Photo Tip: Focus Stacking ____ 2011/06

Focus stacking is a relatively new digital imaging technique, especially useful for macro and scientific photography, and an occasional aid for landscapes and small portraits as well. It’s a clever digital answer to lens optic limits that conspire to demolish resolution and depth-of-field (DOF). Image resolution falls precipitously at high f-stops (f/22 and smaller). Depth-of-field […]

Tilt and Telephoto: Tools for Summer Wildflowers ___ 2010/06

Mt. Rainier National Park. A conventional 24mm could capture this shot (maybe), but seeing it is far easier with the TS-E. With the conventional 24mm, the depth-of-field preview button darkens the viewfinder too much; an alternative, an in-camera (digital) test shot evaluation, is time consuming. Near-to-far focus that’s not attainable with a conventional short telephoto […]

Photo Tip: Full-frame Bokeh __ 05/2008

APS-sized sensors for wildlife are touted for their ability to extend the reach of telephoto lenses, making, in the case of APS-C (e.g. 1.6x multiplier for Canon 40D), a 300mm lens into a 480mm equivalent. This is a enormous asset for hard to reach wildlife, or for trailside flower photography when you can’t step off […]