The following table lists exposures for eyepiece projection with a 10mm eyepiece. All exposure times are listed in seconds or fractions of a second.
Planet | ISO 50 | ISO 100 | ISO 200 | ISO 400 |
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Moon | 4 | 2 | 1 | 1/2 |
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Mercury | 16 | 8 | 4 | 2 |
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Venus | 1/2 | 1/4 | 1/8 | 1/15 |
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Mars | 16 | 8 | 4 | 2 |
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Jupiter | 8 | 4 | 2 | 1 |
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Saturn | 16 | 8 | 4 | 2 |
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Table
The exposure times listed here should be used as a starting point. Always make exposures that are longer and shorter than the recommended time. Also, try bracketing your exposures, taking a few photos at each shutter speed. This will ensure that you will get a good photo. It is not uncommon to go through an entire roll of 36 exposures and have only one shot turn out good.
Don’t expect to record more detail than you can see visually in the eyepiece at the time you are photographing.
Once you have mastered the technique, experiment with different films, different focal length eyepieces, and even different filters.
