Hello John, Certainly the A and earlier zooms have the problem of not transmitting the focal length in use. When I briefly tested my Sigma 100-300/4 EX, the EXIF did indicate the correct focal length of the images I shot, so I'm guessing it would properly transmit for the SR. But the age of the lens could have some impact for earlier 3rd party lenses.
-- Bruce Saturday, November 25, 2006, 3:21:57 AM, you wrote: >> I personally would not buy a pre-AF zoom lens again, however, >> particularly for the K100D or K10D bodies, as without the focal >> length information transmitted from lens to body, obtaining benefit >> from the antishake technology is a bit more of a pain than I would >> be interested in. It's ok to set a focal length for a prime, a pain >> when the point of using a zoom is convenience in rapidly changing >> circumstances. JW> That never occurred to me until you mentioned it, that could have some JW> serious consequences. I'm not to bothered by the M & A zooms, I only have JW> four M 24-35, M 35-70, A 35-105 and A 70-210. But if the Sigma 70-200/2.8 EX JW> doesn't communicate the correct information it's going to be a right PITA, JW> same goes for the Tamron 28-75 XR Di to a lesser extent. I'd be left with FA JW> 28-105 power zoom and FA 80-320 zoom. What about using rear converters? Like JW> the F 1.7x and the Sigma EX converters. JW> John JW> John Whittingham JW> ---------- Original Message ----------- JW> From: Godfrey DiGiorgi <[EMAIL PROTECTED]> JW> To: Pentax-Discuss Mail List <[email protected]> JW> Sent: Fri, 24 Nov 2006 07:08:41 -0800 JW> Subject: Re: AW: Reservations about DA 16-45 >> I don't use zooms very much, but I have had excellent results with >> the FA28-105/3.2-4.5 AL IF, the F100-200/4.5-5.6, the A70-210/4 >> Macro, the A35-70/4, the F35-70/3.5-4.5 Macro and the FA20-35/4 AL. >> That last is my favorite zoom lens of all, and I use it a lot >> (relatively speaking). >> >> I don't buy much third party glass. >> >> I personally would not buy a pre-AF zoom lens again, however, >> particularly for the K100D or K10D bodies, as without the focal >> length information transmitted from lens to body, obtaining benefit >> from the antishake technology is a bit more of a pain than I would >> be interested in. It's ok to set a focal length for a prime, a pain >> when the point of using a zoom is convenience in rapidly changing JW> circumstances. >> >> Godfrey >> >> On Nov 23, 2006, at 6:59 PM, Markus Maurer wrote: >> >> > makes me wonder what Pentax M or A or third party zoom gives the best >> > results on a digital body? >> > Has anybody tested the Pentax A35-70mm F4 or Pentax A 28-135mm F 4 or >> > M75-150 for example? >> > greetings >> >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> >> ---------------------------------------------------------------------------- JW> ------------------------ >> >> The information transmitted is intended only for the person to whom >> it is addressed and may contain confidential and/or privileged >> material. If you have received an email in error please notify >> Carmel College on [EMAIL PROTECTED] then delete all copies of it >> from your systems. >> >> Although Carmel College scans incoming and outgoing emails and email >> attachments for viruses we cannot guarantee a communication to be >> free of all viruses nor accept any responsibility for viruses. >> >> Although Carmel College monitors incoming and outgoing emails for >> inappropriate content, the college cannot be held responsible for >> the views or expressions of the author. The views expressed may not >> necessarily be those of Carmel College and Carmel College cannot be held >> responsible for any loss or injury resulting from the contents of a message. >> >> ---------------------------------------------------------------------------- JW> ------------------------ JW> ------- End of Original Message ------- JW> ---------------------------------------------------------------------------------------------------- JW> The information transmitted is intended only for the person JW> to whom it is addressed and may contain JW> confidential and/or privileged material. If you have received JW> an email in error please notify Carmel College JW> on [EMAIL PROTECTED] then delete all copies of it from your systems. JW> Although Carmel College scans incoming and outgoing emails JW> and email attachments for viruses we cannot JW> guarantee a communication to be free of all viruses nor JW> accept any responsibility for viruses. JW> Although Carmel College monitors incoming and outgoing emails JW> for inappropriate content, the college cannot JW> be held responsible for the views or expressions of the author. JW> The views expressed may not necessarily be those of Carmel JW> College and Carmel College cannot be held JW> responsible for any loss or injury resulting from the contents of a message. JW> ---------------------------------------------------------------------------------------------------- -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
