This is how it performes at F8 and 25mm: http://www.flickr.com/photos/bladt/24309201/
Jens Bladt Arkitekt MAA http://hjem.get2net.dk/bladt -----Oprindelig meddelelse----- Fra: Jens Bladt [mailto:[EMAIL PROTECTED] Sendt: 7. juli 2005 14:11 Til: [email protected] Emne: RE: Enabled - Sigma 18-50mm DC You are right, Boris. My only concern is: Will I ever use it? My policy is most of the time: You never know what the pics can be used for. A small print or a huge poster. So, I try to make all photographs max. quality and resolution. My philosophy was allways to stay ahead of competition (at work) by using top quality gear - and actually USING it. Most architects do photographing - and quite well too. My advantage is my gear and enthusiasm - I change lenses, I set up a tripod, I do mulitple exposures (bracketing), I come back for the same subject many times etc. etc. As you know; it is really hard work. And it actually has paid off. I get to do the photographing most of the time, whenever this is needed. I also get paid assignments after hours from time to time. And I must admit - even yhough I made thousands of photographs - I am still learning. I guess I'll never stop learning. I shoot exclusivly RAW-files these days and I hardly ever carry a camera, unless I seriously want to photograph. I won't even bring my "D" with me to Greece, in two weeks time. I'll just bring a P50 and a cheap, lightweight Tamron 28-80mm. And some film of course. I can afford to loose that - and then I don't have to worry about CF-cards, portable hard drives, batteriers etc. And then I'll bring my old Eumig Nautica - a submarine Super-8 movie camera :-) I'll try to take the Sigma for some casual shooting today. If it's bad, I'll get rid of it. Jens Bladt Arkitekt MAA http://hjem.get2net.dk/bladt -----Oprindelig meddelelse----- Fra: Boris Liberman [mailto:[EMAIL PROTECTED] Sendt: 7. juli 2005 12:36 Til: [email protected] Emne: Re: Enabled - Sigma 18-50mm DC Hmmm. On 7/7/05, Jens Bladt <[EMAIL PROTECTED]> wrote: > I have done a small test of the Sigma 3.5-5.6/18-50mm DC vs. the Tokina AT-X > 2.6-2.8/28-70mm (which IMHO is an excellent lens) @ 28mm f.4 and F8: > http://gallery37564.fotopic.net/p17229269.html > > I have enlarged the central part of the four images inside the same frame. > > It may be a little difficult to study the results from a small 800 KB image. > Anyway, it seems that @ F4.5 the Sigma lens is not very good (unsharp). But > @ F8 it's quite difficult to see any difference. > I guess if used the Sigma lens @ F.5.6-F.11 there's no visible difference in > most cases. Fully open it's not saticfactory at all - as expected. It seems to me that Tokina is also slightly more contrasty even at f/8... But this Sigma is probably tiny compared to Tokina and for $35 (right?) you couldn't be wrong. -- Boris
