Resolution Obsessed...

[Dylan Macleod CSC]

Okay, pretend for a minute that resolution is highest priority.

Lets say it was possible to get access to a Sony 4K projector. From what I could find, it projects at a resolution of 4096x2160 (1.9:1).

RED is 4520x2540(1.78). More than enough to fit in to the Sony resolution.

Now, lets say you transcode for Final cut editing at PRO RES 422. Is that resoltuion natively 2048x1024 (2:1)?

If I decide I want to maximize every pixel at the time of projection and work backwards from this thoretical Sony 4096x2160...how can I maintain that aspect ratio when it comes time to transcode footage for cutting in Final Cut?

Is there another codec I should use? Or is it possible to change the aspect ratio of ProRES 422?

I am not totally FCP savvy, so thanks in advance for your patience!

Dylan Macleod
Cinematographer
Toronto, Canada
www.dylanmacleod.com

 

[Radoslav Karapetkov]

(a bit off-topic).

I wonder if it could be possible to obtain a 100 % 4K debayer by downrezzing 2540 footage.

 

[jbeale]

RED is 4520x2540(1.78)

The sensor is, but there's no way to get more than 4096 x 2304 out of the camera at this point (is there?)

 

[Barry Green]

RED is 4520x2540(1.78).

Well, you're starting from an inaccurate starting point. The sensor is 4520, but the recorded format is 4096. So ignore the 4520, you can't do anything with that (yet; maybe someday they'll have a 4.5k recording mode).

lets say you transcode for Final cut editing at PRO RES 422. Is that resoltuion natively 2048x1024 (2:1)?

Secondly, while I'm not an FCP user, it's my understanding that FCP can't handle 4096 file sizes. So you'd have an issue there (although perhaps something like Crimson would get around that limitation?)

 

[Dylan Macleod CSC]

Well, you're starting from an inaccurate starting point. The sensor is 4520, but the recorded format is 4096. So ignore the 4520, you can't do anything with that (yet; maybe someday they'll have a 4.5k recording mode).

Secondly, while I'm not an FCP user, it's my understanding that FCP can't handle 4096 file sizes. So you'd have an issue there (although perhaps something like Crimson would get around that limitation?)

I thought RED was 4900x2580 but only 4520x2540 can be used? The camera specs state:

Active Pixel Array 4520 (h) x 2540 (v)
Full Pixel Array 4900 (h) x 2580 (v)

I assumed the "active pixel array" would be the "record format"?

I now recall much discussion over this and will troll the archives...

Regarding FCP, we would cut at lower resolution but would want to maintain the same aspect ratio.

Dylan Macleod
Cinematographer
Toronto, Canada
www.dylanmacleod.com

 

[jbeale]

Active Pixels = displayed in viewfinder
Active Pixels != recorded

There is a "look-around" area on the edges of the viewfinder which does not reach the recorded output, at least at the present time.

(This is the opposite of SD and HD consumer video cameras with a viewfinder that normally shows you less than what is recorded; missing a 10% "overscan" region around the edges).

 

[Chris Parker]

when transcoding to prores files, there is an option to 'maintain original source aspect ratio' which will do just that. there is an option to change that, but by keeping this selected, whatever format the RED records in...will then be maintained during the transcode...

 

[J.R. Hud]

I wonder at what point we'll get 'too much info'.

Something magical and surreal about an image that isn't crystal clear.

 

[Brent J. Craig]

I wonder at what point we'll get 'too much info'.

Something magical and surreal about an image that isn't crystal clear.

I would rather have too much info and dumb it down later. You can always soften stuff but you can't get back info that isn't recorded.