Larry,
The AZ3 is the inexpensive alternative. Short of a photo tripod, I don't think they come any cheaper than this mount. I've had a PST mounted to mine and at 3 pounds the AZ3 is very stable without significant vibration. I had an Orion 80mm short tube that it would have probably handled without a problem, but I can't speak to its stability with a larger (100mm or 120mm) refractor, as the legs are a very light weight aluminum.
If you decide to get one, I suggest you clean the thick grease on the gears and inspect them for burrs. Replace the grease and it should move more fluidly.
Best of luck during your deployment.
The AZ3 is the inexpensive alternative. Short of a photo tripod, I don't think they come any cheaper than this mount. I've had a PST mounted to mine and at 3 pounds the AZ3 is very stable without significant vibration. I had an Orion 80mm short tube that it would have probably handled without a problem, but I can't speak to its stability with a larger (100mm or 120mm) refractor, as the legs are a very light weight aluminum.
If you decide to get one, I suggest you clean the thick grease on the gears and inspect them for burrs. Replace the grease and it should move more fluidly.
Best of luck during your deployment.
