From: Bojidar Dimitrov [EMAIL PROTECTED]
Hi,
a question to the optical-formula gurus. Pentax describes the optics of
this mirror lens as 6 elements in 4 groups. Looking at the diagram that
they provide us, I see 8 elements. I will number them 1 through 8 when
looking from left to
Just make sure the focus is set properly when you see
Prince Charles, Britney Spears and Boy George having a
threesome in Buckingham Palace with the curtains wide
open :)
Is there anybody that actually owns one of these? I
often though of getting one and starting up my on
little domestic spy
Hi,
a question to the optical-formula gurus. Pentax describes the optics of
this mirror lens as 6 elements in 4 groups. Looking at the diagram that
they provide us, I see 8 elements. I will number them 1 through 8 when
looking from left to right. 1 and 2 as well as 5 and 6 seem to be forming
Hello,
about this lense, how good would this make a LX with SD-11 clear for
astrophotopgrahy ? equivalent of this would be 5.8" mirror Smith
Cassegrain. and a 24x36mm eye-piece...
what type of TC could be used with this lense ?
Philippe
Hi,
a question to the optical-formula
William wrote:
Is there anybody that actually owns one of these? I often though of getting one and
starting up my on little domestic spy business. You could do some neat things with
it and some 3200 ASA BW film!
If you can focus it! I had troubles with the 1000/11. Try to stop down any
on 4/19/01 11:16 AM, O'Neill, William at William.O'[EMAIL PROTECTED] wrote:
Is there anybody that actually owns one of these? I often though of getting
one and starting up my on little domestic spy business. You could do some
neat things with it and some 3200 ASA BW film!
-
This message
Pl said:
If you can focus it! I had troubles with the 1000/11. Try to stop down any lens to
F:11 and try focusing it. A 2000mm will be 10 times worse; remeber the focusing
accuracy involved. Its pretty much hopeless in my experience. Focusing bracketing is
mandatory.
I say:
Yes, but Pl, in
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