Experience with Sigma 150-500?

[jakerepp]

Can anyone comment on the quality of this lens? Found one in excellent condition for a great price. Been looking for something with more reach than a 70-200 and this seems like it could be a winner, but I'm reading that it focuses a bit leisurely.

[ksaviation]

not recommended to buy
Compared with the original lens, Sigma 150-500 has a high failure rate, especially the aperture component

[jakerepp]

not recommended to buy
Compared with the original lens, Sigma 150-500 has a high failure rate, especially the aperture component

Copy that. I ended up finding a Tamron 100-400 and went with that instead. Thanks!

[Vermont Coronel Jr]

Not recommended If you are uploading the photos on the database.
My copy usually has a lot of vignetting on 150mm even on F8, and the autofocus always hunts, or lag.
But if for personal collection of photos, I can recommend this since I have a collection of helicopters from a nearby building that was taken at 500mm.