Zoom lenses

[Alpha500]

So something I've found really lacking with my DSLR is the ability to zoom in on things, so I've been looking around and seen a few lenses, but I wanted to ask the opinion of those in the know before spending more money.

Sigma AF Zoom lens 75-300mm 1:4.5-5.6, is one of the lenses I've got my eye on.

Another lens I was looking at is a Minolta 70-210mm f4 AF zoom lens.

I also like the look of the MINOLTA 75-300mm "D" zoom.

And last but not least, Sony AF 70-300mm LD f4.5.6 Tele-macro zoom

Has anybody got any advice?

 

[dxqcanada]

I have the Sony AF 75-300mm and it has better image quality than the Sigma AF75-300mm.

... I actually going to sell it as I have a Sigma AF 300mm f/4.0

The Minolta AF 70-210mm beercan is a good quality lens ... but does not have that extra telephoto reach.