Jump to content


Photo

Is this a Spot on the Filter or Lens Flare? (with video)


  • Please log in to reply
1 reply to this topic

#1 Karl Lee

Karl Lee
  • Basic Members
  • PipPip
  • 92 posts
  • Other

Posted 03 September 2014 - 01:16 PM

I was reviewing some S16 I recently shot and transferred, and in a few scenes I noticed what I originally thought was lens flare.  However, the more I look at the transfer and compare the scenes in question back to back, I'm thinking it was more than likely a small spot or speck of dust on my filter or lens.  I was filming with my SR3, Canon 11.5 - 138 zoom with a clamp-on Chrosziel 4x4 sunshade, and a 4x4 Tiffen 85 filter.

 

I've uploaded a short clip with a few scenes in which the small spots are visible, so if anyone can take a look and let me know what you think might be the culprit, I'd appreciate it.  The spots are horizontally toward the center of the frame and vertically about a third of the way down from the top of the frame.  I'm pretty sure I checked the filter and lens for dust or dirt before and after I was filming that day, but I certainly could have missed something.  Since the spots are in approximately the same area in scenes filmed at 11.5mm with the 85 filter in and don't appear to change as the camera is panning, I'm thinking this was likely an issue with the filter.

 

Thanks!


  • 0

#2 George Ebersole

George Ebersole
  • Sustaining Members
  • 1660 posts
  • Industry Rep
  • San Francisco Bay Area

Posted 03 September 2014 - 05:16 PM

That's a spot.  Or, more correctly, it could be a patch where the actual coating on the material that was laid over the glass suffered a bubble in manufacture, or got stretched and created a little hole during the manufacture process.

 

A lens flare would travel, and looks much different.


  • 0


New Pro Video - New and Used Equipment

CineLab

Wooden Camera

Abel Cine

CineTape

Ritter Battery

FJS International, LLC

Broadcast Solutions Inc

Metropolis Post

Media Blackout - Custom Cables and AKS

Glidecam

Aerial Filmworks

Gamma Ray Digital Inc

Technodolly

Visual Products

Paralinx LLC

Willys Widgets

Rig Wheels Passport

Tai Audio

The Slider

rebotnix Technologies

Broadcast Solutions Inc

Wooden Camera

rebotnix Technologies

Gamma Ray Digital Inc

Aerial Filmworks

Rig Wheels Passport

FJS International, LLC

New Pro Video - New and Used Equipment

Willys Widgets

Visual Products

CineTape

Metropolis Post

Technodolly

Tai Audio

Glidecam

Abel Cine

CineLab

Ritter Battery

Paralinx LLC

Media Blackout - Custom Cables and AKS

The Slider