After 33 years of Pentax K, I have purchased a Graflex which came with a Polaroid back, so I have added a 6 by 9 120 film back.
The lens is a 1/4.7 ~ f/32 135 mm with a Wollensak shutter 1/400 to 1 sec and a rear shutter.
I am getting it ready step by step , so far it is cleaned up and I think it is in very good condition, I calibrated the rangefinder to the ground glass yesterday and learned all about head and shoulders inside a black tee shirt in the hot sun. It looks like the VF is correct for 6 by 9.
Next I will check the shutter speeds with a phototransistor and oscilloscope.
My enlarger is a 1955 vintage Federal condensor type which I have been using on 35 mm , and I now have a Rodenstock 1:4.5 90 mm lens for 6 by 9.
The old enlarger is all set up for 6 by 9 and I can make prints 8 by 10 inch.
I will be starting out with Ilford HP5 120 film and multigrade paper as I am used to those on 35mm.
My other hobby is home machining, I have a 1936 South Bend lathe. I have been making adaptors for Pentax K to M43 etc, I purchased some Whitworth threading tools from UK and I can now cut the Leica M39 Withworth threads.
Pleased to see the big quick-change lens board on the Graflex, ideal for adapting maybe a wider lens for 6 by 9 in the future.
I look forward to learning from this forum and viewing the shots.