SWC shutter problem

[john_otway]

My SWC ( with synchro-compur lens )is misbehaving. It's been in storage for two

years, and in trying it out yesterday the following is happening:

1)Shutter and aperture rings are very stiff when uncoupled.

2)Shutter speed appears to work well from 1/500 down through 1/60, but 1/15

opens for about 1 1/2 seconds...1 second stays open for anything between 21

seconds to 57 seconds.

I need to use it next week. Will working the aperture/shutter rings

independently for a prolonged period loosen it up, or will it do more harm than

good; similarily the shutter speeds?

I need depth of field, so can't confine the speeds to 1/30 and higher.

[ebokeh]

i believe that at 1/15 (and slower) the shutter uses a different timing mechanism and it sounds as if that spring/mechanism is gummed up (technical term). Others may be able to shed more light on it.

 

I'd say you're probably fine to exercise it but it may not get you anywhere. regardless it sounds like it needs a little CLA (or maybe a little more).

 

I don't think that 'working the shutter and aperture rings' will do anything to fix this as it sounds like the lubrication simply dried up..

 

-john

ebokeh.com

[john_otway]

Many thanks.