What's better quality 6k @ 60 fps, 13:1, or

[Mako]

5k @ 60 fps 9:1 ?

1080 delivery, trade show, onto a very large screen.

4447 x 1080

70' x 17' screen

Post might have to do some push ins.

 

[Eren Ozkural]

What does the footage contain? You're going to feel the difference in compression if you push into high frequency details (e.g. thousands of blades of moving grass, tree bark etc.)
When you say 1080 delivery are you talking about 1080p blown up to fit the 4447px wide display setup or can they display a letterboxed 4447px wide video file?

 

[Michael Tiemann]

5k @ 60 fps 9:1 ?

1080 delivery, trade show, onto a very large screen.

4447 x 1080

70' x 17' screen

Post might have to do some push ins.

You can shoot 5K 4:1 aspect ratio (5120x1280) at 60fps at REDCODE 5:1 on an SSD 128GB or REDCODE 4:1 on a 512GB mini-mag. Actually you can shoot at 5.5K (5632x1408) at the same REDCODE level, or go for 6K 4:1, increasing compression just one level of REDCODE depending on media type.

 

[Peter Stelzhammer]

Depends on the picture content I guess... For high contrast situations (esp. with lots of moving details) I'd go for as little compression as possible (e.g. trees and landscape when shooting outdoors with high sun contrast and some wind blowing the leaves). Don't know how Dragon handles this but with such picture content we sometimes had visible compression artifacts happening on EPIC M-X with 8:1 (no problems with 5:1 as far as I can remember, 7:1 was also pretty safe most of the time). Good sample for compression test-shoots are trees as mentioned already... edit: It's more apparent and higher likely to appear (the artifacting) when shooting on wide lenses.

 

[Hrvoje Simic]

The one with significantly lower compression.