Hi Patrick Thanks for the reply, very much appreciated. I think the only thing putting me off is the lens extending when zoomed, it's the main reason why I sold the 135-400 I had. Having said that it does keep the size down when transporting the lens in a camera bag.
One last question, if I may, is the zoom control overly stiff in operation? (it was on the 135-400 but that isn't/wasn't an EX lens) Regards, John On Thu, 8 May 2008 09:01:25 +0200, Patrick Genovese wrote > I have the bigma and ... > > > 1. Does SR work effectively? > Yes but not as effectively as at the short end.. I estimate the > effectiveness at the long end (above 300mm) to be around 1 -> 1 1/2 > stops. > > > 2. Is the lens type displayed correctly in the EXIF i.e. Sigma 50-500 EX? > No ACR just says sigma > > > 3. Aprroximate aperture when zoomed at 300mm f/4, f/4.5, f/5.6? > IIRC its somewhere around 5.6 > > > 4. Does the lens extend when zoomed? > Yes > > > 5. Does the front element rotate when focusing? > No > > One thing to note about the Bigma is that it is have so a good > tripod/head is almost a must. I use a manfrotto 055pro + a manfrotto > 393 gimbal head the combo works very well. Hand-held shots are not > out of the question but your hit rate will take a hit. :-) The > weight also means that handleld shoots tend to be short in duration. > In good light the af is reasonably fast and accurate (at least on > my K10D). > > Regards > > Patrick > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above > and follow the directions. ---------------------------------------------------------------------------------------------------- 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. ---------------------------------------------------------------------------------------------------- -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
