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Old Jun 12, 2005, 1:50 PM   #1
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whats the difference? Between a canon macro lens and a regualr lens? Will the macro operate as a regular lens? do I lose anything?
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Old Jun 12, 2005, 3:23 PM   #2
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Well, first off I believe macro is universal. So you don't really need to ask about Canon macros, specifically...

Second of all, imo, the answer to your question seems so simple enough that I'm afraid to even answer it...

But, I'll try anyway...:roll:

Basically, a lens that says macro is specially designed for macro shots. Just like how the 20Da is designed for taking pictures of the night sky. Some people consider 1:1 as "true" macros, but 1:2 seems decent enough to me.... Regular lenses will generally not have an ideal ratio for macros.

Actually, I would also like to know what the ratio is between... I have no idea... It's something like the actual image vs. something... er...:?:

But yes, you can use them for other shots. For instance, the new EF-S 60mm has an ideal focal length for portrait photography (with the 1.6x factor)
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Old Jun 12, 2005, 7:15 PM   #3
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FYI - http://www.shutterfreaks.com/Tips/tomhicksmacros.html

..."THE HARD PART

By far, the most difficult part of macro (and especially extreme macro) is focusing. Modern autofocus (AF) systems are useless at these magnifications because you cannot precisely set the exact plane of focus when using the camera's AF system, but at less-than-lifesize magnification AF will do well. However, if you rely on your camera's AF at high magnifications, you will end up being sorely disappointed and you will finally switch to using manual focus (MF) for these shots, so you might as well start there from the beginning.
" - http://www.beautifulbugs.com/howto.htm
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Old Jun 13, 2005, 12:58 PM   #4
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Thanks, that was useful

But is the Canon 500D the only good diopter around?

...Where's sigma when you need them? :blah:

One other question though... You know how one of those links had only one 77mm diopter, and 58-72 & 72-77mm up-size rings, right?

I was looking at price lists when I saw a down size from something like 77-67... Isn't that a bad thing? Why would you go for that?
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Old Jun 13, 2005, 1:19 PM   #5
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BoYFrMSpC wrote:
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...Where's sigma when you need them? :blah:
You don't need Sigma for this, both Heliopan and B+W makes excellent diopters as well: :G :lol: :-)
http://www.schneideroptics.com/filte...aphy/close-up/

... but for laught: http://www.adorama.com/SG72CUL.html


The step-up ring(s) allow you to use one larger standard size diopter(s) for many lenses :idea:
-> i.e. It's more economical this way (the author probably had a 72mm in-between lens)
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Old Jun 13, 2005, 2:25 PM   #6
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I have the Canon 250D close-up attachment. As good as it is it is not in the class of a good macro lens. The D signifies that it is a dual-element achromat, more like a lens than a filter.
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Old Jun 13, 2005, 2:56 PM   #7
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Some more 2 element achromats - http://www.angelfire.com/ca/erker/closeups.html
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