Comments on: is the focal length in a telescope better when it is larger or smaller? http://www.telescopebuyingguide.com/blog/is-the-focal-length-in-a-telescope-better-when-it-is-larger-or-smaller/ Thu, 17 May 2012 20:56:04 +0000 http://wordpress.org/?v=2.7 hourly 1 By: Nyx http://www.telescopebuyingguide.com/blog/is-the-focal-length-in-a-telescope-better-when-it-is-larger-or-smaller/comment-page-1/#comment-2509 Nyx Fri, 26 Mar 2010 11:40:05 +0000 http://www.telescopebuyingguide.com/blog/is-the-focal-length-in-a-telescope-better-when-it-is-larger-or-smaller/#comment-2509 Yes, you can build your own telescope and there plenty of resources for you to tap into -<a href="http://www.secretfinance.com/offshore/offshore-trust.htm"> Nyx</a> Yes, you can build your own telescope and there plenty of resources for you to tap into - Nyx

]]> By: Viola At Neon http://www.telescopebuyingguide.com/blog/is-the-focal-length-in-a-telescope-better-when-it-is-larger-or-smaller/comment-page-1/#comment-2508 Viola At Neon Wed, 24 Mar 2010 22:03:50 +0000 http://www.telescopebuyingguide.com/blog/is-the-focal-length-in-a-telescope-better-when-it-is-larger-or-smaller/#comment-2508 Yes. One question at a time, please.<a href="http://www.pdabuyingguide.com/blog/"> Viola At Neon</a> Yes.

One question at a time, please. Viola At Neon

]]> By: Adam http://www.telescopebuyingguide.com/blog/is-the-focal-length-in-a-telescope-better-when-it-is-larger-or-smaller/comment-page-1/#comment-2507 Adam Sun, 21 Mar 2010 16:54:47 +0000 http://www.telescopebuyingguide.com/blog/is-the-focal-length-in-a-telescope-better-when-it-is-larger-or-smaller/#comment-2507 This is known as the f-number, focal number, or focal ratio. F-numbers are common throughout all imaging fields. It is a method for describing the resolution of a certain imaging tool, such as a telescope. f/4.5 is about average for a 10" telescope. According to Wikipedia, "the f-number is the focal length divided by the "effective" aperture diameter." The higher the f-number, the better. Anyone can build his or her own telescope, if he or she knows how to and has the resources. I am currently borrowing an 8-inch f/6 telescope that was home-made :-)<a href="http://www.greattoolsusa.com/clamps-4363"> Adam</a> This is known as the f-number, focal number, or focal ratio. F-numbers are common throughout all imaging fields. It is a method for describing the resolution of a certain imaging tool, such as a telescope. f/4.5 is about average for a 10″ telescope. According to Wikipedia, “the f-number is the focal length divided by the “effective” aperture diameter.”

The higher the f-number, the better.

Anyone can build his or her own telescope, if he or she knows how to and has the resources. I am currently borrowing an 8-inch f/6 telescope that was home-made :-) Adam

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