[esdy_11192]

I found on a local website an offer for a Sigma 21-35mm lens for Pentax. It's not a AF lens, and I guess (it's not marked) that the aperture is f3.5-4.2. Apparently the ad states that's in mint condition (the same seller sold me a mint 50mm f1.4)

Unfortunately I can't find any informations about this lens, especially with a K mount. I found some photos on flickr made with an MF Canon camera, and found this Canon FD version on KEH
LINK

I was wondering is 50e an OK price for that lens ? I don't have anything wider than 35mm on a Tokina 35-70mm f4 lens. I was planing to buy a prime 35mm, 28mm or a 20mm but this Sigma seens interesting. One more think, this is planed for a Pentax film body, the ME Super.

Any advice would be nice.

[esdy_11192]

Any thoughts would be helpful. What would you do in my position ?? It's not a high price so I'm think I'll maybe take the risk and buy it.