Hi Bruce
Thanks for the clarification.
Speed does not seem to be such an issue with most of the photos I see from
you to let those fine A lenses go?
Greetings
Markus
 

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Bruce Dayton
Sent: Wednesday, April 18, 2007 5:59 PM
To: Pentax-Discuss Mail List
Subject: Re: Two questions

Yes, I suspect an assumption on your part.  No need to do mental
conversions in your head.  You put in the actual focal length of the
lens.

In my simple testing I found that for the A 35-105/3.5 and A 70-210/4
zooms, that SR worked markedly better when the correct focal length
was input to match the shooting focal length.  The downside to that is,
using zooms with SR is not as easy and quick as I would like.  It sort
of pushes me towards considering more modern ones.

-- 
Best regards,
Bruce


Wednesday, April 18, 2007, 8:47:04 AM, you wrote:

MM> I did it wrong then so far by telling SR 77mm for a  A 50mm macro  and
42
MM> for the 28mm?
MM> Did I overlook that in the manual or was it a simple stupid assumption
from
MM> my side?
MM> Could anybody tell me if that misunderstanding (if it is) would make a
MM> difference in the effectiveness of shake reduction?
MM> Greetings
MM> Markus


MM> -----Original Message-----
MM> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
MM> Godfrey DiGiorgi
MM> Sent: Wednesday, April 18, 2007 3:36 PM
MM> To: Pentax-Discuss Mail List
MM> Subject: Re: Two questions

>> --Setting SR with an A lens. Do you use the actual or the 1.5 FL. I
>> used the A 28 in Vegas for a few shots and set it at 28.

MM> At the optical focal length. It's a DSLR ... they've taken the focal
MM> length into consideration, not some ridiculous equivalence factor.

>> --Polerizers. Do you add EV to make up for the lost light or shoot
>> what the meter gives you.I used it a bit in Vegas and the +.3 shots
>> look good, even though the histogram was still quite a wasys from the
>> right.I used the Tav mode for 99% of shots. Asking as i rarely use
>> filters and i wound up bracketing a lot.

MM> Usually you can use what the meter says but polarizers can be funny...


MM> G



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