Hi Folks!

Is anyone familiar with the performance of Sigma 20-40mm f2.8 DG? Someone's selling at dirt-cheap price and I'm wondering what the catch is. I've read limited user reviews from the web and was wondering if you guys have hands-on info you can share.

Thanks! :)

I have no first hand experience with this lens, but upfront, personally, I can say that the focal range isn't very good for a zoom. It's not wide enough; and not long enough. It will be good for typical party group shots though. Also, the f2.8 is a big plus in low light. :-)

But if the price is really good, test it. You might lie it. Just my share.

It's a decent lens for film, but not sure about a crop. I have a 22-55mm from my APS film days and it's a weird range to work with but doable.

One issue you might have is older Sigma lenses will not work on digital without re-chipping. You'll get ERR01 whenever you stop down your aperture.

Thanks guys! I'm about to test it tonight.

Yes, I agree that 20-40mm is a bit odd. I shoot mostly landscapes and architecture and am already planning to get the 11-16 tokina + 17-55 nikkor 2.8's, but thought I'd defer the nikkor for this sigma (considering the low price) and if it performs well, get the 50-150/70-200 instead.

Link to sigma site: http://www.sigmaphoto.com/lenses/lenses_all_details.asp?id=3259&navigator=1 says it's optimized for digital.

This review: http://www.ephotozine.com/article/Sigma-EX-Aspherical-DG-DF-2040mm-f28-4600 is a bit on the positive, I guess. This is the only detailed review I've come across so far.

I figure, if it has minor defects that can be repaired I can still purchase it and have it serviced when I'm in Manila next month. For Php7000 I'm thinking it's not a bad deal. Your thoughts?

Does this lens really exist?

Does this lens really exist?


Review dates go as far back as 2005, and sigma indicates it as discontinued. 'Read also that it's a bit susceptible to flare. Not a very famous model, I guess.

Review dates go as far back as 2005, and sigma indicates it as discontinued. 'Read also that it's a bit susceptible to flare. Not a very famous model, I guess.

I guess not. I have the latest copy of Sigma's Lens Catalogue and I can't find this lens anywhere in that catalogue.

I have this lens... It's not that sharp( but does it really matter that much if you have PS?)... :Grin:


sample shot..
http://farm4.static.flickr.com/3594/3329351339_37f64fec07.jpg

Thanks for the sample, Adrian, and to all who replied! :)

'Took a chance after brief inspection and test shots - looks ok but needs to be stepped down to f4 at least for improved sharpness. I guess it's not a bad deal for PhP7k...

It's like the mutant inbred offspring of a 10-20 and a 17-40 hehe.

Anyway, at 7k, you can think of it as a prime 28 or a prime 35 in a single lens just so that the range doesn't weird you out :p