Lens advice for Alpha A580

PSG1888 — Tue, 25 Nov 2014 20:59:32 GMT

Hi,

I am looking for a new lens for my Alpha A580 but I am unsure what to go for.

I mostly enjoy photographing wildlife or sports and I have been looking at these 2 lenses on Ebay.

I have just returned from Egypt and took most of the wildlife pics in the following link on a Tamron 70-300 F4-5.5.

Based on these would I be better with the longer focal length or the faster aperture lens ?

Any advice would be appreciated.

topic Lens advice for Alpha A580 in Alpha & NEX interchangeable lens cameras