Board index Photography Technical Questions Sigma 170-500mm f5-6.3 APO DG

Technical Questions

Sigma 170-500mm f5-6.3 APO DG

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irislynx
 
Posts: 325

Sigma 170-500mm f5-6.3 APO DG

Post Tue Feb 28, 2012 6:41 pm


Hi all, I was thinking of getting a Sigma for Nikon 170-500mm f5-6.3 APO DG for my Nikon D80 and I noticed that some are written as Sigma 170-500mm f5-6.3 APO DG and others are written as Sigma 170-500mm f5-6.3 APO RF DG .... I know that RF stands for rear focasing, My question is : Are these two different lenses or do some people just tend to leave the RF out when writing about them?? I have never had a sigma lens before and I'm not sure about if there are two different lenses in the 170-500 or not.

irislynx
 
Posts: 325

Re: Sigma 170-500mm f5-6.3 APO DG

Post Thu Mar 01, 2012 10:10 pm


Well, I found out that there "are" two different lenses although they are very much identical in usage, If anyone has anymore info to offer, I would really like to hear about it, I'm sure there must be some people on here who has/has had this lens.

amoxtli
 
Posts: 3191
Location: San Diego, California

Re: Sigma 170-500mm f5-6.3 APO DG

Post Mon Mar 05, 2012 5:14 pm


If you go to this page, you'll see there 114 users on PBase that use the 170-500:

http://www.pbase.com/cameras/sigma

It only lists one lens. There is a 170-400 listed as well. A quick look at the Sigma site reveals the lens is not currently in their line-up, yet it is available for sale through several merchants:

http://www.sigmaphoto.com/shop/telephot ... es?page=99

My guess is they only ever made one 170-500.
Walter Otto Koenig Architectural Photography: http://www.wokoenig.net

General Photography: http://www.wokoenig.com

Pacific Photographic Society: http://www.pacificphoto.net

irislynx
 
Posts: 325

Re: Sigma 170-500mm f5-6.3 APO DG

Post Mon Mar 05, 2012 8:30 pm


amoxti, Thankyou so much for your reply and links ( Much appreciated) They actually made 2 of these lenses, The Apo, And the (apo DG in 2005) They are almost identical but the DG does have some differences ( Different lens coating ect) ~ Checking the Sigma lensés in the search engine for pbase brings up the info and photo on
the Sigma 170-500mm f5-6.3 APO DG lens.


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