Thanks Gary
Instructions sheets - now there's a luxury! Are all the typical mirror
lenses 'catadioptric' - I thought that only applied to those Vivitar style
'solid-cat' types?
I was puzzled that they would supply such a filter if it was not necessary
- it hardly serves a protective purpose, especially in those big lenses
where they slot in from the side. Implication - you need something there!
I can't imagine being able to use fixed diaphragm mirror lenses without at
least ND2X and 4X filters in your kit so Minolta are clearly deranged! That
was the first thing I bought to go with mine. Allowed me to take 800ISO
film and filter down, rather than slower film and giving up! The Tam. has
an 82mm front filter ring and I was chasing a polariser earlier this week
for it (missed!) but anything else goes up the clacker, as we say here so
charmingly.
AndrewF
>Only an instruction sheet with a catadioptric (mirror) lens can tell you
>for sure if it requires a "filter" in the optical path. But it is
>commonly encountered in telephoto and catadioptric lens designs with
>drop in filters. The Tamron filters screw into the rear of the Tamron
>SP catadioptric lens, so their need would be less obvious and I can't
>say for sure on those.
>
>The need for a filter can be a pain in the butt with used equipment. I'm
>waiting on a neutral drop-in filter for a Minolta AF 500mm f/8, before I
>can sell it. I also ordered a ND2X filter, which Minolta USA indicated
>was one of only two in stock and not to be replenished. Not a good sign
>for a lens still in production!
>
>Gary Reese
>Las Vegas, NV
>
< This message was delivered via the Olympus Mailing List >
< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
|