Vivitar extension tubes for manual Nikon

Earlier this year, I bought an interesting set of 3 Vivitar extension
tubes for my FM3a that can best be described as "semi automatic". I
could compose and focus with the lens aperture full open, then the
blades would snap down the instant the shot was taken. So they were
automatic in this respect. But the camera's meter didn't know what
aperture the lens was set to. I had to do "stop down" metering or use
a hand-held meter. Another thing was that the smallest of the 3 tubes
refused to screw onto the FM3a, so I could only use it in combination
with another tube.

Anyway, the tubes were recently stolen. I will need to replace them,
but I think I'll stay away from Vivitar unless they have a set of
better tubes. Has anyone else seen this type of behavior? Thanks.

Bob C.

"Bob C" wrote in message
om...
Earlier this year, I bought an interesting set of 3 Vivitar extension
tubes for my FM3a that can best be described as "semi automatic". I
could compose and focus with the lens aperture full open, then the
blades would snap down the instant the shot was taken. So they were
automatic in this respect. But the camera's meter didn't know what
aperture the lens was set to. I had to do "stop down" metering or use
a hand-held meter. Another thing was that the smallest of the 3 tubes
refused to screw onto the FM3a, so I could only use it in combination
with another tube.

Anyway, the tubes were recently stolen. I will need to replace them,
but I think I'll stay away from Vivitar unless they have a set of
better tubes. Has anyone else seen this type of behavior? Thanks.

Bob C.

I would have returned the tubes if they didn't function properly. Just my
..02
me

"Bob C" wrote in message
om...
Earlier this year, I bought an interesting set of 3 Vivitar extension
tubes for my FM3a that can best be described as "semi automatic". I
could compose and focus with the lens aperture full open, then the
blades would snap down the instant the shot was taken. So they were
automatic in this respect. But the camera's meter didn't know what
aperture the lens was set to. I had to do "stop down" metering or use
a hand-held meter. Another thing was that the smallest of the 3 tubes
refused to screw onto the FM3a, so I could only use it in combination
with another tube.

Anyway, the tubes were recently stolen. I will need to replace them,
but I think I'll stay away from Vivitar unless they have a set of
better tubes. Has anyone else seen this type of behavior? Thanks.

Bob C.

I would have returned the tubes if they didn't function properly. Just my
..02
me

I would have returned them except I got them dirt-cheap on Ebay.

Bob C.

I would have returned the tubes if they didn't function properly. Just my
.02
me

Suggest you just buy a set of extension tubes off ebay (the old manual ones).
You really want to meter at the taking aperture anyway because that's the only
true way of knowing your exposure.

dan