Jump to content


Photo

Bolex RX4 - Vario Switar 86EE (18mm-86mm f/2.5) Zoom Lens


  • Please log in to reply
1 reply to this topic

#1 David Nethery

David Nethery
  • Basic Members
  • PipPip
  • 56 posts
  • Other

Posted 09 August 2013 - 06:20 PM

I've been given an opportunity to consider purchasing a Bolex RX4  with Vario Switar 86EE (18mm-86mm f/2.5) Zoom Lens.     I'm being allowed to consider the purchase by testing the camera first, since the seller is local .  (this is from someone selling their husband's equipment , but she knows nothing how it works.  )

 

I've used a Bolex before , but never with the Kern Vario Switar 86 EE (18mm-86mm f/2.5) Zoom Lens.   It's the zoom lens that is puzzling me.

 

 

I've ordered some film to run through the camera (which looks and sounds like it's in good shape)  , but I'm puzzled by the  Vario Switar 86EE (18mm-86mm f/2.5) Zoom Lens.    From what I can read about it this has an EE meter powered by one  PX13 1.35v battery ,  the modern equivalent of which is  Wein Cell MBR625 1.35v zinc air battery.  

 

 

I've already put a fresh Wein Cell MBR625 1.35v battery into the chamber of the Vario Switar 86EE (18mm-86mm f/2.5) Zoom Lens,  but I can't tell if it is working or not.   Is there any way to test if the battery is working ?      If I set the ASA and the film running speed (24fps) with the longer , small barrel under the lens  should I be seeing some change in the viewfinder when I move the camera from a light to a dark area ?     I don't see any moving needle with  f stop indications in the viewfinder.  How do I know if it is working ?

 

If the EE automatic diaphragm control with a cadmium sulphide photo resistor is DEAD can I just use an external meter and set the f stop manually on the Vario Switar 86EE (18mm-86mm f/2.5) Zoom Lens ?

 

 

 

Does anyone know where I could download the manual for the Vario Switar 86EE (18mm-86mm f/2.5) Zoom Lens  ?

 

 

Thanks.

 

 

Vario%2520Switar%252086EE%2520%252818mm-

 

.


Edited by David Nethery, 09 August 2013 - 06:21 PM.

  • 0

#2 David Nethery

David Nethery
  • Basic Members
  • PipPip
  • 56 posts
  • Other

Posted 10 August 2013 - 02:53 AM

The seller found a copy of the user manual for the Vario Switar 86EE 18mm-86mm f/2.5  Zoom Lens , so now I've got that.

 

The reason the auto exposure did not appear to be responding is because it was set to manual exposure mode the whole time .  The  second smaller barrel (the galvanometer) to the right of the lens has to be pulled out and rotated to the correct position to engage the auto diaphram.   When in auto mode you can then observe the needle move up and down the f-stop scale on the galvanometer which shows that the lens is responding to different lighting conditions  .  There is no f-stop scale seen through the viewfinder.   The only indication in the viewfinder that the lens is opening up or closing down is that the viewfinder becomes visibly dimmer when the lens is pointed at a bright area (and it stops down to f/11 or f/16) , then moving it to dimmer area the viewfinder brightens somewhat as it opens up to f/4 or f/2.5

 

.


  • 0


rebotnix Technologies

Wooden Camera

CineLab

Metropolis Post

Rig Wheels Passport

Broadcast Solutions Inc

Tai Audio

FJS International, LLC

Paralinx LLC

Media Blackout - Custom Cables and AKS

Gamma Ray Digital Inc

Glidecam

The Slider

CineTape

Willys Widgets

Ritter Battery

Visual Products

Technodolly

Abel Cine

Opal

Aerial Filmworks

Visual Products

Aerial Filmworks

The Slider

CineTape

FJS International, LLC

Opal

Ritter Battery

CineLab

Abel Cine

Media Blackout - Custom Cables and AKS

Technodolly

Willys Widgets

Tai Audio

Gamma Ray Digital Inc

Rig Wheels Passport

Metropolis Post

Glidecam

Paralinx LLC

Broadcast Solutions Inc

Wooden Camera

rebotnix Technologies