Something in the region of 75-300mm and not more than £175 ideally. Happy to go second hand but after looking on ebay for a while they seem quite expensive and almost not worth it.

So far considered:

Sigma 75-300mm APO
Minolta 75-300mm D

Any advice would be great.

I’ve got the Sigma 75-300mm APO on my A350. I can’t really fault it but I am no expert – and it only cost me £35 off Ebay so even less to complain about.

Have you tried asking on the Dyxum forum? You’ll get someone far more knowledgable over there.

There is also a lens database on the Dyxum site.

Info on the Sigma here.

Info on the Minolta here.

Have a read of the reviews.

search minolta cosina on net I have a 100-400 zoom from my old dynax 500, which is still an excellent lense on my alpha

How did you manage to get the Sigma 75-300mm APO for £35? They normally go for much more.

On the listing the seller said that it worked with his old Minolta but wouldn’t auto focus with his A700. This obviously put most people off, but I thought it was worth a cheeky last minute bid and it’s been fine.