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.
http://www.ebay.co.uk/itm/Sigma-150-500mm-Sony-F-5-0-6-3-DG-HSM-APO-OS-Lens-Minolta-Sony-Digital-cam...
http://www.ebay.co.uk/itm/Sony-Alpha-fit-SIGMA-AF-70-200mm-f2-8-EX-apo-Zoom-/161480274584?pt=UK_Lens...
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.
https://www.flickr.com/photos/45595238@N03/sets/72157649420900881/
