Tuesday, October 1, 2013
Multitasking With Macro
Consider the talents of a 90mm macro lens at both ends of the composition spectrum
Pretty petals are often the primary focus of close-ups, but the macro view can create interest in dried stems, grasses and thistles (Photo 9). Low, early or late backlight draws attention to shape over color and sets golden highlights against the blue shade of an out-of-focus background.
Of course, the primary reason anyone chooses a macro lens is to do extreme close-ups at magnifications at or close to 1:1. The term "macro" doesn't have a universally agreed-upon definition. Some use it loosely as a synonym for any close-up while others claim that a 1:1 magnification ratio is necessary.
The 1:1 magnification ratio means that you can render the subject at life-size on the sensor. A flower that measures one inch across can be photographed so that it will be the same one inch on the sensor.
The Tamron SP 90mm F/2.8 Di VC USD MACRO 1:1 with eBand Coating was used for this article. It measures 4.5 inches at infinity, weighs 19.4 ounces and takes 58mm filters. The minimum focus distance is 11.8 inches, it's compatible with full-frame and APS-C DSLRs, and it's available for Nikon (with built-in motors), Canon and Sony mounts. The estimated street price is $749. For more details, go to www.tamron-usa.com.
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