56 • Celestial Photography
The following table lists exposures for eyepiece projection with a 10mm
eyepiece. All exposure times are listed in seconds or fractions of a second.
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.
Planet ISO 50 ISO 100 ISO 200 ISO 400
Moon 4211/2
Mercury 16842
Venus 1/2 1/4 1/8 1/15
Mars 16842
Jupiter 8421
Saturn 16842
Table 7-2
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