Lens board hole-size

[Eivind]

Hi there. I am a bit unfamiliar with what sizes the holes of my lensboards should be.
My large format equipment so far:

Chamonix 4x5 viewcamera
Rodenstock APO Sironar S 210 mm (brand new)

I will also buy a 150 or a 90 mm when I find it. Probably Rodenstock or Schneider.

I have ordered two lensboards to fit on my gear. Hugo now wants a reply on how large I want the holes.

How large do I want them ?

Thanks for replying within a limited time, as this is the last thing I am waiting for.

Best,

Eivind

 

[Bob]

It is dependent on the shutter.
The 210mm S uses the Copal 1 which needs a 41.8mm lend board hole.
The 150 Rodenstock will need a 34.8mm lens board opening since it uses a Copal 0
see data at http://www.linos.com/pages/mediabase/original/rodenstock_taking_lenses_analog_e_2270.pdf
-bob

 

[Lars]

As Bob indicated, hole sizes are related to shutter size, which essentially comes in three sizes today: Copal 0, Copal 1, and Copal 3.

If you order lensboards from a LF dealer or manufacturer, all you should need to know is which shutter size the lens uses.