Re: Getting a 10" dob...question on adding things to cart.

From: FAB (blhtvl_at_earthlink.net)
Date: 08/23/04 

Date: Mon, 23 Aug 2004 02:52:11 GMT

I just bought the 10" Hardin because of the really good reviews. I'm
hoping to receive it tomorrow. Cost, however, was about a tossup when
the "free" laser collimeter with the Orion is factored in.

On Sat, 21 Aug 2004 22:32:07 -0700, "Tom" <tom@wallyworld.net> wrote:

>Sorry for the fuss here tonight. I have settled on the Dobs, rather than
>the
>adventure into Apochromats. It's the money.
>
>Nobody has said why the Orion XT10 is worth 50 bucks more, and the
>Hardin comes with Messier list and a moon filter if I remember correctly.
>I'll go with the Hardin I guess. There is a barlow lense offered for 50
>bucks
>as an accessory. I assume this scope can handle a 300x magnification, but
>the
>barlow is achromatic. Would an achromatic barlow cause chromatic aberation
>in a newtonian scope?
>
>Also, there is the laser collimator. I read some literature here on star
>testing, so
>does this make the laser obsolete? And one more thing, bear with me
>here....
>is correcting the optics just a harmless excersise in trial and
>error...lighly tweaking
>the screws? I have read how to tell if something is wrong, and even what is
>wrong, but not much on which screws to tweak. -Thanks.
>Tom
>