Q: Best non-macro lens for macro work?

[Todd Caudle]

Of the lenses I use most frequently, which would be best for close-up photograph y (generally 1:1 or so), a 135mm or a 210mm, both Symmar-S? I know that in the 3 5mm world, a 100mm macro lens will allow more distance between lens and subject than a 50mm macro, but I also realize that I need 420mm of bellows draw for 1:1 with the 210mm. I use a Wisner Expedition, so bellows draw isn't too much of a f actor. What are the pluses and minuses of using these focal lengths? Please avoi d the "you should use a lens optimized for 1:1" angle in favor of the arguments for and against the lenses I already own. Thanks in advance -- this forum is so incredibly awesome!

[Cesar Barreto]

Todd, On the technical side, there should be no much difference between both lenses, as their design is quite similar. Perspective will show a major step and should be considered carefully, although a quite subjective matter. Once you have your subject filling the view- finder, DOF will be the same as the usual trouble it brings to the game. Kodak had a very informative booklet on macro-photography, covering everything from train models to baby-shrimps, including large-format, where the optical question was covered on quite a broad and realistic way. I mean, not trying to sell some piece of "magic glass". Maybe it's still available, I don't know. By the way, have you an enlarger lens? Good work.

Cesar B.

[pat krentz]

Like Cesar said, if bellows draw and subject to film plane distance is not a factor then you should be able to use either lens. Pat

[Bob Salomon]

Neither wwill give critically sharp, contrasty results as they are well out of their optimization range.

A dedicated macro lens will be superior if edge to edge performance with optimal resolution and contrast is important.

both will be adequate though.

[Pete Andrews]

Do you own an enlarger Todd? If so, a decent 6 element enlarging lens of 80mm or longer, will outperform a general purpose taking lens at macro distances. The lack of a shutter isn't much of a problem when shooting macro. You'll either be using long exposure times, or flash, anyway.