Henning,
I use an old (60's-70's) Novoflex 5.6/400mm Noflexar with
"squeeze-focussing" on both Pentax and Canon Dslr.
Same results as Telyt and any adapter still available from Novoflex!
Bart.
----- Original Message ----- From: "Henning Wulff"
<henningw@xxxxxxxxxxxxxx>
To: <leica@xxxxxxxxxxxxx>
Cc: "SeePhoto Mailing List" <seephoto@xxxxxxxxxxxx>
Sent: Monday, January 15, 2007 4:43 AM
Subject: Re: Leica Telyt & adapters
At 1:01 PM -0500 1/14/07, Michael Levy wrote:
My 50-200 Pentax is OK,. but not quite long enough. I have been
amazed at the Leica Telyt images I've seen and may start looking for
one. BUT I have some questions:
1) I can get Visolfelx mounts and R mounts what is the difference
and does it matter if it is a 3-cam or not, as i will be using this
on a Pentax DSLR.
I don't think you get infinity focus with a Leica-R lens adapted to
Pentax. Go with the Visoflex models.
2) I suppose it will be a manual focus deal -- which is fine, I am
still capale of doing that,
The slide focus of the f/6.8 lenses will work quite well on the
Pentax DSLRs, which have some of the better screens of the APS size
sensor cameras. These lenses are just as good wide open as stopped
down, so only stop down if you really, really need just a little more
depth of field. There isn't much, even at f/32, and the lens isn't as
good at f/32, so try to avoid that. Focussing at f/8 or 11 is quite
easy, and is probably better for the most than focussing wide open
and then stopping down to shoot. There is some focus shift as you
stop down.
3) what about adapters, who makes them and where do I find them-- I
know a lot of you are using these lenses on Canons....
I don't have a line on Viso to Pentax right now, but I know that they
are/were being made. I've seen Viso to Pentax screw thread firsthand.
4) As the camera has an aps-sized sensor a 400 mm tely would have
an (apparently) longer reach-- more like 550. I assume the 560
Telyt would be more like an 800 mm.... any thought or ideas on this?
I'd probably use my Bogen tripod, even tho the camera has an
anti-shake system built in
On a Pentax, with a factor of just over 1.5, you'll get 600mm
equivalent field of view from the 400. With an ISO of 400 or more,
you're in fine shape. I shot a lot with this lens on Kodachrom 25 and
64. The high ISO performance of digital makes using these a snap.
Consider these to be primarily handheld devices. That's were they
shine. Quite light, and you can follow focus birds in flight better
than with any AF system, in my experience. They can be used on a
tripod, but wide open handheld they are unique.
Finally i know nothing about these lenses and fheir max apertures.
some seem to be f/5.6 tops, is that true of all telytrs? Thars sure
fast enough for outdoor bird photography, I'd think.
The ones to consider at this time are the f/6.8 lenses. Fast enough,
but most importantly light enough to handhold. They are the last Viso
Telyts.
Any help apprecited,
Mike Levy
--
* Henning J. Wulff
/|\ Wulff Photography & Design
/###\ mailto:henningw@xxxxxxxxxxxxxx
|[ ]| http://www.archiphoto.com
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