Re: Orion 4.5" opinions

From: Jon Isaacs (jonisaacs_at_aol.com)
Date: 11/24/04 

Date: 24 Nov 2004 15:09:46 GMT

>The 4.5" StarBlast is an equivalent table-top choice.
>Even lighter and more compact. Also comes with an
>EZ finder, which many prefer.
>
>

I think it is important to point out that the Star Blast is an F4 scope rather
than the F8 of the XT-4.5.

F4 will be much more difficult to collimate and will have much more coma. The
steep angle of the an F4 light cone will also cause serious aberrations in most
eyepieces..

jon

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