
Posted: Tue Feb 16, 2021 8:29 pm
| Quote: |
| I'm having a tough time replacing and calibrating the the mirror in my Kalart side mounted rangefinder on my Century Graphic 23. |
The Kalart manual is available at
https://graflex.org/speed-graphic/kalart-manual.html and a better copy at
https://drive.google.com/file/d/0B1sPJkp-Mdghc0FwQkRuWEhFZEE/view?usp=sharing
IF it does not want to adjust then fully disassemble it taking pictures as you go, clean in 90% Isopropyl Alcohol, apply a trace of machine oil (not 3in1 or WD40) on the pivots and a trace of light grease on the sliding parts. A trace is a just detectable sheen, more will act like glue.
The Kalart uses a 50/50 beamsplitter that the coating can go bad on requiring replacement. Ebay and
https://www.edmundoptics.com/ are two sources. You may have to cut it to size. New materials are thinner than the original and will require shimming to fit.
You can read the Kalart info at
https://lommen9.home.xs4all.nl/kalartmain/index.html but take the info with a grain or two of salt.
Another thread on beamsplitters
https://www.photrio.com/forum/threads/replacement-beam-splitter-glass.177690
You can send it to me if all else fails.