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Question: What does single focal length mean!?
would they be better than macro lenses for close ups!?Www@QuestionHome@Com


Best Answer - Chosen by Asker:
This means that they have a fixed focal length, they are also called prime lenses!. They remain at one focal length, they don't have a zoom ring, the ring on the Lens is a large manual focus ring!. Prime lenses make the best Macro lenses, because they usually have large maximum apertures, here's an example a great Macro prime lens:

http://www!.amazon!.com/Canon-100mm-Macro-!.!.!.

The obvious disadvantage is that you can't zoom in/out!. Www@QuestionHome@Com

It is not a zoom!. It only has one focal length whereas a zoom has an infinite number of focal lengths within its parameters!.

You can get zoom lenses with a macro feature and they are pretty convenient!. I actually have a variable macro converter that fits on all of my lenses, so I can make any lens that I have a macro lens!. That is for my Olympus OM film cameras!.Www@QuestionHome@Com

It means it is a prime lens of a fixed focal length and cannot be adjusted like a zoom lens!. For more information and to see the effect of different lenses on the same photograph visit the following web site-
http://www!.tamron!.com/lenses/learning_ce!.!.!.

ps note the macro lenses towards the bottom of the list and give the page a little time to load Www@QuestionHome@Com

The distance between the focal point of a lens (that is, the point at which the lens will focus parallel rays of light) and the lens itself!.
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