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which of these two?

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Re: which of these two?

Postby Jne_K on Fri Sep 11, 2009 6:03 am

Hi

Resolution is the ability to separate two close objects, not the size of the objects, themselves. It is listed in arc seconds. That is the degree of separation between two objects - the ability to separate them or think of it as the space between the objects. A smaller number is better, not a larger number. Further, the listings are theoretical, not based on actual testing or performance. Do not read too much into these, since anyone who makes an 85mm scope can claim much the same thing.

"Maximum useable magnification" listings by manufacturers are absolutely advertising nonsense. Ignore them. It is emabrassing to have to deal with these from my end as a sales person, especailly when all companies do it and all companies know better. The magnification you SHOULD and WILL actually use use on a specific telescope is completely different. The amount of magnification you use will depend on the type of object being observed, observing conditions, the size and quality of your scope, your observing experience as well as your personal preferences. There is no magic formula for magnification options that translates into anything real.

Again, as with the previous posts, here, you don't get something for nothing. The Meade 5000 is a good value, but in my tests, still not up to a Televue. if you want Televue quality and performance, you are going to have to spend the bucks and get a Televue or spend even more money and get a Takahashi or Astrophysics. These three are in a class of their own. There are no shortcuts, advertising bull, aside.
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Re: which of these two?

Postby kylemac23 on Mon Dec 21, 2009 11:41 pm

Hello again, I am still looking at the televue 85 and had a qusetion about the image quality while using a erecting prism. When using one would the televue still have a better image vs. the best top of the line spotting scope? Thanks again.
kylemac23
 

Re: which of these two?

Postby Jne_K on Tue Dec 22, 2009 10:08 am

Hi

An erecting prism does indeed degrade image quality and that is exactly why most owners of Televues elect to stay with the 90 degree mirror diagonal or the optional Televue 60 degree diagonal. We get used to the uprigt, but reversed images of the mirror diagonal. In my opinion, it is well worth it.

Will the Televue still compete? Sure it will. Just your decision on how you want to set up the scope.
Thanks for posting with us
Joanie K - Your personal optics expert

Forum: http://www.opticsplanet.com/msgboard
Blog: http://blog.opticsplanet.com/
Store: http://www.opticsplanet.com/

Phone: (800) 504-5897
Fax: (847) 919-3003
Jne_K
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Posts: 7665
Joined: Wed Sep 24, 2003 3:09 pm