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Old May 28, 2006, 12:45 PM   #11
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Sooooooooo confoosed now. As I browse / research / search for macro (aka MICRO in Nikonian), pretty much all results come back with some variation of "f/2.8".

What you're telling me is that smaller apertures (i.e LARGER "f" numbers) are better for macro shots. So why don't these specialty macro lenses have f-numbers HIGHER than 2.8? (eg. 4.5, 5.6 or more).

Sooooooooo confooosed. :?
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Old May 28, 2006, 1:12 PM   #12
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mcwyuma wrote:
So why don't these specialty macro lenses have f-numbers HIGHER than 2.8? (eg. 4.5, 5.6 or more).
They do.

Lenses are rated by their largest available apertures (smallest f/stop number). A lens with a larger available aperture is going to gather more light for Autofocus purposes, and will be usable in more conditions (since the smaller your aperture, the slower your shutter speeds for any given lighting and ISO speed).

You can still use them at smaller apertures (higher f/stop numbers). Most lenses can be stopped down to at least f/22.. Some lenses go to f/32 or even f/48.

See the manufacturer's lens specifications to see what the actual aperture range for a lens is. But, keep in mind that if you use apertures that are too small, you begin to run into diffraction problems causing softer images. You'll also have slower shutter speeds using smaller apertures (which is why a tripod is normally used for macros if you need to stop down the aperture much in less than optimum lighting).

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Old May 28, 2006, 8:13 PM   #13
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mcwyuma wrote:
Sooooooooo confooosed. :?
Photography is suppose to be for fun. Too much informations will confuse you. If you want a lens for macro get the Micro-Nikkor 60mm. You will have to do lots of practices, do not waste your time learning lens engineering if you want to be a good macro photographer.

This picture of a butterfly was taken with Nikon D50 and Micro-Nikor 60mm.
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