Charles Robinson wrote:
> On Nov 26, 2007, at 2:58, Toralf Lund wrote:
>
>> I've also suspected (or experienced) that the Pentax AF isn't really
>> as
>> slow as some would have it, or not slow at all in relative terms if
>> you
>> compare fairly (as Mr Robb points out), but that's a differe
On Nov 26, 2007, at 2:58, Toralf Lund wrote:
> I've also suspected (or experienced) that the Pentax AF isn't really
> as
> slow as some would have it, or not slow at all in relative terms if
> you
> compare fairly (as Mr Robb points out), but that's a different issue.
>
I was at a family funct
- Original Message -
From: "Toralf Lund"
Subject: Re: Sigma HSM lenses for Pentax KAF mount
>
> I've also suspected (or experienced) that the Pentax AF isn't really as
> slow as some would have it, or not slow at all in relative terms if you
> compa
[ ... ]
>
> OK, I also have a question: what's the advantage of ultrasonic motors? I'm
> interested in AF speed, since I've had a lot of trouble with my camera and
> it's kit lens (annoying AF hunting or even impossible AF in not-so-low :(
> light).
>
It's sort of been pointed out by myself a
Inner Focus wrote:
> Yes, interesting posts by the engineer who started that thread. The
> conclusion is that ultrasonic motors CAN be faster, it's just that Pentax
> have chosen a poor implementation (SDM) which doesn't make full use of the
> technology, and thus it's results are far from optim
- Original Message -
From: "Inner Focus"
Subject: Re: Sigma HSM lenses for Pentax KAF mount
> Yes, interesting posts by the engineer who started that thread. The
> conclusion is that ultrasonic motors CAN be faster, it's just that Pentax
> have chosen a
hey should have chosen a ring-type
motor instead of a micromotor).
A. M.
- Original Message
> From: Joseph Tainter <[EMAIL PROTECTED]>
> To: pdml@pdml.net
> Sent: Saturday, November 24, 2007 8:06:11 PM
> Subject: Re: Sigma HSM lenses for Pentax KAF mount
>
> Bill
On 11/24/07, Joseph Tainter <[EMAIL PROTECTED]> wrote:
> 1. Before getting the two DA* lenses, I had not realized how much I rely
> on audible feedback to know when an AF lens has locked focus. Now I
> know. In bright light I often can't see the focus indicator in the
> viewfinder. I would like to
On Nov 24, 2007 8:07 PM, Joseph Tainter <[EMAIL PROTECTED]> wrote:
> I would like to have the option of getting that audible
> feedback. And, no, I won't turn the focus confirmation beep back on.
Really? I wonder why... this is such an essential feature ... xD
> 2. In 10 or 15 years, when Penta
Bill wrote:
"OK, I also have a question: what's the advantage of ultrasonic motors?
I'm interested in AF speed, since I've had a lot of trouble with my
camera and it's kit lens (annoying AF hunting or even impossible AF in
not-so-low :( light)."
Interesting discussion here:
http://forums.dpre
Correction: The original poster wrote that paragraph, not Bill.
Joe
-
Bill wrote:
"OK, I also have a question: what's the advantage of ultrasonic motors?
I'm interested in AF speed, since I've had a lot of trouble with my
camera and it's kit lens (annoying AF hunting or even impossible AF i
- Original Message -
From: "Inner Focus"
Subject: Sigma HSM lenses for Pentax KAF mount
OK, I also have a question: what's the advantage of ultrasonic motors? I'm
interested in AF speed, since I've had a lot of trouble with my camera and
it's kit len
On 24/11/07, Inner Focus, discombobulated, unleashed:
>Hello, I'm new on this list.
This may help.
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Cotty
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On Nov 24, 2007, at 6:42 AM, Inner Focus wrote:
> PS: is HTML formatting of emails allowed on this list?
No, the list allows plain text only.
Godfrey
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Inner Focus wrote:
> Hello, I'm new on this list. Since I've seen some people curious about Sigma
> plans for the future, I decided to share the following with you.
>
>
>
> I was interested in buying a few Sigma lenses for my Samsung GX-1S, so I
> mailed the USA, UK and France Sigma representativ
Hello, I'm new on this list. Since I've seen some people curious about Sigma
plans for the future, I decided to share the following with you.
I was interested in buying a few Sigma lenses for my Samsung GX-1S, so I mailed
the USA, UK and France Sigma representatives asking them if they plan t
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