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newbie with a Orion Starmax 102mm

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#1 Guest_**DONOTDELETE**_*

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Posted 22 August 2003 - 04:02 AM

Hi, I recently purchased my first telescope and was hoping to take some pictures through the scope (using it as a telephoto lens). I have the needed T-ring adaptor for my camera (olympus OM-1) and I was just hoping I could get a few pointers on the easiest way to focus the camera once it's attached to the scope :question:?
Also, what eyepieces would you recommend with this scope? I currently only have a 25mm sirius plossl. Hope someone can help... :confused: thanks

#2 Guest_**DONOTDELETE**_*

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Posted 22 August 2003 - 08:23 PM

Your OM-1 should have interchangeable focusing screens. The existing screen makes it hard to see faint things like stars. I would get one that has good transparency. I think they have one that uses a split screen; when an object comes together across the split, then it's focused. For star fields, just focus for the smallest star points.

I would not recommend going much lower than 25mm, my 127 Mak will not illuminate the full field of a 40mm. I have a 17, 10 and 6.3mm eyepieces with mine, but the 6.3 seems to run it a little too high; the 7.5mm may be a better choice. If you get the 12.5 and 7.5, you will have 50, 100, and 170 times, which is a good range for this scope.

Good Luck,
Kent

#3 Bob Pasken

Bob Pasken

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Posted 23 August 2003 - 08:10 AM

I think that Olympus made a screen that was clear except in the center where it had a fine ground glass. You could focus a bright star in the ground class and then move to the field you want to photograph using the clea part of the screen.


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