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Showing posts from November, 2007

A single leaf

A single leaf falls--silence of muted strings. -sek, Nov 2007 About fifteen years ago, playing guitar and muting the strings I heard a leaf fall outside, the sound heard through the open window.

Isolated Color

When an element of color is seen against a larger background of neutral color, the effect is called isolated color. This is a useful technique for isolating the subject and creating interest. The eye is drawn to the subject by the isolated element of color in the same way it is drawn to a highlight. On a gray day, white can substitute for color against a subdued color background (white against desaturated color). Although the image here is an example of isolated color, it is also an example of color harmony, since the browns and tans of the concrete, composed of stone aggregate, harmonizes (shares similar tones) with the leaf. The colorful element should fill a significant percentage of the frame to be effective.

Printing 4/3 Aspect Ratio Photographs

When it came time for me to move to a DSLR camera, I chose a camera that produces images with an aspect ratio of 4:3, which is the same size as older motion pictures and standard definition televisions. It is also the same aspect ratio offered by most digicams. Having done all my previous photography with a 35mm SLR, which has a 3:2 aspect ratio, the new camera prompted me to think about printing 4:3 aspect ratio photographs. Before deciding to go with a Four Thirds camera, I considered what moving from 3:2 to 4:3 aspect ratio could mean for my photography. In the last five years I had made some drawings and watercolors sized 9 x 12 inches. I noticed that I preferred this size to 8 x 10. It had a more "open" appearance despite having nearly the same aspect ratio as the ubiquitous 8 x 10. The 8 x 10 size always seemed a bit "claustrophobic." I occasionally had prints made 8 x 12 to preserve the 3:2 scene I had composed in the viewfinder, but the mats and frames were ...

Minolta MD 45mm Comparison to E-510 Kit Zoom

The MD 45mm f/2.0 has an excellent reputation as a sharp prime lens with good bokeh. I wondered how it compared to the "designed for digital" ZD 40-150mm f/3.5 zoom lens that came with the the E-510 two lens kit. I shot photographs with the 45mm and the zoom at 45mm as close to f/4 as I could. The result is in my picasa album. This was shot with the MD 45mm at f/4 using manual focus and Live View to adjust focus. And here is the ZD. Click on the image to get the larger version. This was shot with the ZD 45-150 @ 45mm f/4.1 in manual focus using Live View. If you look carefully at the lower edge of the MD picture you can see "La Plata" is clearer than in the ZD image. It appears the MD prime has better edge sharpness than the "telecentric" and "designed for digital" kit zoom. This despite the 45mm was designed for a 35mm camera and is probably at least 20 years old, that its image circle is being cropped to 4/3 and probably extraneous light is bou...

LightZone "Smooth Contrast" Experiment

I've been experimenting with LightZone to duplicate the effect available through a Photoshop action, which I am told employs layers of sharpening and Gaussian blur to achieve a heightened but smooth contrast. The effect is really attractive, beautiful and heightens the sense of form in a color photograph, to give it some of the essence of a black and white photograph. I have a strong affinity for this look. This is my first try, with two pairs of sharpen and blur effects, one for shadow and one for highlight, stacked this way: SH Zone Shadow, GB Zone Shadow and SH Zone Highlight, GB Zone Highlight. The result is a good first approximation to the effect I'm looking for. The sharpening is set to enhance local contrast and the blur layer above it smooths out any graininess and blends the tones together. The action I am trying to duplicate is Midnight Black available from Action Central . I have not downloaded or examined this action to reverse engineer it, because I wanted to see ...

Minolta Lenses on a Four Thirds Camera

During the summer, I bought an Olympus E-510 digital single lens reflex camera. The 510 is a FourThirds camera and because of the of shallow flange of the 4/3 lens mount it is one of the most flexible cameras on the market when it comes to mounting legacy optics (lenses from traditional film SLRs). A 4/3 camera can mount "legacy optics" or lenses from several other manufacturers made before the DSLR era. Although unintended, this makes FourThirds a revolutionary mount. For the first time not only can a photographer mount lenses from different manufacturers who produce lenses to the "open" FourThirds standard, with inexpensive Chinese-made adapters lenses from nearly any manufacturer from the golden age of SLRs can be mounted as well. Third party adapters can be found for Olympus OM, Nikon, Pentax, Zeiss and Contax. The only one missing from the party was Minolta. I purchased an inexpensive OM to 4/3 adapter from ebay and mounted several OM lenses, a 50mm f/1.8, 50m...