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Tech Tips

Tech Tips

OP Expert George Lepp tackles your technical photography questions in Tech Tips.

Tuesday, February 22, 2011

Buyer Beware?

Please! Release Me! • Portable Printmaking • Finding The Lightning And The Trigger • Rendering Time-Lapse Movies

I’ve started to look for a photo stock agency to promote and sell my work, and I have grave concerns about how one in particular operates.

Tuesday, January 25, 2011

Keeping Your Images On Track

AF And AI Servo Settings • Noise Abatement • Selling My Pictures

I’m curious about whether using the AI Servo mode when you’re not tracking a moving subject would have a tendency to work against you.

Tuesday, December 7, 2010

Keep Your Powder Dry

Dry In A Drizzle Or A Downpour • Button, Button, Who’s Got The Button? • Noise Reduction: On Or Off? • Waves And Bends • New Endeavors

Some of the newer professional DSLRs and lenses are very well sealed, and you can work safely with them in damp conditions short of a downpour.

Tuesday, November 9, 2010

Make Your Best Black-And-White

B&W: Where To Start • Histograms In All The Right Places • Diffraction Ratings • Enhancements • New Film Scanners

Many articles in OP suggest software programs to try for converting color images to black-and-white and discuss how to fine-tune the converted images.

Tuesday, October 12, 2010

Autumn In Alaska

Tips from the Field, Denali National Park, August 2010

I spent the last week of August deep in the heart of Alaska’s Denali National Park & Preserve as the visiting specialist for Camp Denali’s photographic Special Emphasis program.

Tuesday, September 14, 2010

Enigmatic Autofocus

Focusing Is For The Birds • The Dark Side Of Long Exposures • Big Images From Small Files • To Tilt Or Not To Tilt

Autofocus is a cooperative function of the camera and the lens.

Tuesday, August 17, 2010

Photo Apps For Everyone

Apps For Androids And iPhones • The Good Old Digital Days • The Good Old Slide Projector Days

I keep hearing about photo apps for the iPhone, but I’m planning to get an Android-based smartphone.

Tuesday, June 22, 2010

Copying Copyright

Protective Symbols • Turned Off With Tripods • Hold Still...1, 2, 3...HDR! • Old Flash, New Digital

I had it on my computer as a JPEG image and was able to attach it to my photos as a layer in Photoshop. Where can I find it again?

Tuesday, May 25, 2010

How To Go Wide

Pointers For Panoramas • The Dark Side Of Wildlife Photography • Presentation Preparation • Filter Essentials

Okay, I admit you have me hooked on composite panoramas, and I’ve been working on perfecting my capture and processing techniques. But two problems keep coming up.

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