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Tech Tips

Tech Tips

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


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.

Tuesday, April 27, 2010

Resolution Vs. Sharpness

Crowded Pixels • Extender Percentages • Shedding Light On Adobe Lightroom • Protection • Laminates • Storage Is In The Cards

The 18-megapixel APS-C sensor has the advantage of higher resolution if you photograph with quality optics.

Tuesday, March 30, 2010

The Future Of Nature Photography

The Next Generation • Show Me The Money • The Crystal Ball • Too Much Of A Good Thing

We’ve just returned from the 16th Annual Summit of NANPA, the North American Nature Photography Association (www.nanpa.org), an organization that promotes responsible and creative photography of wildlife and the landscape. The Annual Summit always is an occasion to reconnect with old friends and colleagues and to be inspired and renewed by the amazing work shared by professionals and skilled amateurs in this field.

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