Read the manual?
I have read the manual. There are some grey areas and perhaps omissions. For example, the manual doesn't state to slide the rails back towards the lens before sliding the lens out. But others have mentioned not doing so could cause damage. Regarding, the cams the manual gives the impression that one can drop the bed to the center position without damaging the cam, but dropping to the bed to the bottom position will damage the cam. This was always confusing to me, because with a 90 mm lens (for which I have a focussing cam) I believe I might need to drop the bed under some circumstances, but did that mean I had to take out the cam?
As I pointed out before, remove the cam before dropping the bed, replace the cam after you drop the bed.
The factory instructions for opening the camera on page 10 describes how to set the front standard to the infinity position. It is not necessary to slide the rails back to do this. But if you pull the front out of the camera and use a lifting motion at the same time you might take that front standard off the rail. So some users find that sliding the rail backwards helps them. Whether or not you do that is up to the user. Personally I never slid the rail back when either using the camera or demonstrating the camera.
Most of the operation of the current MT cameras are the same as your IV, other then how to do a front rise, the amount of movements and lens cramming instructions and how to install a fresnel.
Go to the LInhof factory web site, click on service, choose manuals from the drop down menu, select the Master Technika manual and download it and most of your questions will be answered.
Try to find a bare 90mm cam somewhere, to leave on the camera, as you can drop bed and close it with this cam holding everything in correct position... The longer cams cause trouble if the bed drops (remember that RF use + bed drop don't work together)...
I don't use a Tek as a hand camera, so the RF is useless, so the 90mm cam keeps trouble out of the way, and even the grip and finder are large and makes the camera large when packed... For me, it's camera and it's movements that goes right onto a tripod... I use a lighter press camera to handhold (without wrist-wrecking)...
Steve K
Bob - This clears up a lot, thanks. The incompatibility/contradiction was removing the cam before dropping the bed AND meeting the requirement of having the rail abut the 'home' lens position. Once the bed is dropped, the lens can't be brought out if the rail is moved all the way towards the box. I understand now that having the rail towards the box for lens deployment, while it might be good, isn't the Linhof stated procedure.
This is a very useful book, because it shows all the accessories: https://www.amazon.de/LINHOF-PRACTIC...8833164&sr=8-8 You will get Linhof-GAS, https://www.abebooks.com/book-search...nhof-practice/
This is the secret 372 pages manual for Linhof Technikas ;-) https://www.zvab.com/servlet/BookDet...-srp5-_-title5, edited by Joachim Giebelhausen, https://www.abebooks.co.uk/Manual-Ap.../1176126846/bd https://www.amazon.com/Manual-applie.../dp/B0007J6PFS - Technika IV and V in every situation ...
Regarding the bending of the cams: I have observed that something like this can happen when the tripod mount of the focusing base is loose and sticks out from the top.
Another observation: if you fold up a formerly folded down camera base and if the standard is not standing completely on its rail, there will be an "Unglück".
Last edited by Daniel Casper Lohenstein; 24-Dec-2020 at 13:10.
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