Don,
Thanks for the link. This is indeed a very good site for product
reviews. I feel comfortable buying this lens after reading their review.
Dave
On 4/15/08 4:29 AM, "Howard" <howard.leigh111@xxxxxxxxxxxx> wrote:
> Interesting - I've been using Sigma lenses for years... and never had a
> single problem with them either optically or mechnaically. I still have
> a Sigma 70-210 that's 15 years old.
> I currently use:
> Sigma 10-20 and the Sigma 18-85 on my D100
> Both lenses are critically sharp and beautifully made.
> The 10-20, whatever marque, will show issues with vignetting and some
> barrel distortion as the site below will show. however. So the Sigma
> 10-20 slightly slower speed isn't really much of an issue.
>
> For lens reviews this site is incredibly comprehensive.
>
> http://www.photozone.de/
>
> Howard
>
>
> Don Roberts wrote:
>> dmoore wrote:
>>> Hello all,
>>> I am a returning member of Photoforum. I am a photography
>>> professor at
>>> Le Moyne College in Syracuse, a commercial photographer, and sometimes a
>>> fine artist - when I have time. There's never enough time is there?
>>> I have a question for the group about super wide zoom lenses for
>>> digital
>>> cameras. I own a Canon EOS 40D and I am interested in buying a very wide
>>> angle zoom lens for this camera, mostly for my fine art work but also
>>> occasionally to use for weddings and Bar Mitzvahs.
>>> Canon makes a 10-22mm lens which sells for about $700. Sigma
>>> makes a
>>> 10-20mm which sells for about $490. The Sigma lens is about 1/2 stop
>>> slower
>>> but other than that I see nothing on the surface that makes the Canon a
>>> better lens. However, I have read a couple of on line articles that
>>> really
>>> pan Sigma lenses as being very inconsistent in quality. And then
>>> there are
>>> Tamron and Tokina, which both make 11-18mm lenses that sell for about
>>> $580.
>>> Does anyone have an opinion on the quality of these independent lens
>>> manufacturers' lenses, and on the Sigma lens in particular? Thanks.
>>> Dave Moore
>>>
>> Dave, I can only speak from personal experience and from past lens
>> purchases. If I had no money worries, I would always take the
>> manufacturers lens. Well, almost alway. I have used Tokina 28-85mm
>> f/2.8 lenses that were better than the Nikkor 35-85mm f/2.8 lenses.
>> So, based on my usage, I would go Tokina or manufacturer first, Tamron
>> second and Sigma as a last resort. Now, Sigmas may have improved a
>> lot in recent years and I wouldn't know. Earlier - like 20 years
>> earlier - we purchased and returned as unsuitable a few Sigmas. Their
>> only merit was being cheaper than the others. Oh, and having good
>> advertising.
>> Don
>>
>>
