Jump to content

Strange flares on the Iscorama


Recommended Posts

EOSHD Pro Color 5 for Sony cameras EOSHD Z LOG for Nikon CamerasEOSHD C-LOG and Film Profiles for All Canon DSLRs

These are commonly referred to as rainbow flares.  They are part of the character of an Iscorama and other anamorphic lenses.  Usually depends on the taking lens, and it shows up with single or non-coated lenses.  Not sure why you'd want to remove it, and the only way is to not shine a light at the lens or basically not have any flares at all.  Otherwise I advise you to get an Isco Ultra-star anamorphic projector lens or some modern multicoated lens (MC).  Then you won't get any flares but have the anamorphic stretch.

Link to comment
Share on other sites

Thanks Nahua for the input!

This is actually the Original Iscorama. I don't recall exactly when it started having the rainbow flares but I somehow recall it wasn't there when I tested it long time ago.

My Iscorama Cinegon doesn't have these rainbow flares at all so that made me wondering why it happens. Tito told me it was from the original Iscorama's design. I'm still not sure though.

Link to comment
Share on other sites

See if the unusual light marks change as you stop down.  Could it be bright light reflecting off the edge of the iris blades?  Do the shape of the marks roughly approximate the blades of your aperture?  Maybe it's from a specular source reflecting off the hand cut (and somewhat imperfect) bevelled edge of the rear anamorphot element? 

Link to comment
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.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Restore formatting

  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.


  • EOSHD Pro Color 5 for All Sony cameras
    EOSHD C-LOG and Film Profiles for All Canon DSLRs
    EOSHD Dynamic Range Enhancer for H.264/H.265
  • Create New...