raid
Dad Photographer
What is the cure for slow speeds being off in such a camera other than the typical "send it to so and so"?
Raid
Raid
Slow Speeds Off: Canon IVsb ... now what?
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John Shriver
Well-known
Play with the shutter curtain tensions, and force the shutters through the decayed oil and caked grease that is slowing them down. You can get the speeds right that way, for a while. Of course, this will destroy the bearings or fatigue the springs, and then you'll have a parts camera...
Hey, with a Fed or a Zorki, I'd say go play with the shutter curtains. But on a nice camera like a Canon IVsb, nope.
The wrong high shutter speeds are the "it's time for a CLA" notice.
Yes, you can learn to clean and lube your own Barnack camera, even replace the curtains. I've done it, but the shutter curtain part is tricky, in terms of getting them in EXACTLY the right place on the drums. I need to do my IV-SB2 again with thinner curtain cloth. But my IIF came out fine, as has my Leica IIIa.
Get the National Camera Leica books, and Thomosy's Leica book. There's also a Canon repair manual available, which is nice. But you need a good dose of mechanical intuition, and an affection for good tools.
Hey, with a Fed or a Zorki, I'd say go play with the shutter curtains. But on a nice camera like a Canon IVsb, nope.
The wrong high shutter speeds are the "it's time for a CLA" notice.
Yes, you can learn to clean and lube your own Barnack camera, even replace the curtains. I've done it, but the shutter curtain part is tricky, in terms of getting them in EXACTLY the right place on the drums. I need to do my IV-SB2 again with thinner curtain cloth. But my IIF came out fine, as has my Leica IIIa.
Get the National Camera Leica books, and Thomosy's Leica book. There's also a Canon repair manual available, which is nice. But you need a good dose of mechanical intuition, and an affection for good tools.
raid
Dad Photographer
John: All speeds faster than 1/25 work well. It is not a total write-off yet since the slow speds and the fast speeds have separate selectors or am I mistaken here?
Raid
Raid
raid
Dad Photographer
I found a gentleman with expertise in the area needed.
