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Canon 800mm f3.8 lens??


IanA 11 3.0k 12 England
12 Dec 2004 9:34PM
Here's one to interest all of you dedicated Canonites!!
Canon 800mm
Quite a bargain at present exchange rates.
Wink)

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mattw 10 5.2k 10 United Kingdom
13 Dec 2004 12:23AM
Criky...Somebody stop me!

Mattw
keithh e2
10 23.2k 33 Wallis And Futuna
13 Dec 2004 12:25AM
Woof woof.
deviant 10 3.0k 1 United Kingdom
13 Dec 2004 12:56AM
At that price I'll have several as standby christmas presents for people I may have forgotten!
Not...
UserDeleted 11 3.6k
13 Dec 2004 1:26AM
It's a telescope....

at 15Kg's, and focus with a bellows unit it is not much use as anything else.

For that money you could get a 600mm f/4, and I know what I would rather have...

Mike
collinf 11 1.2k
13 Dec 2004 1:30AM
Um, f3.8?

I notice there's also the dreaded red x for the picture...
UserDeleted 11 3.6k
13 Dec 2004 1:51AM
Most of these mirror lenses are f/8 fixed...I can't imagine why Canon made this one with a variable aperture...

Mike
IanA 11 3.0k 12 England
13 Dec 2004 2:35AM
or why it is displayed featuring a Nikon camera!!
Wink)
sabretalon 10 1.9k United Kingdom
13 Dec 2004 2:44AM
I think that was the same guy that sold a set up from a spy plane, camera and lens in an armoured box.

Do you think it would be OK to handhold? LOL

Knock out all the glass and it doubles up as a waste paper bin! LOL
ZenTog 12 7.9k 1 England
13 Dec 2004 3:00AM
ERRRRRRRRRRRRRR ITS A MIRROR LENS SO NOT FAST AND NOT CLEVER AT ALL ESP FOR THAT KIND OF MONEY WILL BUY A 600MM F4 IN THE STATES, SAW A GUY USING A MIRROR 500MM WITH A 2X CONVERTOR ONE WEEK AT THE BEACH THEN COMPLAINING HIS SHOTS WERE SOFT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
What's the shouting for?

Ashley
LAF 11 1.7k
13 Dec 2004 7:57AM
Not fast or clever? Not clever maybe but f3.8 at that focal length certainly IS fast. And if the manufacturers could get their R&D together mirror lenses could be a lot sharper than multi element glass optics. I doubt we'll see them for a while though, serious issues with aperture/focus control, fine in the Hubble where it's manufactured set to infinity, not so good in the back yard...
chris.maddock 13 3.4k United Kingdom
13 Dec 2004 8:10AM
Actually Hubble wasn't manufactured set to infinity, although it was designed to be - that's why they had to send a team up to fit it with specs Wink

Amazing what the result of one chip in the paint on a test rig can produce.

KRs
Chris
ZenTog 12 7.9k 1 England
13 Dec 2004 9:03AM
Ashley forgot to turn off the caps lock on the key board but mirror lenses make me SHOUT anyway!!!!!!
ZenTog 12 7.9k 1 England
13 Dec 2004 9:08AM
but at 3.8 at that bulk and size makes my 600f4 look svelt
also no auto focus etc never catch on except for astrology
buffs maybe

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