Epic-W Vignetting with Sigma 18-35 8k WS but shooting 4k prores

[Boris Jansch]

Any ideas why there would such heavy vignetting at 18mm? I'm recording 4k Prores using the 8kWS setting. Still looks amazing but I wasn't expecting that. Could it be the Tiffin Vari ND? Hmmm...

 

[Brendan H. Banks]

Nope, it's the lens. The lens is not a FF lens but a crop sensor lens. You will see it unless you go 7k.

 

[Logan Gee]

Sensor size is 29.90mm x 15.77mm and the lens covers 28.4mm.

 

[Boris Jansch]

Many thanks, that clears that up.

 

[Patrick Tresch]

https://vimeo.com/86447447

On the Dragon sensor wich is a tiny bit bigger.

Pat