On Sat, Mar 22, 2014 at 9:45 PM, Rob Studdert distudio.p...@gmail.com wrote:
I bought the Sigma 17-70 2.8-4 a week ago when my Sigma 17-50/2.8 was
in for repair, I quite like it. It's pretty sharp, if it's not looking
great consider checking that it's actually focused, it may need some
focus
had a look at the Sigma 17-70 2.8-4 and the Pentax 17-70 4 today. The
Pentax unit was much much faster than the last unit for AF, about on
par with any of my other lenses but much quieter. The Sigma was $100
more and offered a 7 year warranty and f2.8 at the wide open end, and
AF was faster than
I bought the Sigma 17-70 2.8-4 a week ago when my Sigma 17-50/2.8 was
in for repair, I quite like it. It's pretty sharp, if it's not looking
great consider checking that it's actually focused, it may need some
focus adjustment.
On 23 March 2014 04:14, David J Brooks pentko...@gmail.com wrote:
Thanks for taking the time Mark C.
The lenses are in to inspect. Salesman tested both lenses on what ever
Pentax DSLR they have. Says the Pentax is better than the first one,
but the Sigma i =s much faster on the AF than the Pentax.
Time will tell Saturday
Dave
On Thu, Mar 20, 2014 at 8:44 PM,
above 50mm focal length,
hunting
forever while you try find the focus. Perhaps that's the problem you
spotted.
Dario
-Messaggio originale- From: David J Brooks
Sent: Wednesday, March 19, 2014 11:17 PM
To: Pentax Discuss
Subject: Pentax 17-70 f4 and SDM motor question
Hi all
I
Hi David -
I just tested my 17-70 @ 50mm indoors in dim light on a K-3. I tried
counting off the seconds one-thousand-one... but never got beyond
thous usually stopped a one... I can try it on a K-5 tonight,
but mine is very fast. And quiet.
Mark
On 3/19/2014 6:17 PM, David J Brooks
Message - From: Dario Bonazza
dario.bona...@virgilio.it
Subject: Re: Pentax 17-70 f4 and SDM motor question
Well, the DA* 50-135mm SDM is probably the slowest AF lens on Earth,
gaining it the nickname of the sloth. Generally speaking, SDM lenses are
slower than both screw-driven ad DC
: Re: Pentax 17-70 f4 and SDM motor question
Well, the DA* 50-135mm SDM is probably the slowest AF lens on Earth,
gaining it the nickname of the sloth. Generally speaking, SDM lenses are
slower than both screw-driven ad DC Pentax AF lenses, so the DA 17-70mm is a
good candidate for being another
* is
significantly slower than any of my screw drive lenses. Seems noticeably
faster - and definitely quieter.
Kenneth Waller
http://www.pentaxphotogallery.com/kennethwaller
- Original Message - From: Dario Bonazza
dario.bona...@virgilio.it
Subject: Re: Pentax 17-70 f4 and SDM motor question
On Thu, Mar 20, 2014 at 12:59 PM, Mark C pdml-m...@charter.net wrote:
Hi David -
I just tested my 17-70 @ 50mm indoors in dim light on a K-3. I tried
counting off the seconds one-thousand-one... but never got beyond
thous usually stopped a one... I can try it on a K-5 tonight, but
mine
I tested the 17-70 on my K-5. It was a *little* slower but I don't think
that I would have noticed if I had not been counting. The one thing I
noticed if that if the camera failed to achieve a focus lock and then I
tried to focus on a new subject, it took 1 to maybe 1.5 seconds to get a
lock.
Hi all
I went to pick up above mentioned lens this afternoon. loks and feel
nice on the K-5, however me thinks there is a problem.
I know the AF of Canon and Nikon are quite fast leaving us Pentaxians
hunting and pecking our way through landscapes and soccer photos, BUT,
2-3 seconds to lock on
originale-
From: David J Brooks
Sent: Wednesday, March 19, 2014 11:17 PM
To: Pentax Discuss
Subject: Pentax 17-70 f4 and SDM motor question
Hi all
I went to pick up above mentioned lens this afternoon. loks and feel
nice on the K-5, however me thinks there is a problem.
I know the AF of Canon
the problem you
spotted.
Dario
-Messaggio originale- From: David J Brooks
Sent: Wednesday, March 19, 2014 11:17 PM
To: Pentax Discuss
Subject: Pentax 17-70 f4 and SDM motor question
Hi all
I went to pick up above mentioned lens this afternoon. loks and feel
nice on the K-5
, 2014 11:17 PM
To: Pentax Discuss
Subject: Pentax 17-70 f4 and SDM motor question
Hi all
I went to pick up above mentioned lens this afternoon. loks and feel
nice on the K-5, however me thinks there is a problem.
I know the AF of Canon and Nikon are quite fast leaving us Pentaxians
hunting
Sent: Wednesday, March 19, 2014 11:17 PM
To: Pentax Discuss
Subject: Pentax 17-70 f4 and SDM motor question
Hi all
I went to pick up above mentioned lens this afternoon. loks and feel
nice on the K-5, however me thinks there is a problem.
I know the AF of Canon and Nikon are quite fast
: Pentax 17-70 f4 and SDM motor question
Hi all
I went to pick up above mentioned lens this afternoon. loks and feel
nice on the K-5, however me thinks there is a problem.
I know the AF of Canon and Nikon are quite fast leaving us Pentaxians
hunting and pecking our way through landscapes
The 17-70/4 that Pentax loaned me earlier this year was very fast to lock on
focus with the K-3. Almost instantaneous in good light and quite fast even in
dim light.
Paul
On Mar 19, 2014, at 6:17 PM, David J Brooks pentko...@gmail.com wrote:
Hi all
I went to pick up above mentioned lens
spotted.
Dario
-Messaggio originale- From: David J Brooks
Sent: Wednesday, March 19, 2014 11:17 PM
To: Pentax Discuss
Subject: Pentax 17-70 f4 and SDM motor question
Hi all
I went to pick up above mentioned lens this afternoon. loks and feel
nice on the K-5, however me thinks
Thanks Paul. I
d be happy if it focused as well as my 50-200 which is not like the
70-200 Nikon but its fast enough for me. This copy was so slow it
would be useless unless doing still life's.
Dave
On Wed, Mar 19, 2014 at 7:23 PM, Paul Stenquist pnstenqu...@comcast.net wrote:
The 17-70/4 that
- From: David J Brooks
Sent: Wednesday, March 19, 2014 11:17 PM
To: Pentax Discuss
Subject: Pentax 17-70 f4 and SDM motor question
Hi all
I went to pick up above mentioned lens this afternoon. loks and feel
nice on the K-5, however me thinks there is a problem.
I know the AF of Canon
dario.bona...@virgilio.it
Subject: Re: Pentax 17-70 f4 and SDM motor question
Well, the DA* 50-135mm SDM is probably the slowest AF lens on Earth,
gaining it the nickname of the sloth. Generally speaking, SDM lenses are
slower than both screw-driven ad DC Pentax AF lenses, so the DA 17-70mm
22 matches
Mail list logo
