Photgrphy terms help please!

[tranter3004]

Hey im a begginer as you could probably guess and i was just wondering if any1 could shed light on some terms:

Sigma 70-300mm f/4-5.6 APO Macro DG the abbreviations underlined please...

Oh one more thing there are two Sigma 70-300mm lens' with macro switch that imintrested in... One is the lens thats mentioned above which is £179 and another without APO for £109, whats so good about these 2 for this price difference???

Thanks Kyle

P.s nice site its helped me alot!:thumbsup:

[Greg McCary]

Try this link to Sigma. DG stands for digital lens and the other is explained here. Just click on APO on this page...
http://www.sigmaphoto.com/lenses/len...sp?navigator=3
Greg

[tranter3004]

Cheers Greg Thanks... You know which one of them lenses is better or does the APO not make much difference anyone know?

[another view]

The one without APO is less expensive. At longer focal lengths it might make a difference but it depends on your eyes mainly. I used to have an old Nikon 300mm manual focus lens. It was offered with and without a similar feature. Some people couldn't see any difference with it (ED as they call it) and others could. I had the one "with" and it was a truly excellent lens, but no experience without. The difference likely will be very subtle and only show in some situations. However, I don't know these lenses and there may be other differences between them.