Iris shading on sensor of BMCC

The place for questions about shooting with Blackmagic Cameras.
  • Author
  • Message
Offline

Kurt Nangle

  • Posts: 7
  • Joined: Thu Jan 19, 2017 6:14 pm

Iris shading on sensor of BMCC

PostThu Nov 08, 2018 8:20 pm

Please see attached still.

This still was from an old Zeiss Super Speed with a triangle iris. The shading expands and contracts with the opening and closing of the iris. It occurs with three different lenses.

Tried shutting the camera down for a day but it's still there on power-up.

Anybody have any ideas on how to get rid of it?

Thanks!

IRIS SHADING med.jpg
IRIS SHADING med.jpg (333.41 KiB) Viewed 165 times
Offline
User avatar

Australian Image

  • Posts: 335
  • Joined: Tue Oct 23, 2018 3:08 am
  • Location: Mirboo North Victoria Australia
  • Real Name: Ray Pollanen

Re: Iris shading on sensor of BMCC

PostThu Nov 08, 2018 8:37 pm

Are you saying that is burnt into the sensor or appears in the image with these lenses? If the latter, it would seem to be a lens issue and not sensor issue.
https://australianimage.com.au/

Return to Cinematography

Who is online

Users browsing this forum: Lawrence Arnold and 17 guests