Sigma 15mm f2.8 Hit or Miss?


barryo70

Link Posted 19/12/2011 - 15:58
Hello

Has anybody used this lens on a pentax? Does anyone know how it fairs against the DA 15mm ltd? Any help received would be gratefully received

cheers

barry

K5 and a 43mm
fed up waiting for a FF

Pentaxophile

Link Posted 19/12/2011 - 16:10
The Sigma is a fisheye. The DA15mm is another kettle of fish entirely

What's more the Sigma is designed for full frame. On crop-sensor you won't get a 'full fisheye effect', just a semi-fishy look like the Zenitar 16mm:



[link=https://500px.com/will_brealey/[/link]
Last Edited by Pentaxophile on 19/12/2011 - 16:11

Helpful

barryo70

Link Posted 19/12/2011 - 18:17
Hi

thanks for the response. Is there less barrel distortion then on the da15?
fed up waiting for a FF

johnriley

Link Posted 19/12/2011 - 19:02
Quote:
Is there less barrel distortion then on the da15?

There should be very little on a rectilinear lens, but I suspect the 12-24mm will be even better as it is quite exceptional in that respect.
Best regards, John

matwhittington

Link Posted 19/12/2011 - 19:14
John is right - the lens is a rectilinear one. I have the DA15 and really like it, especially as it is so physically small compared with other wide angle lenses. Here are a couple of shots taken with mine which might help illustrate - the first of which is broadly comparable(ish) with the zenitar shot above - taken with DA15 on a K-7:

St Patrick's Cathedral



Three ways of crossing the Atlantic



Classic NY



Hope that helps (a bit)
Mat W

My Flickr: link

sterretje

Link Posted 19/12/2011 - 19:26
barryo70 wrote:
Hi

thanks for the response. Is there less barrel distortion then on the da15?

A fisheye has, basically by definition, barrel distortion.
Pentax K10D + Vivitar 55/2.8 macro + Super Takumar 55/1.8 + SuperMultiCoated Takumar 85/1.8 + SuperMultiCoated Takumar 135/3.5 + SuperMultiCoated Takumar 200/4 + Super Takumar 300/4
Pentax K100D + DA18-55ALII + DA55-300
Pentax K5 + FA31Ltd + M50/1.7 + DFA100WR + M120/2.8 (+ DA18-55WR at occasion)

barryo70

Link Posted 20/12/2011 - 14:44
Thanks for all the help. I ended up buying the sigma 15mm. I like the look of it and it was a great price. So that's two of my desired lenses with just 2 left to buy.
fed up waiting for a FF

barryo70

Link Posted 10/01/2012 - 13:24
I have to admit (with no experience of the DA 15mm) I'm glad I bought the Sigma. It's built lke a tank too!
fed up waiting for a FF
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