Jump to content


Photo

Kinoptik 5.7mm Lens Collimation


  • Please log in to reply
3 replies to this topic

#1 Kori Perez

Kori Perez
  • Basic Members
  • PipPip
  • 10 posts
  • Cinematographer

Posted 16 September 2008 - 11:42 PM

I have a Bolex SBM that will soon be modified to super 16.
I wanted a nice wide angle that covered S16 and I picked up a c-mount Kinoptik 5.7mm 1.8.

It is a fixed focus lens that seems to be a bit out of focus thru the viewfinder. I think it needs to be collimated (?). Images only come into focus when I use the lens like a macro up close and personal. I'm sure this problem is due to my reflex prism.

How would one go about fixing this problem?
Thanks!

Edited by Kori Perez, 16 September 2008 - 11:43 PM.

  • 0

#2 Mitch Gross

Mitch Gross
  • Basic Members
  • PipPipPipPip
  • 2873 posts
  • Cinematographer

Posted 17 September 2008 - 12:13 PM

Send it to a camera rental house that can mount a c-mount lens on a collimator bench.
  • 0

#3 Kori Perez

Kori Perez
  • Basic Members
  • PipPip
  • 10 posts
  • Cinematographer

Posted 19 September 2008 - 07:33 PM

Will a collimator bench be able to fix the issue?
  • 0

#4 Ken Hale

Ken Hale
  • Sustaining Members
  • 23 posts
  • Other

Posted 20 September 2008 - 03:35 PM

Will a collimator bench be able to fix the issue?

I think that the best way to set this lens is by using a lens test projector.
Optimize your focus for 5-6 feet, and everything from 18 inches to infinity should fall into focus due to the hyperfocal distance of this lens.
I recommend sending your lens to someone that specializes in Cine lens repair.
  • 0


Technodolly

Gamma Ray Digital Inc

Ritter Battery

Willys Widgets

The Slider

Opal

Media Blackout - Custom Cables and AKS

rebotnix Technologies

Rig Wheels Passport

Abel Cine

Glidecam

Broadcast Solutions Inc

Tai Audio

Wooden Camera

Paralinx LLC

Visual Products

CineLab

CineTape

Metropolis Post

Aerial Filmworks

FJS International, LLC

Visual Products

Aerial Filmworks

Gamma Ray Digital Inc

Abel Cine

Paralinx LLC

Metropolis Post

Tai Audio

Technodolly

rebotnix Technologies

Willys Widgets

Opal

Wooden Camera

CineTape

Glidecam

Ritter Battery

The Slider

FJS International, LLC

Broadcast Solutions Inc

Media Blackout - Custom Cables and AKS

Rig Wheels Passport

CineLab