Astronomy Site: Meade Advanced Products Users Group Archive: [M]: RE: Re: Eyepiece Projection

 
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Subject: [M]: RE: Re: Eyepiece Projection
From: B. S. Jones
Reply To: mapug@shore.net
Date: Tue Jun 29 03:51:00 1999

While you're here, how about checking out the Astronomy Book List ?

>the error when you get your film developed or display your digital image.
>An orthroscopic produces the flattest FOV, albeit a more narrow FOV than
>most modern eyepieces.
>The easiest way to see this visually is to use the eyepiece projection
>arrangement while trying to focus the full moon at a low F ratio. You will


I use a celestron 9mm eyepiece of this type that I bought as secondhand
twenty years ago for this purpose and I always wondered why it worked and
others didn't.

thanks

Brandon S. Jones

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