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28-03-12, 09:45 AM
Join Date: May 2009
OldBoy and hssutton are spot-on. You might also consider investing in a teleconverter to extend the reach of existing lenses, or the lens(es) you purchase. A 1.4x converter will give you 1.4x the focal length, while a 2x will give you 2x.
The only thing you need to be aware of is that you will lose a stop with the 1.4x (so if your lens has a max aperture of f/4, it will only be f/5.6 with the extender attached) and two stops with the 2x (so only f/8 in the previous example). This will make it harder to blur out backgrounds, unless the background is very far away.
You also need to make sure that any extender is compatible with the lens, and will still enable, say, autofocusing.
Hope this helps!
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