Adaptor board for Korona 5x7"

Jarvman

Member
Joined
Sep 9, 2006
Messages
791
Location
Cardiff, Uni
Format
Multi Format
Could anybody give me some advice on how to fit modern lenses to a 5x7 Korona. The old lensboards are way too thick to accomodate lenses with retaining rings designed for linhof thickness boards. I was thinking of having an adaptor board made to take lenses mounted in linhof style lensboards. Anybody have any ideas on this? :confused:
 

reellis67

Subscriber
Joined
Mar 10, 2005
Messages
1,885
Location
Central Flor
Format
4x5 Format
The board that I made for my 8x10 Korona is composed of two thinner pieces of wood glued together, one with a hole slightly larger in diameter than the shutter, the other slightly larger in diameter than the retaining ring. This allows a thin enough portion of wood that the retaining ring fits on the lens properly - essentially the front half of the lens board holds the shutter/lens and the rear half builds the thickness up to the desired dimension. If you are using a full thickness board you might have to use a router to remove some of the thickness so that you can mount your lens.

- Randy
 

paul_c5x4

Member
Joined
Apr 22, 2009
Messages
1,942
Location
Ye Olde England
Format
Large Format
When I made a lens board recently, the board it's self was 6mm thick. The lens required a maximum thickness of around 3mm. Ended up counter boring the back so that the thickness was 1.6mm.
skgrimes.com gives a handy table for standard hole sizes - The #3 thickness may be too high. Schneider gives 1.5 to 5.0mm in their (archived) documentation.
 

Mike1234

Member
Joined
Jul 6, 2009
Messages
1,908
Location
South Texas,
Format
4x5 Format
You can also just cut the hole larger than needed and add a thin metal plate covering the hole. Then cut the proper sized hole through the metal plate.
 

david_mizen

Member
Joined
Jan 20, 2008
Messages
89
Location
Perth Wester
Format
Medium Format
all my lenses are mounted on a linhoff type board i am mking an adapter from a piece of aluminium plate 6mm thick which is as near as possible to the thickness of wooden board on on my ansco with a rebate to accept the smaller linhof 99x96 boards also on flea bay there is a person how makes deardorff adaptors he made an adaptor for me which was a deardorff/linhof front with a wooden spacer and an ansco board on the back to fit the camera
 
You must log in or register to reply here.
Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…