Jump to content


John H. Tischler

Member Since 22 Jun 2018
Offline Last Active Jan 14 2019 11:18 PM
-----

Posts I've Made

In Topic: Repairing Kodak Anastigmat and Kodak Ektar Cine Lenses

11 January 2019 - 01:21 AM

So the screw acts as a key in the channel, stopping the lens from rotating as it telescopes. If the screw is too long or wide, it will jam in the channel instead of sliding. Usually those key screws have a cylindrical end where they slide in a channel, and the thread up near the head. Its possible someone replaced it with the wrong screw.

Since there is an external screw hole that goes through the S mount casing, I don't see how anything could "slide" up


In Topic: Repairing Kodak Anastigmat and Kodak Ektar Cine Lenses

10 January 2019 - 01:36 AM

That screw is out a bit in the photo intentionally. With the screw completely out, the lens SEEMS to focus normally. But I doubt that they would have just put a screw hole there for no reason. When I unscrew the base part, there is a long channel along the aluminum shaft. The screw sets there. Once it's in there, NOTHING but the aperture will turn.

 

9674_cinelensstripped_1.jpg


In Topic: Repairing Kodak Anastigmat and Kodak Ektar Cine Lenses

10 January 2019 - 12:27 AM

Follow up: In the lens shown in this post, the focus is absolutely frozen with the circled screw installed, but seems fine with it removed. Since I'm not sure how the lens works, I don't know if something is frozen up inside or if the screw is supposed to be removed.

 

9674_lensrepair_1.jpg
 

In Topic: Curious Kinoptik Lens Question

15 November 2018 - 10:24 PM

Yes that thread is a focussing helical. The lens is missing a mount and associated keyway to prevent the front rotating. Presumably a focus scale ring too.

 

Totally useless as it is, let me take it off your hands.. ;)

 

attachicon.gifkinoptik 75mm.JPG

LMAO

 

But nice try, my friend ;)


Broadcast Solutions Inc

Glidecam

CineLab

Ritter Battery

Gamma Ray Digital Inc

Abel Cine

New Pro Video - New and Used Equipment

Media Blackout - Custom Cables and AKS

Rig Wheels Passport

Visual Products

FJS International, LLC

Wooden Camera

Tai Audio

Metropolis Post

Paralinx LLC

Tai Audio

FJS International, LLC

CineLab

Ritter Battery

Gamma Ray Digital Inc

Media Blackout - Custom Cables and AKS

Abel Cine

Visual Products

Metropolis Post

Wooden Camera

New Pro Video - New and Used Equipment

Broadcast Solutions Inc

Rig Wheels Passport

Glidecam

Paralinx LLC