|For mineral specimen photography a table top setup with a glass plate can be used in two principal ways: |
1. With a camera in vertical view mounted on a repro stand. The specimen is mounted above the glass plate so the level of the glass plate is never in focus if the aperture is set to maximal sparpness at f=8. Small depth of focus is overcome by (general) using of remote control software and automated stacking by focus control of the camera lens. Due to a black sheet under the glass a perfect black background is the result, small dust particels do not disturb as not in focus.The setup can handle specimen sizes of filed of views from 2 to about 25 cm. For larger specimens a (additional) curved table top or a upscaled glass plate is essential.
The back background can reasy replaced by other backgrounds. Coloured spots allow colour accents (spots).
A white background is possible with a white or semitransparent arcryl glass sheet on the glass in conjunction with a balanced backlight. Also here the specimen is mounted above the background level, to avoid troble from debris.
2. With the camera mounted in inclined view on a tripod or another stand the glass plate over black and with a black backshield produces a fine black background, which can combined with colour spots or coloured backgroun from below the glass plate. Background light must be in balance to specimen lightning. A white background is possible with a white or semitransparent arcryl glass sheet on the glass in conjunction with a balanced backlight typically unter a light tent or diffusor tunnel. Minor reflections of the specimen on glass plate, dust and debris can be removed by simple retouching.
|still under construction|
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|Vertical Setup||Vertical Setup 1||Vertical Setup 2||Vertical Setup 3||Vertical Setup 4||Vertical Setup 5||Vertical Setup 6|
|Table Top Setup||Glass Plate||Acryl glass on glass||Inclined view||Diffusor tunnel||Diffusor tunnel|
|Black on glass|