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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 :)

Epic S35 FF Aspect Ratio

D

Deanan

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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
 
1. That is awesome

2. Just so that I can understand future updates from RED... what will that "35mm Still Full Frame / VistaVision / Monstro" camera you guys are working on be called now?

It used to be FF35 but I figure that next time Jim talks about FF he will now be talking about the S35 one?

Bruce Allen
www.boacinema.com
 
Deanan said:
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
Click to expand...

That's fantastic - loving those 2700 vertical.. It's great news for 16:9 shoots, and those that want to go anamorphic.

Deanan - what's 5120x2700 in millimeters?
 
Mark Pugh said:
That's fantastic - loving those 2700 vertical.. It's great news for 16:9 shoots, and those that want to go anamorphic.

Deanan - what's 5120x2700 in millimeters?
Click to expand...

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.
 
Sidney L. Plaut said:
I don't understand... so a DCI mastered film is shown in that aspect ratio?
Click to expand...

Try reading this and see if it makes sense:
http://www.dcimovies.com/DCIDigitalCinemaSystemSpecv1_2.pdf

I believe it says that the 2K DCP package is 2048 x 1080 (1.89629 : 1), but from that, the 2K projector shows either 2048 x 858 pixels for 2.39 movies or 1998 x 1080 pixels for 1.85 movies. But I'm not sure if that means the 2K DCP master is always 2048 x 1080 with letterboxing on the top & bottom or left and right sides to accommodate those aspect ratios.
 
Deanan said:
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.
Click to expand...

So you can setup frameguides...

Will those be recorded as metadata for RCX?
We will be able to crop the sensor on recording too, I guess - down the line...
 
Gunleik Groven said:
So you can setup frameguides...

Will those be recorded as metadata for RCX?
We will be able to crop the sensor on recording too, I guess - down the line...
Click to expand...

Yes to both.
(coming soon for the metadata)
 
David Mullen ASC said:
Try reading this and see if it makes sense:
http://www.dcimovies.com/DCIDigitalCinemaSystemSpecv1_2.pdf

I believe it says that the 2K DCP package is 2048 x 1080 (1.89629 : 1), but from that, the 2K projector shows either 2048 x 858 pixels for 2.39 movies or 1998 x 1080 pixels for 1.85 movies. But I'm not sure if that means the 2K DCP master is always 2048 x 1080 with letterboxing on the top & bottom or left and right sides to accommodate those aspect ratios.
Click to expand...

David... What about 4K standards? That x2?
 
David Mullen ASC said:
I believe it says that the 2K DCP package is 2048 x 1080 (1.89629 : 1), but from that, the 2K projector shows either 2048 x 858 pixels for 2.39 movies or 1998 x 1080 pixels for 1.85 movies. But I'm not sure if that means the 2K DCP master is always 2048 x 1080 with letterboxing on the top & bottom or left and right sides to accommodate those aspect ratios.
Click to expand...

That is correct. "Full container" is 2048 x 1080 (1.89629 : 1) for 2K and 2x that for 4K DCI standards. However - most DCPs are delivered in 2.39 and 1.85 aspect ratios WITHOUT the padding (letterboxes). If a DCP is created in full container and has letterboxing - the projector presets mask these and you never see them projected.
 
Mark L. Pederson said:
That is correct. "Full container" is 2048 x 1080 (1.89629 : 1) for 2K and 2x that for 4K DCI standards. However - most DCPs are delivered in 2.39 and 1.85 aspect ratios WITHOUT the padding (letterboxes). If a DCP is created in full container and has letterboxing - the projector presets mask these and you never see them projected.
Click to expand...

So you could actually (if you like the aspect ratio) deliver and play out a "1:1.9" film, as that would give you max resolution in the cinema (and from the Epic).
 
David Mullen ASC said:
In film technology, the term would be "Full Aperture" to describe the maximum photographable area of the negative.
Click to expand...

Hello David,

In an other post I also sugested Full Aperture, but Full Censor is more specific to digital and could be used on every type of censors, either 2/3, s35, FF, ... and don t refer anymore to film. The logic behind digital is not the same as for film and the needs are different, like down sample, crop for different formats 2.35..., half debayer...

Either way, FF should not be used.

Pat
 
Patrick Tresch said:
Hello David,

In an other post I also sugested Full Aperture, but Full Censor is more specific to digital and could be used on every type of censors, either 2/3, s35, FF, ... and don t refer anymore to film. The logic behind digital is not the same as for film and the needs are different, like down sample, crop for different formats 2.35..., half debayer...

Either way, FF should not be used.

Pat
Click to expand...

full "censor" might have some negative connotations :smile:
 
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