TDDZ> mirror lens just projects a darker image on the focusing screen compared
to
TDDZ> the "rocket launcher".
Is the exposure between them really the same? Due to the central
mirror obstruction, many catadioptric lenses have reduced true speed
compared to a refractive lens, unlike the f/number w
At 20:53 17/01/05, Carlos wrote:
You say you use your 600/8 with a 1.7x converter. Is that combo as
difficult to focus as it may seem?
Surprisingly, not at all, provided of course the weather isn't too bad. I
still can't figure out why the Novoflex (even with converter) is easier to
focus than m
The Diabolical Dr Z escribió:
(lots of interesting and meaningful information snipped)
Hope this helps,
Z.
Sure it does, Dr Z. Lots of food for thought. And the link you have
provided are just what I wanted to see to evaluate the possibilities of
such kind of lenses.
You say you use your 600/8
I used to have an acquaintance, (I'd hesitate to call him a friend), at
College, (University to those outside the US), who used to wander around
campus with a Novaflex 600mm follow focus, (IIRC though it might have
been an 800mm, it's been a long time), and gunstock with Nikon F
attached. His
Sun, 16 Jan 2005 22:25:43 +0100
From: Carlos Royo <[EMAIL PROTECTED]>
To: "pentax-discuss@pdml.net"
Subject: Novoflex tele lenses
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
As some people around h
Daniel Papic escribió:
Hi Carlos.
I had an Novoflex 400/5,6, i think the version is called T2 (2 lenses
inside). That version was quite sharp, at lesast in the middle, if you
also compare with the price. For me it´s a better lens than comparable
Tokina SD 400 and Sigma. A great solution for me
Thank you for your comments, Herb. As I have written in other message in
this thread, the Sigma AF I had was low in contrast and high in flare,
the F* 300 mm. 4.5 is much better, in fact it is as sharp as the F 50
mm. 1.7 or the FA 35 2.0
I have used the Pentax F 1.7x converter with the 300 mm.,
From: Carlos Royo <[EMAIL PROTECTED]>
Reply-To: pentax-discuss@pdml.net
To: "pentax-discuss@pdml.net"
Subject: Novoflex tele lenses
Date: Sun, 16 Jan 2005 22:25:43 +0100
As some people around here are much more knowledgeable than me about long
lenses, I would like to know thei
yer for the A* lens before i would make the switch.
Herb...
- Original Message -
From: "Joseph Tainter" <[EMAIL PROTECTED]>
To: "pdml"
Sent: Sunday, January 16, 2005 8:57 PM
Subject: Re: Novoflex tele lenses
> "i have a FA* 400/5.6 and an A* 400/2.8
"i have a FA* 400/5.6 and an A* 400/2.8 which is mostly used with the
1.7AF adapter. both are used on the *istD."
Herb, how do you find the performance of these on the D?
Thanks,
Joe
eed as long. an
alternative to the 600 is a very good spotting scope, but at a large amount
of light loss. think f11-f13 range for most scopes.
Herb...
- Original Message -
From: "Carlos Royo" <[EMAIL PROTECTED]>
To:
Sent: Sunday, January 16, 2005 4:25 PM
Subject: Novoflex tele l
As some people around here are much more knowledgeable than me about
long lenses, I would like to know their thoughts about the performance
of the follow focus tele lenses made by Novoflex. I have only used a
Sigma 400 5.6 AF, which I sold to a list member years ago, and the
excellent F* 300 mm
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