Jerry Hubbell - Explore Scientific VP Engineering
On Sun, May 26, 2019 at 12:32 PM, Jennifer Shelly wrote:
I was getting very frustrated with the EXOS-2, so I took the plunge and purchased an ES PMC-8 G-11 and the difference between the performance of these mounts is night and day.Hi Jennifer,
First I want to thank you for sticking with the PMC-Eight system on your new G11 mount. I know you could have purchased it from Losmandy with the Gemini system, so I appreciate that. I think as you said you will find the guiding results improved as compared to your EXOS 2 PMC-Eight mount. If you are powering your mount with the AC adapter you might want to upgrade the PMC-Eight firmware for the G11 to the 9T12 version which provided more motor current boosting it from 900 mA to 1300 mA per motor. This upgrade will provide a small improvement in tracking smoothness and improve the auto-guiding performance a bit also. When I updated the firmware for the G11 PMC-Eight in our observatory, the tracking rate improved (using the TDM, not auto-guiding) from 0.5 - 0.6 RMS to 0.35 RMS. YMMV depending on how you tune your auto-guiding system.
Thanks again, I look forward to seeing further good reports from you in the future.
Vice President of Engineering
Explore Scientific, LLC.
jrh at explorescientific.com
1010 S. 48th Street
Springdale, AR 72762
Author: Scientific Astrophotography: How Amateurs Can Generate and Use Professional Imaging Data
Remote Observatories for Amateur Astronomers: Using High-Powered Telescopes From Home
Mark Slade Remote Observatory (MSRO) IAU MPC W54 Equipment
Mounts: ES PMC-Eight G11 + Telescope Drive Master (TDM)
Scopes: ES 165 FPL-53 ED APO CF, ES 102 FCD100 ED APO CF
Cameras: QHY174M-GPS + FW, QHY163C
Misc: 3-inch 0.7x Focal Reducer Field Flattener, Filters: Luminance,
Red, V-band Photometric, Diffuser, 200 lpmm Spectral Grating
Software: MaxIm DL 6, Cartes du Ciel, Astrometrica, AstroImageJ, AutoStakkert!