3K chickenfeed & mini Primes

[Jeff Kilgroe]

What about a larger sensor then ... using the same pitch that the 3K's use. What dimensions would it be at that pixel size to get 4K?

The pixel size on the RED One Mysterium sensor, as well as the new S35 Mysterium-X sensor, are 5.4 microns (0.0054mm). The 2/3" Scarlet cameras have more densely packed pixels on their sensors (3 microns wide).

For me when I hear Mini-primes I start to think DX from the Nikon world. Excellent lenses but wrong stick of the evolutionary system. Even red is going S35 eventually with the scarlet, so I guess - be forewarned.

You guys are looking at this the wrong way. The 2/3" format is here to stay, it's just a different format with several different attributes compared to S35, Full Frame, etc..

To address other comments in this thread, the 2/3" Scarlet is not really a "starter RED" or made for students. Sure, it's more affordable due to the smaller, much less expensive, sensor. It just is what it is. And that is a 2/3" camera which jumps right into the same market as the Sony F23 and other smaller / less capable 2/3" cameras.

Not everyone buying a RED One shoots narrative cinema or always wants or needs a S35 frame. Typical ENG work is hell on a S35 system at times. It requires larger lenses and heavier equipment to lug around, it requires more attention to accurate focus. The broadcast market would not switch over the S35 or larger sensors, even if they were the same price. It does not make sense for their format. I'm not sure where some of these lines of thinking are coming from...

 

[J Davis]

The pixel size on the RED One Mysterium sensor, as well as the new S35 Mysterium-X sensor, are 5.4 microns (0.0054mm). The 2/3" Scarlet cameras have more densely packed pixels on their sensors (3 microns wide).

from the edit on my post 57

(edit: I did a quick search, I think they are at 3.2 microns, so corner to corner across a 4k sensor at that pitch would only be I think about 15mm)

Not sure if you're one of the mathematically minded redheads on the forum but does my ~15mm corner to corner calculation add up?

 

[Jeff Kilgroe]

At 3 microns per pixel, a 4K 16:9 sensor (4096x2304) would have a recordable image area of 12.288mm x 6.912mm. This is 14.098mm diagonally or figure it would need at least a 14.1mm image circle to cover a 4K sensor at the same pitch. Back when RED released preliminary sensor specs and announced all the various brains, including the 645, 617, etc.. they stated 3 microns on the 2/3" sensor. Of course, all things subject to change and final specs have never been announced.

Using your number of 3.2 microns (.0032mm), I come up with 15.038mm diagonally for a 4K sensor at that pitch.