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G'Day Mario,
I have an Olympus C5060WZ which I have and sometimes do still use afocally.
For planetary work, the shutter speeds will be short as has already been mentioned and I suggest that this is probably what your camera is best suited to. My C5060WZ has a maximum shutter time of 15 seconds, anything longer than that requires holding your finger on the button which, quite frankly, is a waste of time. The other problem you will probably find with long exposures is noise. While you can deal with it after the exposure, obviously the less you have during capture the better. Most Olys just won't complete with a Canon dSLR unfortunately for noise levels. If you accept that your camera is best for planetary work, you can get some great photos using afocal projection.
I have used two mounting methods for afocal projection: handheld and mounted via a digi-T ring. For handheld, obviously, just hold the camera up to the EP and shoot. It can be hit and miss, but you should be able to manage an acceptable hit rate for bright subjects like the moon.
The digi-T ring is a great little idea. It attaches the front of your camera lens to the eyepiece. You will need both a digi-T ring and a T thread adapter to suit your camera. The T thread adapter screws into the filter thread on the end of the lens of your camera. The digit-T ring is attached to the eyepiece by removing the rubber eyecup, then 3 small grub screws attach it to the eyepiece. The EP is then screwed into the T Thread adapter on your camera and you're away. Sounds fiddly but it isn't too bad.
The biggest drawback I have found with the digi-T method for my camera is when the camera is pointing up or down at a steep angle, the weight of the camera overpowers the zoom motor and the camera generates a zoom error and shuts down. It powers back up again OK, but it's a nuisance and probably isn't too good for the camera really. It can be avoided by keeping the camera flatter by using a star diagonal and rotating it to suit.
I think I got my digi-T from Astro Optical Supplies, and I think I got my T thread adapter from Adorama in the US (I couldn't find one for my camera in Aus but you never know - have a look around).
Al.
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