Epic S35 FF Aspect Ratio

**Patrick Tresch** · 02-21-2011, 06:15 AM

Sorry...

**Gavin Greenwalt** · 02-23-2011, 01:13 AM

Originally Posted by Deanan

27.468mm x 14.580mm

No look around in the full res format but what's becoming more
common is to frame smaller and record the look around.

RED.com says 27.65 what is the 27.65 number and would 4k then be: 21.97mm?

I thought RED One MX 4k was 22.12mm

Probably wouldn't be noticeable in tracking etc but always nice to be thorough and accurate.

**Deanan** · 02-23-2011, 02:34 AM

Originally Posted by Gavin Greenwalt

RED.com says 27.65 what is the 27.65 number and would 4k then be: 21.97mm?

I thought RED One MX 4k was 22.12mm

Probably wouldn't be noticeable in tracking etc but always nice to be thorough and accurate.

typo... 27.648mm (27.65mm rounded)
4096 is 22.12

**Alexander Christ** · 02-23-2011, 07:28 AM

for your own math: 4096 x 0.0054 (pixel-size) = 22.12

**Kip Kubin** · 02-24-2011, 07:12 PM

Originally Posted by Deanan

Epic S35's 5K FF is 5120x2700 and is a 1.896:1 aspect ratio.

1.896: is also the ratio for the 4k/2k DCI formats:
4096x2160 = 1.896:1
2048x1080 = 1.896:1

So... what are the largest dimensions of the Epic sensor for Anamorphic use? 4K ANA or 5K ANA???

Also...just out of curiosity, if most ANA lenses are 2:1 why isn't the Red censor in ANA mode not just the largest square available?

Thanks

**Kip Kubin** · 02-27-2011, 07:15 AM

I'lll pose my question another way...

What are the maximum pixel dimensions of Epics Anamorphic mode?

**Dominic Jones** · 02-28-2011, 05:12 AM

Originally Posted by Kip Kubin

So... what are the largest dimensions of the Epic sensor for Anamorphic use? 4K ANA or 5K ANA???

Also...just out of curiosity, if most ANA lenses are 2:1 why isn't the Red censor in ANA mode not just the largest square available?

Thanks

Remember that the image ratio you want to end up with is 2.40:1, so the 2x squeeze means you need a "native" (i.e. unsqueezed) ratio of 1.20:1 on the sensor/neg (2.40/2 = 1.20).

If you went with the largest square, then you'd get 2700x2700, which when cropped down to give a 2.40:1 unsqueezed image would give you an effective 2700x2250 resolution.

Assuming full height recording @ 1.2:1 native (aka 5K ANA), your pixel dimensions would be 3240x2700 - so much larger (44%) than using the largest square available...

Hope that helps,
Dom.

**Kip Kubin** · 02-28-2011, 07:35 AM

Yes thanks.

Kip

**Esmaile Neissi** · 04-01-2011, 08:05 AM

So is this a mode or another format that will add to epic or totally new camera if so when it will be relased?

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