Question
I hooked up the 50D to my MacBook Pro the other day at home and found it great to see exactly how a photo is going to turn out on the big screen before taking it and was wondering when such a setup might be used and how frequently it is used, considering it's not exactly something you can roam about with.
I guess the obvious ones such as long exposure (astronomy, landscape) etc, but are there other uses? Model photo shoots?
Is it better to simply use a remote instead of hooking it right up to a computer?
Answer
It's called tethered shooting, and is mostly used in studios; as you say, it's not exactly a portable setup. It has the advantage of letting you write photos direct to disk, bypassing the memory card, and as you said, you can see a photo preview large and on-screen before shooting, like a high-res version of live view.
Press photographers at football matches and other events can use wireless tethering, with a laptop connected to the internet, so that picture editors back in the office can access the photos directly almost as soon as they are taken.
If there's no overriding need to get your photos on disk immediately, however, then using a remote will do in most situations.
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