hey guys..im new to the forum but i have canon rebel t2i or 550d. I would love to get a fish eye lens for it..wanna make some cool videos and stuff..any recommendations on whats good and where to get em? appreciate any help thanks

Sigma makes a decent and affordable 8-16 fisheye. No idea what the Thai price on it is though.

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I have the Sigma 15mm F2.8 EX DG Diagonal Fisheye.

It is actually one of the best fisheyes ever made. I am very happy with it!

I have a Sigma 10-20 mm lens. Does that count as a fish-eye lens? It sure is wide angle. Got it second hand for around 12 K. Very happy with it.

That's a wide angle, and a good one, but it's not a fisheye. Sigma's 8-16 is though.

This post gives some idea of the effect of the fisheye lens

As to where to get them - guess it depends where you are....tyry Big Camera at your local m,all as those are national. For local shops, you need to tell us where you are. PS: I have the same camera and have both Canon and Sigma lenses (brought from the UK) - can also get them via ebay (new) especially from Hong kong (remember the import tax though).

Check the Samyang, very good fish eye (and cheap)

http://www.syopt.co.kr/eng/product/8mm.asp