My Sinar Norma, which seems to be a younger 4x5” version with nylon gears, is a bit wiggly and loose on the rail. I have no idea if this is possible to amend? There are no pipe wrench marks anywhere and no signs of abuse, everything fits, if a bit loose/wiggly. The condition to me seems more like in “slightly used and never CLA'd” condition.

I also wonder if the rubber (?) inserts on the inside of the part that grips the rail has anything to do with it, ie if changing these would accomplish anything. However, I am not going to do any DIY, I'd rather send it out if I deem it a worthwhile expense.

This is my second Norma in a short while and I am starting to wonder if I need to sign up for some sort of breeding license? Now, I'd just need an 8x10 back and I would be set for life.

A secondary question - on the back standard there is no way to tighten down the fine focus - did this function change over time?