how to measure and cut down a Linhof lens cam?
I would like to make a cam for a Linhof 4x5 - I have a 150mm cam - I presume I can cut it down to a 130mm cam?
how to measure and cut down a Linhof lens cam?
I would like to make a cam for a Linhof 4x5 - I have a 150mm cam - I presume I can cut it down to a 130mm cam?
I think you will need an expert machinist to do this; Richard Ritter did one for me in the past.
I am pretty sure that S.K. Grimes can also do this.
Precision camera in Niles Il is factory trained for this.
You would be better of to obtain an orphaned 135mm cam than to use the 150mm, too much cutting. Make sure you get the right cam for your model camera IIIs are different from IV, V, Master. Then proceed as follows.
Get youself a small machinist's hammer, a flat steel surface to work on and and a fine file. Mount the lens and set the lens infinity stops with the camera track back on its stops. Now look through the RF at a distant target. If it has focused beyond infinity, the cam is too high on the high end. If the RF does not yet coinside, the cam is too low on the high end. Use the file to lower high spots. Tap with the hammer along sections of the cam that are too low. This will stretch out the metal, adding height, and you can later smooth out the curve with the file. Use this proceedure at several more focus points closer to the camera. You can make a very accurate cam from hobby shop brass stock with this method. You can also adjust orphaned Linhof cams to a new lens this same way.
Marflex is gone.
Try http://krimarphoto.com/.
Other people here probably have better recommendations.
Bob S?
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