Monthly Archives: July 2010

Alien Fresh Jerky

Alien Fresh Jerky

Alien Fresh Jerky, photo by Harold Davis. View this image larger.

I used this photo in a demonstration for our new Photoshop Darkroom 2: Creative Digital Transformations. The point was to show Photoshop CS5’s new content-aware fill feature. I used content-aware fill to automatically remove the power wires from the original photo.

As I noted the first time I blogged this photo, there are many questions raised by this sign. For one thing, I am still wondering where they found the aliens to convert into jerky. Maybe that’s the point of this Area 51 thing?

Posted in Bemusements, Photography

Eye Pluribus

Eye Pluribus

Eye Pluribus, photo by Harold Davis. View this image larger.

This is a composite photo collage created in Photoshop—as if you couldn’t tell! The background image shows the shadow of a flower backlit on a piece of tracing paper (below, top). The ocean view is an evening shot of surf at Drakes Beach (below, middle). The eye is my eye from a recent self-portrait (below, bottom).

Combining the images took some careful scaling and masking. I used the Mystical Lighting Photoshop plug-in from Auto FX Software to add the beams of light.

Shadow

Wave Passage

Eye Photographer

Posted in Bemusements, Photography, Photoshop Techniques

Dahlia Flutes

Dahlia Flutes Purple

Dahlia Flutes Purple, photo by Harold Davis. View this image larger

Two recent macro shots of a Dahlia reveal the structure and mystery of this flower viewed extremely close-up. Both were taken with my 50mm macro lens augmented with an extension tube.

As you can see, the light was quite different for the two photos even though they were taken over a fairly short time span. This is a feature (or bug) of the sunlight studio, particularly when capturing as the sun sets.

Dahlia Heart

View this image larger.

Posted in Flowers, Photography

Stacking Waves

Wave Stack

Wave Stack, photo by Harold Davis. View this image larger.

I’ve been thinking about stacking as a technique to use for subjects besides with star trails. I’ve tried a spider busily spinning a web, but so far I haven’t found the right spider or background—and I also need to adjust the exposure interval. Another possibility: a crowded area full of rushing people. I’ll get there.

Yesterday evening I was with Mark at Sculptured Beach in Point Reyes National Seashore. The wind was gusting like crazy, so I positioned my camera and tripod low to the ground behind a sheltering rock.

This image is a stacked composite using 12 exposures. I shot each exposure with very little intervals at 1.6 seconds, f/22 and ISO 100. I used a Polarizer to further lengthen the exposures. Essentially, the point of stacking was to create an exposure where the sum of the the exposure time for the moving objects—the waves—was longer than could have been obtained (considering the light) in a single exposure. Stacking also meant that the exposure time on the static objects—rocks, cliffs, and sky—effectively stayed at the time of a single exposure.

Think about it: with the Polarizer, stopped all the way down, and using lowest ISO I could manage a 1.6 second exposure. Stacking the exposures, I have the equivalent of 1.6 X 12, or 18 seconds on the moving waves.

I used the Photoshop Statistics script with the Stack Mode set to Maximum to combine the individual images.

Posted in Photography, Photoshop Techniques, Point Reyes