I am thinking about purchasing the Expanse 20mm to fill in the gap between my Nexstar 15mm and Nexstar 32mm. I use these eyepieces for afocal video and would...
... Jim, I don't have either of these eyepieces on hand but I have examined both in the past. Both eyepieces have removable rubber eye guards. The concern that...
Hi Phil, Thanks for the response and the info on the Expanse eyepieces. That does make sense. I really do enjoy using this scope whenever it is clear or...
... and would appreciate any information about them. > Patrick ... Hi Patrick, A lot of good avice here from everyone. Eyepiece preferences can be very...
Hi all, Has anyone here done a side-by-side comparison between the older Orion ST-80's, and the newer ones with the "fully multi-coated optics."? If so,...
Hi: The only differences I've noted have been between the "real" ST80s, the Synta made scopes, and the cheap plastic focuser equipped knockoffs. Peace, Rod...
I have the ST80-A from Orion.It came w/ the tube rings, 8x40 finder, and 90 degree diagonal. It has the fully-muli-coated objective. I don't have an older one...
Hi Mary, Thank you for the info on the Epics. I think that I will give them a try. The 3.7mm sounds right for the Moon. I have only observed two comets in my...
... to "train my brain" as you suggested. It has been awhile since I looked through my Sirius Minus Violet filter. I traded my Orion ST-80 to my wife since it...
Hi Everyone, Another question here, does anyone have any ideas to improve the contrast of the ST80? Any ideas other than blackening objective lense edges or...
... lense edges or tube interior? > Patrick ... Hi Patrick, Get as good a mirror diagonal that your budget allows. I got our first ST80 in 1997--for my then 15...
... Blackening the objective edges is a typical modification and its pretty easy and inexpensive. I often question how useful it really is but even if the...
Hi Mary, Thank you for the good information and the link that you sent. Hale- Bopp was the first and bightest comet that I ever saw. I viewed it with a...
Hi Phil, I agree with you about the eyepiece being connected to improving contrast. I recently took apart my 6mm Expanse and blackened the edges of the frosted...
... Patrick, This is an interesting article and technically correct. I have to take issue with one aspect though, the optical detector that they used wasn't...
Hi Phil, You are correct, it was not the human eye that was used. It seems that eyes vary from person to person. Mine are sensitive to light and color than...
Hi All, Anyone here ever use a Antares 5x barlow w/ an 80f5? I was considering purchasing one and would like any input. Thanks. Clear Skies, Patrick...
The barlow is OK. 5x is WAY too much for the ST with any eyepiece. Peace, Rod Mollise Author of Choosing and Using a Schmidt Cassegrain Telescope...and... The...
Hi Rod, Even with 32mm and 26mm plossls for the planets it would be to much? Is there any usable setups you could recommend with decent eye relief for the...
... Borrow someone's (2.4MM, 3.2MM, 4MM) Burgess/TMB Planetary and see if you like it. I love 'em, and they're not terribly expensive. I use them in all my...
... With the pretty much "standard" 25mm supplied with most of these telescopes, you'll get 80x with a 5x barlow. 62.5x with a 32mm. A 2x or 3x barlow might...
Hi Whitney, I do hope to try some out soon, I don't know anyone that has any around here. Clear Skies, Patrick ... much? ... relief ... room. ... if ... use...
Hi Jerome, Thanks for the info, I do have a 6mm Expanse but the glare reflecting off of my eyeball becomes a nuisance when observing Jupiter (due to the...
Several companies make eyepieces that essentially made with a built-in Barlow -- I have a number of the Orion Lanathum ones, which have about 20 mm eye relief,...
Hi All, After successfully splitting Izar @80x, Epsilon Lyra @66.6x (could elongate at 47x w/ 17mm plossl and 2x barlow), Alula Australis @133x and 170x, and...
Has anyone managed to get more reduction on their ST80 with the Mogg focal reducer? My focuser seems to want about 1/2 inch more in focus travel when I add an ...
In total, I have owned and extensively used three ST80's over a period of 6 years. All were Synta-made. My comments are: - Synta makes both, the metal and...
The Vixen? I guess the thing with that is "why bother"? For less money you can get a William Optics 66SD ED scope, which, despite the smaller aperture will...
Hi All, After re-flocking and adjusting the objective lens slightly I split Delta Cygni with my Orion ST80! This morning shortly after mid night I used a 4000...
Congratulations Patrick! Gives me something to aim for with my 80WA. Flocking the inside of the dew protector hadn't occurred to me, but I have blackened the...
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