Over the last 25 years of owning nice optics, I have learned the hard lesson twice about storing anything in a state with high potential energy for gravity to take advantage of. Once during a 7.2

Store your refractor any which way you want. If you store with lens pointing down, make sure that nothing can fall onto the back of the objective from the eyepiece end. Roland

I am currently designing an observatory and will have limited space inside to store my telescopes. My architect prefers to design vertical storage to occupy less room, but my instincts were to think

I am getting this message upon startup of APCC since updating to v1.9.4.3. It will not allow connection of APV2 driver. I have to restart APCC multiple times to get it to start normally. Not sure what

On Wed, Mar 30, 2022 at 05:26 PM, christian viladrich wrote: Amazing !! Christian Le 30/03/2022 à 15:29, Roland Christen via groups.io a écrit : Here is another deep sky image taken at our remote

It's probably similar to what's required for the 160 F7 TEC refractor. The 80.8 back focus is achieved with the matching spacer that is added to the back of the QTCC. In the case of the 160F7 TEC,

The site does not show them in stock though: 0.72x Quad Telecompressor Corrector (QUADTCC) - Astro-Physics

On Wed, Mar 30, 2022 at 08:49 AM, Roland Christen wrote: We have a limited number available, but he who hesitates is ....... required to wait for the next batch. :-) -- Dean Jacobsen Astrobin

On Sat, Mar 19, 2022 at 07:52 PM, Roland Christen wrote: I doubt that Stellarvue will be as forthcoming, but I can pretty much know what the design is. At F8 it is the easiest to correct for field

Amazing !! Christian Le 30/03/2022 à 15:29, Roland Christen via groups.io a écrit :

We have a limited number available, but he who hesitates is .... Rolando

On Sat, Mar 19, 2022 at 04:52 PM, Roland Christen wrote: For the TEC scopes, Yuri provided me the exact optical design, so I didn't have to guess (I had a pretty good idea since oil spaced fluorite

Here is another deep sky image taken at our remote observatory in Chile by our Howard Hedlund and Dave Jurasevich duo: https://astrob.in/xkso06/0/ Rolando -- Roland Christen Astro-Physics

I have a 600E (I think an early version, with no special capabilities) carrying a 155EDT. Can any upgrades be made to it, internally or in the hand controller? I may have asked George this earlier, in

I have two AP 600 Goto mounts I use with a CP2 controller and modern keypad. I use them with my AP 155 F/7 and LZOS 130 F/9.2 and have experienced no problems at all. JimP Get Outlook for iOS

I'm a sucker for the really small ones sprinkled around. Rolando

Anant, Thank you for your input. It is good to know the Celestron dovetail is compatible. I do have an ADM dovetail on the way to me. At least this way with two D-style mating surfaces I can be

Another beauty Roland and I love the stellar core. Jeff

Just beautiful Roland.

Nice! -- Dean Jacobsen Astrobin Image Gallery - https://www.astrobin.com/users/deanjacobsen/