I have a 500 mm F8 Seimar
Long and light, I've had it apart several times, greasy stuff or loads of
dust inside, I can't get to one lens surface on the inside and the larger
front one, I am assuming I only needed the middle of the lens to be in great
shape (using a E-500) and each cleaning seems to improve it, it was way to
blurry the first time and the oily shit on the inside of the front lens was
exceptionally visible.
$41 after shipping, so I am keeping my beefs about it down.
But.... I can't find any references about it anywhere. The fella that sold
it to me told me it was a great lens and I knew he was lying the minute I
saw grease and dust on the inside....... but it hasn't been as ad as my
first impression was.
So I have been watching all the other 500 mm F8 lens's to see if one of them
looks like mine.
Are there any suggestions on how to get a cleaning lens cloth into the small
end of the inside of this?
-----Original Message-----
From: olympus-owner@xxxxxxxxxx [mailto:olympus-owner@xxxxxxxxxx] On Behalf
Of Jeff Keller
Sent: Monday, February 19, 2007 8:51 PM
To: olympus@xxxxxxxxxx
Subject: [OM] Re: New Person to the group
The Vivitar Series 1 600mm f8 solid cat lens is a T-mount lens. With
the right T-adapter you can mount it to just about any SLR. They are
quite small but a solid chunk of glass is heavy.
I had difficulty focussing the 800mm f11 solid cat using an OM. I
haven't even tried it on an E-camera. Keep in mind that with the cat
lenses you are taking the photo at the same aperture you are focusing
at. Your focusing has to be just about perfect or the shot is wasted.
In the early 70's there were a number of roughly 500/8 T-mount
refractor lenses that were sold quite cheap. Spiratone, Cambron, and
?. They actually had fairly good performance. They weren't very heavy
but they were physically long. I've seen a few sold on yaBe for less
than $50. If you have access to any long manual focus telephotos, you
should try to focus one at f8 or f11.
I don't remember if Moose provided this link in his earlier reply:
http://brashear.phys.appstate.edu/lhawkins/photo/mp-cat-tests.txt
-jeff
On 2/19/07, Allen Coltrin <hjlantern@xxxxxxx> wrote:
>
> So no to these ?:
>
> Contax/ Yashica 500/8 Sigma-XQ Mirror
>
> Tokina 500mm 1:8 Lens for Canon 35mm Camera w/2 filters
> 1000 mm F 13.5 Sigma Manual Focus Lens For Canon SLR
> 1000mm telephoto lens f EOS 5d 10d 20d XT ELAN 30d
>
> 600mm solid cat lens canon EF Minolta Maxxum Nikon Sony
>
> Not sure on this one:
>
> 500 mm f8 / 1000mm f11 lens for Minolta XD/XG SRT MC/MD
>
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