I know about Contax, I've even tested it years ago. AX autofocus wasn't
simply slow, it was a disaster. Still it doesn't mean that in-body AF
couldn't be done better - especially if we consider that instead of film
mechanism there's only a sensor to move. After all, weight comparison
between
Margus,
Given the amount of travel in some of my lenses,
I think the idea is a non-starter.
Digital cameras are too thick now.
This would only make it worse.
Regards, Bob S.
2010/11/12 Margus Männik mar...@eol.ee:
I know about Contax, I've even tested it years ago. AX autofocus wasn't
simply
How much throw of the sensor would you need to focus? a few cm? I
wonder if you could actually sell fixed focus lenses (hyper-focal
point, infinity, etc.) and let the sensor. If you could move the
sensor fast enough, would there be any lens advantage? A fixed focus
prime could be sealed
On Fri, Nov 12, 2010 at 12:06 PM, Steven Desjardins drd1...@gmail.com wrote:
How much throw of the sensor would you need to focus? a few cm?
It's the same as adding extension tubes; the answer depends on the
focal length of the lens, and how close you want to focus. If you want
to achieve 1:1
The issue becomes the fact that film is FAR more forgiving of
alignment errors than digital. Not to mention the fact that the AF
sensor Refle mirror needs to move with the imaging sensor and that
essentially dictates the shutter has to move too. Add the fact that
wider lenses require far smaller
A japanese member of pentaxforums said thr 135-1.8 looked much like
the special versions made for japanese army (50/1.2 at least were made
such according to him).
2010/11/10, Dario Bonazza dario.bona...@virgilio.it:
Jaume Lahuerta wrote:
Please, tell me if I am too tedious with this:
Want some crazy suggestion? ;)
Future Pentax bodies will have in-body autofocus. It's much faster to
move a light sensor than tons of glass. And you'll have AF with any
K-mount lens (and others that you can mount via adapters) ever produced.
Great, isn't it? Why it still has a focus-ring...
2010/11/11 Margus Männik mar...@eol.ee:
Want some crazy suggestion? ;)
Future Pentax bodies will have in-body autofocus. It's much faster to move a
light sensor than tons of glass. And you'll have AF with any K-mount lens
(and others that you can mount via adapters) ever produced. Great, isn't
I think Contax tried that. Pentax is here Contax is gone. Casualty
isn't guaranteed but it's the way to bet.
On 11/11/2010 4:28 PM, Margus Männik wrote:
Want some crazy suggestion? ;)
Future Pentax bodies will have in-body autofocus. It's much faster to
move a light sensor than tons of
Jaume Lahuerta wrote:
Please, tell me if I am too tedious with this:
http://k-rumors.com/pentax-lens-group-foto-unveils-new-lenses/
Not tedious at all. Please keep this stuff coming!
That's a nice intriguing mix of old new stuff! I believe that 135 to be an
old prototype lens, unsure if
From: Steve Sharpe
At 3:32 PM -0800 11/9/10, Jaume Lahuerta wrote:
Please, tell me if I am too tedious with this:
http://k-rumors.com/pentax-lens-group-foto-unveils-new-lenses/
Strange that it has an aperture ring.
Looks a whole lot like the one on B Dimitrov's site to me.
Only
From: John Celio
What an amusingly strange collection of lenses! The 135 is certainly
intriguing, since it looks pretty different from the original version.
I wonder if it's some sort of special/limited release?
Those two odd lenses behind the 35 macro must either be something new,
in
On Wed, Nov 10, 2010 at 9:24 PM, John Sessoms jsessoms...@nc.rr.com wrote:
I can't identify many of them, but the one immediately to the right of the
135f1.8 looks like a Pentax 67 lens, and I found a Pentax 67 100mmf4 Macro
lens that it might be.
That would be consistent with the 67 to K
Hmmm. It's marked Pentax A*. Doesn't sound like a new lens. But I'd like a
135/1.8. Great lens for shooting performs in clubs.
Paul
Oh, and keep the rumors coming. They're not the least bit tedious.
On Nov 9, 2010, at 6:32 PM, Jaume Lahuerta wrote:
Please, tell me if I am too tedious with
At 3:32 PM -0800 11/9/10, Jaume Lahuerta wrote:
Please, tell me if I am too tedious with this:
http://k-rumors.com/pentax-lens-group-foto-unveils-new-lenses/
Strange that it has an aperture ring.
--
Steve Sharpe
d...@eastlink.ca
http://earth.delith.com/photo_gallery.html
--
PDML
On 10/11/10 10:53 AM, paul stenquist wrote:
Hmmm. It's marked Pentax A*. Doesn't sound like a new lens. But I'd like a
135/1.8. Great lens for shooting performs in clubs.
Paul
Oh, and keep the rumors coming. They're not the least bit tedious.
On Nov 9, 2010, at 6:32 PM, Jaume Lahuerta wrote:
Pretty damn close. I'd guess that the lens in the photo posted by Jaume is a
PhotoShopped version of the old A* lens. Can't see why Pentax would bo back to
an A* designation. It doesn't appear to be a contemporary lens in any way.
Paul
On Nov 9, 2010, at 7:10 PM, Phil Northeast wrote:
On
What an amusingly strange collection of lenses! The 135 is certainly
intriguing, since it looks pretty different from the original version.
I wonder if it's some sort of special/limited release?
Those two odd lenses behind the 35 macro must either be something new,
in prototype form, or somehow
Even more likely is it's an old protorype of the A* 135 given that the
finish resembles the old A* super-tele's.
-Adam
On Tue, Nov 9, 2010 at 7:45 PM, paul stenquist pnstenqu...@comcast.net wrote:
Pretty damn close. I'd guess that the lens in the photo posted by Jaume is a
PhotoShopped
On 11/10/2010 1:32 AM, Jaume Lahuerta wrote:
Please, tell me if I am too tedious with this:
http://k-rumors.com/pentax-lens-group-foto-unveils-new-lenses/
I have enough lenses, thank you so much, sir. And then I have some more
lenses...
Boris
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