Peter K. Burian

Sigma AF 14mm f/2.8 EX Aspherical HSM
Peter K. Burian  |  May 01, 1999

Until recently, most photographers considered a 19mm or 20mm focal length as the ultimate in ultra-wide, but this is rapidly changing. Thanks to the new technologies for making more affordable aspherical elements, much shorter lenses are becoming readily...

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The Right Track
A Guide To Depth Of Field
Peter K. Burian  |  Mar 01, 1999

Aside from the intricacies of exposure and light metering, photo enthusiasts generally find depth of field the most difficult concept to master. That's understandable particularly since this is a hypothetical factor based on subjective judgment.

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Pro Techniques
Stock Photos
10 Pro Tips For Direct Marketing
Peter K. Burian  |  Jan 01, 1998

Is there a serious photo enthusiast out there who doesn't harbor a desire to see his or her work published? Well, the vast majority I know would love to market their images to books, magazines, and advertising agencies. In fact, the most commonly...

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Sigma AF 70-300mm f4-5.6 DL Macro
Peter K. Burian  |  Jan 01, 1998

Although many of Sigma's new lenses incorporate the latest technology and/or premium grade optics, this manufacturer continues to compete aggressively in the market for affordable zoom lenses. In addition to its APO, Aspherical, and HSM series, Sigma...

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