I got first light on my "new-to-me" AVX mount with the Celestron 130 SLT OTA. I bought it on Astromart about a week ago. I took it out the day before yesterday but was having problems getting it aligned. I've never used an equatorial mount but it was just weird. Turned out the firmware in the handset was for an ALT/AZ mount (It said "Nexstar Ready" rather than "Advanced VX"). So I reflashed it with the EQ mount the following morning and now everything is working great. It came with a polar scope on it so I just did an alignment with that for now. I didn't do the All Star Polar Align. I did a two star align, with 3 calibration stars. I set it so that Polaris tracked the circle of the polar scope when I rotated the RA axis.
Overall, I'm pretty happy with the AVX. I did M16 without a filter on the Ultrastar. For the rest of the Ultrastar pictures, I put an Optolong CLS CCD filter. The sky was murky at the horizon with a bright orange glow.
The first three were done with the ZWO ASI185MC and the Orion Guidescope riding on the 130 OTA (my e-finder).
M25 - 21x3s 340 gain
M29 - 169x1s 363 gain (I did this one simultaneously with the Ultrastar-C's M29)
M39 - 11x1s 363 gain
The following were done with the Ultrastar-C on the Celestron 130 SLT (AVX mount) with an Optolong CLS CCD
M102 - 5x45s
M28 12x8s 2x bin
M26 - 6x45s
M21 - 7x10s
M18 - 6x10s
M15 - 4x30s
M17 - 4x45s
M20 - 6x45s
M29 - 7x5s
M16 - 6x45s
Edited by Robrj, 30 July 2016 - 04:45 PM.