Sunday, November 13, 2005

More Eyepiece Musings

Here's the thing, Lomo has all these telescope eyepieces left over from the panic attack deflector system. So I decided to check some of them out before he sold them. Trouble is, I like all of them in some ways. First off, today I went through the lot of potential for sale ones and compared them to the not for sale ones. I used them in the Lomo Astele 95mm with a Televue enhanced aluminum star diagonal for looking at a playing card of Senator Kerry dressed up like a Navajo at about two hundred feet plus a printout of an RGVECB subtopic.

The ones that worked really well for reading the text, backwards, dumbing down the secondary image mirror on a sunny day, color fidelity and clarity of image were a 16mm UO Konig giving 75x, a 20mm TV plossl at 60x, and amazingly a 12.5 UO ortho at 96x. By golly if you could line up a bird in that ortho you could see its pecker. Of the potential sale ones, a 25mm Lomo plossl giving 48x is no longer for sale. It's almost as sharp as a 25mm UO ortho and has a better FOV.

Another eyepiece that surprised is a 7.3-22 Apogee zoom. It seemed no count the first time in the 133.5 Lomo, but it seemed really good and handy too, in the 95 and in a C90.

The Celestron Xcels also gave good images in the C90 but they are just too big and clunky for terrestrial viewing in little maks. They may still be for sale since those orthos are so much more compact.

The GSOs are Ok, but they overdo the green tint and are just a tiny bit harder to focus than the other brands. I do want to keep the 15mm for sure.

As usual, low power is a problem. The 30mm Ultima is sharp, but that's 40x. Guess I'll have to keep the 40mm GSO too, until somehting better comes along.

The preceeding is yet another example of displacement behavior on steroids.

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