I'm going to sell my Canon 70-300 DO IS USM. see Thaivisa classified HERE. This useful and super compact zoom is not enough for the photographic hunt I am doing here in Koh Phangan and few month ago I was close to Nakhon Si Thammarat and I saw a lagoon FULL of water birds!

For this reason I need a more powerful tele, I cannot afford the big guns from Canon and my choice is going to the Sigma 150-500mm F5-6.3 APO DG OS HSM. Any feedback, experience, pros and cons?

I have a email correspondence with a guy in Fotofile MBK about buying a Sigma 150-500 (many positive feedback on the net). The guy, very competent and helpful firmly doesn't recommend me to buy that one but the Canon 100-400 for a 20.000 baht more. For sure Canon should be better, but really that Sigma is so bad?

Anybody has some experience/suggestion about?

Guess the biggest issue is the slow speed though for a lens that long it is not that bad. Reviews indicate it needs to be stopped down quite a bit to get sharp images, around f11. Some info and examples below though it appears you have been checking sites out already.

http://www.ephotozine.com/article/Sigma-150500mm-f5663-DG-HSM-OS-10138

http://www.stockholmviews.com/sigma_150-500_os/sigmapage4.html

http://www.testfreaks.com/lenses/sigma-apo-150-500mm-f5-6-3-dg-os-hsm/

http://shutterbug.com/equipmentreviews/lenses/072408sigma/

http://www.fouroaksonline.co.za/content/reviews/sigma-150-500-controlled.php

I have a email correspondence with a guy in Fotofile MBK about buying a Sigma 150-500 (many positive feedback on the net). The guy, very competent and helpful firmly doesn't recommend me to buy that one but the Canon 100-400 for a 20.000 baht more. For sure Canon should be better, but really that Sigma is so bad?

Anybody has some experience/suggestion about?

I am interested in this Sigma lens too - can you tell me what price you were Quoted by Fotofile?

Patrick

35,500 Baht for the Sigma 150-400 against 60.000 Baht for the Canon 100-400.

Sure Canon easy resale, better quality and for the snob with white color, but reading many reviews and forums on the net I found much much more positive than negative feedback.

And, last but not least, it costs half.

They have the Canon listed for under 50k here http://www.digilifethailand.com/ptshop/9-lens-canon... Call them for a price on the Sigma, they would be able to order it in.

It's 'shop warranty', which means if you need to use the warranty, take the lens to the shop and they will send it to Canon Thailand to be repaired.

Myself and friends have used this shop numerous times and not had any problems.

I got yesterday my 150-500, trade with my 70-300 Canon. I will post some pictures ASAP. The baby is big, and I got a small brother too, a Macro 150 2.8, Sigma too, good glass for my macros