Jump to content
Ryan Fleet

What causes flicker in film

Recommended Posts

Im not talking about light flicker - Im talking about film not having what looks like a constant exposure. Ive seen this on transfers from the same model cameras. One looks steady and the other flickers I dont get it.

 

Is this caused by the camera not being in good shape or is it a transferring issue?

Share this post


Link to post
Share on other sites

I once had a bad roll that flickered due to uneven x-ray damage. I've also seen footage flickering caused by a faulty camera that couldn't maintain a steady speed.

Share this post


Link to post
Share on other sites

There are lots of variables in your question. Camera, stock, processing, telecine, playback system, I mean it could be a lot of things. Film stock is pretty consistent and any professional lab will be too. So at that point, it's really down to the camera.

 

I'd love to see the samples you discussed, it would be easy to determine the problem.

Share this post


Link to post
Share on other sites

To me that looks like ever so slight variations in the film speed in the camera likely caused by tension in the film path somewhere. You can see that the flicker also appears to correlate with some slight frame registration jitter.

 

Those cameras are very cheap and simple cameras with very little registration precision. Something like a Bolex with a trailing arm, a well tuned ACL or a pin registered Arri is not going to have those issues. But they are also $1K,$2K or more cameras. Not $100 cameras.

Share this post


Link to post
Share on other sites

Another thing about those K-3s. They were infamous for film path issues, especially faulty loop formers. Most rebuilds usual take the loop formers out all together and make the loader manually make the loops... which takes some paying attention to what youre doing.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



  • Wooden Camera



    CineLab



    Visual Products



    Glidecam



    Abel Cine



    Ritter Battery



    New Pro Video - New and Used Equipment



    Tai Audio



    Gamma Ray Digital Inc



    Just Cinema Gear



    Paralinx LLC



    FJS International



    Media Blackout - Custom Cables and AKS



    Rig Wheels Passport



    Metropolis Post



    G-Force Grips



    Serious Gear



    Broadcast Solutions Inc


×
×
  • Create New...