Macro flash?

KC10Chief

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I was curious about the importance of a flash for a Sigma 105mm macro lens? I'd like to photograph some insects, and some of them at night! There's quite a few choices out there. The ring lights, and then there's the ring lights with the flashes on either side as well. Then there's some with the LED lights. I see that the ones with the LED lights have the option to keep the lights on steady. Would probably come in handy when it's dark outside. Thoughts?
 

Garbz

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Many IF macro lenses virtually stop down their aperture when focusing in close. I know even though the dimension doesn't change with the MicroNikkor f/2.8 105mm you end up with an aperture range of about f/16 to f/56. At ISO100 an LED light may not be very suitable for hunting insects.

Personally I can't justify the cost of a ring light or a closeup macro flash. I typically use flash for macro but wirelessly trigger my SB-800.

strobist.blogspot.com also has some good guides on how to make DIY ringflash adapters for speedlights.

Ultimately though it would give a different effect than a dedicated macro lighting setup. I would go for the dual flashes if I had the spare money, ringlights don't allow much creativity with the lighting as far as I know where the dual flashes you can adjust a brightness bias from left to right on many of them.
 

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