RB67 - slow and sticky lens?

rayonline_nz · May 18, 2017

I have the original 90mm F3.8. When it is on T mode - using two cable releases. After I up the mirror and fire off the lens there is a delay before the aperture blades close down. It sounds like a a 35mm camera self timer before the aperture blade does its thing. Is this normal or an issue?

Doesn't happen with faster shutter speeds. It does happen with 1/8 or slower but that is ok because once it releases it does its thing.

I have a 50mm C lens and it doesn't do this at T mode.

Cheers.

Sirius Glass · May 18, 2017

It sounds like it is time for a CLA.

paul ron · May 18, 2017

CLA... sounds like gunked up lube.

rayonline_nz · May 21, 2017

Ok thanks for a 90mm original lens it's probably not economical to do right ...

paul ron · May 21, 2017

if you can replace it for less than the cost of the cla, why not try to diy? if you fail, get a relacement?

cla usually goes for around $100 or so plus shipping.

David T T · May 21, 2017

I have to say that I'm not feeling the replace rather than CLA philosophy, unless it's simply not financially feasible. It's a waste to throw out a "forever" lens on a "forever" camera, and then do it all over again when the replacement lens in turn needs CLA. To me, that's the whole point of having the C lenses rather than the objectively superior KL lenses with their plastic parts. I want a forever camera, and to have at least one tool that's not disposable.

Typed on my S7, lol.

RB67 - slow and sticky lens?

rayonline_nz

Sirius Glass

paul ron

rayonline_nz

paul ron

David T T

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