Zenit TTL Shutter speeds incorrect

Spaghetta · Nov 30, 2015

Hey everyone,

Just ordered a Zenit TTL body and when I received it the Shutter speeds were incorrect. B does the same thing as 1/30, 1/60 is a little quicker but seems to be the same as 1/120(?) and 1/500 seems accurate. Not sure if anyone knows where to start with fixing this, but it sort of sucks to have problems right out of the box.

Thanks

summicron1 · Nov 30, 2015

one wonders if someone took the shutter speed knob off and put it on aligned to the wrong place...one speed off, as it were. Does it open at "B" anywhere on the dial? If so, set it to where the shutter acts as if the camera is set on B, then take the knob off and put it back on with B there.

trythis · Nov 30, 2015

I say this with sympathy: I hope you payed very little for it. If the simple solution above does not help then save yourself the trouble and stress of trying to repair a Zenit and return it if possible. If not returnable send to your local waste depository and buy something that is not a Zenit. Just remember to keep the lens.

Sent with typotalk

Spaghetta · Feb 22, 2016

summicron1 said:
one wonders if someone took the shutter speed knob off and put it on aligned to the wrong place...one speed off, as it were. Does it open at "B" anywhere on the dial? If so, set it to where the shutter acts as if the camera is set on B, then take the knob off and put it back on with B there.

Hello, sorry to reply so late. This does not fix the issue unfortunately

trythis said:
I say this with sympathy: I hope you payed very little for it. If the simple solution above does not help then save yourself the trouble and stress of trying to repair a Zenit and return it if possible. If not returnable send to your local waste depository and buy something that is not a Zenit. Just remember to keep the lens.

Since I have two of them I'm going to try and use this one for parts I did pay very little for it though and also got the case and body cap that I wanted

ic-racer · Feb 22, 2016

How are you using a home-made focal-plane shutter tester? Are you sure you photodiode spacing and math are correct?

Spaghetta · Feb 22, 2016

ic-racer said:
How are you using a home-made focal-plane shutter tester? Are you sure you photodiode spacing and math are correct?

Not using a tester, but they are very clearly incorrect. I also eye balled it against my other TTL at the time

ic-racer · Feb 22, 2016

Spaghetta said:
Not using a tester, but they are very clearly incorrect. I also eye balled it against my other TTL at the time

Usually the human eye would not be able to see the slit unless you are using some intermittent light source like a strobe light or cathode-ray-tube TV screen.

Spaghetta · Feb 22, 2016

ic-racer said:
Usually the human eye would not be able to see the slit unless you are using some intermittent light source like a strobe light or cathode-ray-tube TV screen.

I may very well be incorrect then, but they appear to very off

ic-racer · Feb 22, 2016

http://rick_oleson.tripod.com/index-208.html

Spaghetta · Feb 22, 2016

ic-racer said:
http://rick_oleson.tripod.com/index-208.html

Very interesting test, I actually happen to have a CRT lying around. I don't know if I'll be using a roll of film for this purpose but it's certainly good to know

Zenit TTL Shutter speeds incorrect

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