First curtain stops in picture frame
I am new to this forum and with the help of all the information I have found here I have serviced a 1961 Zorki 4 that failed on the low speeds. The only thing I did not dare to do was taking off the vf and rf to lubricate the top roller pivots. For the rest I have opened, cleaned and lubricated all.
The low speeds now work, but the first curtain stops too soon
, blocking about 4mm of the picture. Any suggestions to solve this?