn.
 
Wow! We've been shooting exterior daylight for the past two days with ND's and were stunned by the high quality of the imagery. I can't wait to access ISO 125. You guys never cease to amaze me. When will your documentary "How The Red Was Won" be released? ;)
 
Ok. seriously the grain structure looks decidedly filmic. like others have said less clumpy and waaay smoother and even. granted its not moving and thats another test but i have no doubts it will be smooth and creamy. the iso spread is great and super subtle.
you guys are really killing it. makes me so stoked to think about Build 17!
 
Damn!!!!!!!!!!!!!!!!

Can't wait!
 
why, that last one looks like film!
 
battistella said:
Jim,

Will you share the lighting conditions?

Was the chart lit with Kino's? Tungsten? HMI's?

How much light is hitting the chart?
Click to expand...

How did you compensate for this huge range? If you did it with ND glass - did you get any of those "IR issues"? I certainly can't see any shift of colours in the blacks...
 
F4 to F22 is what, 5 stops, which is like ISO 100 to 3200. I'd expect that Jim did an exposure ramp, stopping down 1 stop each time on the lens and boosting the ISO one stop each time to compensate. I did that here and it tracked beautifully. ISO3200 looked a bit crumbly, but hey, it's ISO3200 so what do you expect. But it looked essentially "the same" as ISO100 in tone and everything.

Graeme
 
Graeme Nattress said:
F4 to F22 is what, 5 stops, which is like ISO 100 to 3200. I'd expect that Jim did an exposure ramp, stopping down 1 stop each time on the lens and boosting the ISO one stop each time to compensate. I did that here and it tracked beautifully. ISO3200 looked a bit crumbly, but hey, it's ISO3200 so what do you expect. But it looked essentially "the same" as ISO100 in tone and everything.

Graeme
Click to expand...


Thanks Graeme,

I'm curious about the lighting because the sensor looks better at 5000K and above and Tungsten produces a "noisier" image. I am just curious to get the most out of the sensor and if that means daylight Kino's over 3200K RedHeads, that would be worth knowing.

I have found that lighting tungsten and setting the Kelvin to about 3900 yields a nice warm image with not much blue noise (I know most of this will be gone in build 16 because the color holds up so well at the different ranges)

I love the way the camera looks with LED LITE PANELS at 56K.

Quality of light is so important.

David
 
Basically, we have two things fighting each other - tungsten light which is blue deficient, and silicon based sensors, which are insensitive to blue light. So to make white look white, we have two things we can do - boost blue, or diminish red and green.

What you're doing, David, is just not quite boosting blue enough to cause an issue, leaving the image a bit warm, but looking good. That's a fair and reasonable way to proceed. I'd hazzard that tungsten may look better, but I'd need to do proper light level balanced tests to be sure.

I think any silicon sensor based camera will look better with bluer lighting, just because of how silicon sensors work....

Graeme
 
Excellent Graeme,

Thanks for this concise explanation. Nice clear answer.

David
 
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