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Monday, January 1, 2007

Digital Basics For Outdoor Photography


Image Capture • Optimize • LCD Viewing • Share


Tech Tips: Digital Basics For Outdoor PhotographyIn this column, I'll address questions concerning critical digital photographic equipment and skills. These are the kinds of questions often asked by students at my workshops and seminars, especially by photographers still considering whether they want to change from film to digital or those just making that change. But even advanced digital photographers find they lack essential equipment–in the camera bag or at the desktop–and the knowledge keeping them from achieving their photographic vision in the digital realm.

What are the basic tools necessary to technically support digital photography, and what are the basic skills needed to manage those tools competently? The easiest way to structure the answers to these questions is to group them within the basic work sequence that the photographer typically undertakes—from taking the picture (capture) through processing (optimization) to presentation (sharing) of his or her images.

This image from Mono Lake, Calif., embodies all that can be accomplished in digital photography today. A Canon EOS 5D was used with a 17-40mm wide-angle zoom to capture a 30-second exposure at ƒ/16 while my colleague, Rich Hansen, and I painted the tufa formations with high-powered flashlights. Using the camera's LCD and histogram, the exposure was calculated to include detail in the sky. The image was optimized in Photoshop CS2, and I've printed it on the Canon iPF5000 pigment printer. I digitally project it in my seminars, and I sent it to Outdoor Photographer by e-mail so you could see it here in my column. It's a digital world!

Image Capture


What kind of camera should you buy? Well, first, think hard about what kind of photography you want to do. Landscape photography requires lighter and less complicated equipment, but it demands skills, lenses and filters that will capture fine details and resolve contrast issues.

On the other hand, the wildlife photographer needs a camera body with the ability to capture quick sequences (up to eight captures per second), long lenses, sophisticated flash techniques and a fair amount of biological knowledge. Macro photographers need to work with specialized lenses and flash. And the photographer who wants to do everything can expect to carry a very heavy bag and a second mortgage.

There are trade-offs. Even if you can afford one, can you physically handle a heavy, professional camera and the long, bulky lenses and the tripods they require? Much can be accomplished in digital format at less cost and heft than film cameras demand, because even the less-expensive digital cameras have features that exceed film, such as speed of capture, sophisticated metering systems and autofocus capabilities, and improved image quality in the form of ever-increasing numbers of megapixels.

So how do you make your choices? Do your research before you buy any piece of your setup. Making hasty decisions almost always backfires when you discover your purchase doesn't allow you to accomplish what you want or isn't compatible with your other equipment.

Find a photographer who's working in the area and at the level you want to reach, and take his or her advice about the gear needed to achieve that level. Go online, read evaluations in photography magazines like OP and study the manufacturers' brochures, web tutorials and specifications. Attend workshops and trade shows, get one-on-one information from the manufacturers' technical experts and handle the equipment before purchase.

But don't stop there. I'm surprised by how many of the students I encounter who haven't taken the time to master the full capabilities of their equipment. Many camera stores offer basic tutorials as purchase incentives. The moment to figure out the dials and settings isn't when you're undertaking an expensive field workshop with an instructor you expect to help you take your photography to a higher level. If you can't already use every feature of every piece of equipment in your bag, you and your instructor will waste a lot of precious time—and will possibly miss amazing photographic opportunities.

Finally, the magic of digital capture doesn't preclude the need to fully understand the basic photographic principles of shutter speeds, ƒ-stops, depth of field and composition. To achieve the maximum sharpness capability of your new equipment, you need a quality tripod and ballhead, while employing techniques like locking up the mirror and using a cable release to eliminate vibration in long exposures. Plus, learn proper exposure adjustment using the camera's histogram feature, and understand the various advantages and limitations of each file-format option—JPEG and RAW.



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