Scarlet-W with Iscorama 1.5x

[Stephen Nguyen]

Hi everyone,

I've had my Scarlet-W for a while now and I absolutely love it! I recently acquired an Iscorama pre-36 anamorphic lens and was wondering how I should go about handling the post resolution? I shot some footage at 5k full frame which is 5120x2700. Since it's a 1.5x lens, what resolution should I squeeze to? I'm looking to get as much resolution as possible without having to crop. If cropping is required then I don't mind snipping some of the sides off. I'm trying to finish to a 4k file. Sorry if this is an obvious question, I'm just unfamiliar with 1.5x anamorphic. Thank you!

 

[Stephen Nguyen]

Managed to do a 1.5x squeeze and got a resolution of 4096x1280. Correct or incorrect? Please help me clarify. Thanks!

 

[Satsuki Murashige]

I've answered this question before here: http://reduser.net/forum/showthread...R-IS-Posible&p=1641356&viewfull=1#post1641356

The short answer is, you have to choose your final aspect ratio first, then work backwards to figure out your pixel resolution. If you want a 2.39:1 aspect ratio, then divide 2.39 / 1.5 = 1.59. So your camera aspect ratio needs to be 1.59:1. To find the corresponding resolution, choose a pixel height (2160px in 4K format). Then multiply 2160 x 1.59 = 3440px. So set your frame guides to 3440 x 2160. When you unsqueeze by 1.5x in post, you should have exactly 2.39:1.

With a non-standard squeeze ratio like 1.5x (or 1.4x which I recommend for Iscoramas), you will need to create your own custom frame guides. Luckily, it's very easy to do this with Red cameras.

 

[Stephen Nguyen]

Thank you, sir. That helps a lot!