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Forum: Photographic Technique
11-05-2009, 06:25 AM
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1. As others have said, Macro mode allows the lens to focus closer, for 1:2 macro.
2. The Tamron's 1:2 macro is OK, but getting to at least 1:1 is a lot more fun. I like using a Raynox for casual macros, because it's so easy and imposes no noticeable drop in IQ. Just pop it on or screw it in, and you're set. Unlike reversing rings, a Raynox diopter supports auto-aperture. If I'm going to concentrate on macro shooting, I use the D FA 100mm.
3. & 4. For shooting flowers or going for an artistic image, shallow DOF is nice. If I'm shooting bugs, I try to get the whole insect in focus, but it's not always possible. With the DFA 100 I use like f11-f16. A Raynox loses some DOF, so I use f16-32 and except in direct sunlight I need to add light.
Here's a couple of shots using a Tamron 70-300 and Raynox 250. If you're interested in trying one out, I recommend the Raynox 150 for long lenses like the Tamron. It will go to 1:1 and considerably beyond, has a much better working distance and is easier to handle than the 250. The 250 gives a nice boost to lenses below say 135mm (nice with primes), but working distance is close.
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