Image erecting diagnals....Help!!!

Hi,
I'm an astro-buff, have been using a Stellarvue Nighthawk double duty as a terestrial spotting scope for a couple years now. The false color on high contrast objects does bother me a little, but inverted immages drive me knuts when using the scope for terrestrial viewing. I have many nice widefield eyepieces, TV Naglers etc... and they work great with my 90°Everbright diagnal. However, I have not found a high quality 45° erecting prism, that does not vinette (sp?) with most of my widefield eyepieces. Lately I have been considering upgrading my scope to a used APO such as the SV-85 or TV-85. I've seen several used OTA's on Astromart sell for under $1200. What keeps holding me back is, I feel my cheap erecting prism is a weak link in my optical chain, that prevents my from fully enjoying my expensive optics. I was hoping someone here might be able to suggest an affordable remedy.

I think you are out of luck, finding a high quality 2 inch image erecting diagonal that is also corrects the image side to side is pretty much a no go ...

Personally I use my Pronto with a 2 inch Everbright and have no problem with the right to left thing. In fact, what I find more bothersome are scopes that are correct image.

Sorry I can't help.

Jon Isaacs

James:

Herb just posted a link to a Williams 2 inch 45 degree diagonal in the equipment forum.

I checked it out. The one thing I noticed was that it only had 31mm of clear aperture, at bit under 1.25 inches.

This would seem to cause vignetting with those widefield eyepieces you are hoping to use.

Another option is the TeleVue 60. A true APO, it is quite compact, a real advantage for birding because the scopes like the TV 85 are really too big for birding. The TV 60 is limited to 1.25 inch eyepieces but with a 360mm focal length, thats not too much of a problem. With the 22mm Nagler, it should produce a 5 degree FOV.

jon