Wise words. We had a similar issue here.
Sometimes it's easy to make some errors and a lot of times when I'm on a phone or listening to an observation that was made when one was judging a scope they got, I'll often find clues to problems simply by listening to what an observer may or may not have been making pertaining to setup, location etc. This is why I've always advocated that the amount of experience the observer has is paramount. When observers first start out getting into these shootouts, some may not even know what it is they don't know, and premature decisions can happen and it's happened to me as well.
I remember a big awakening I had when I started viewing with the guys at Charlton Flats during the mid and late 90's on into the early 2000's. Those guys were way out of my league.
I suspect as a vendor Daniel, you are the primary punch bag when a disgruntled customer believes he's been sold a duff scope.
When I bought an FS128 back in early 2003, I took it round to a friends, set it up in his back garden and aimed the scope at Jupiter. The view was perfection! Then I swung the scope round and looked at Vega. The view horrified me, as although it was circular and steady, it didn't focus to a point source. My friend said "There's nothing wrong with that scope, its the best planetary view I've ever seen", but I wasn't listening. I'd paid a fortune for a scope that didn't bring Vega to an Airy disc. I was very upset and phoned the vendor the next morning. He arranged for the scope to be collected the next day after I'd assured him I'd been an observer for many years and I knew what I was talking about.
The currier didn't arrive and it was now weekend. I decided to take the FS128 to my local astro club so as to get some moral support and sympathy. Who was I kidding!
As I walked up the hill to the main observatory with the FS over my shoulder, and looking like a very angry version of Ken Fulton, I was greeted by complete hysterics. My supportive friends were literally rolling round on the grass, blood red with laughter, and assuring me that "Takahashi don't make bad optics".
Peter, who runs the astronomy centre, took the refractor off me and mounted it on a Vixen GP. Then aiming it at Vega said "That's about as perfect a star image as I've ever seen!" I climbed over the laughing bodies, that were at this point almost wetting themselves and were unable to breathe. Then looking through the eyepiece I saw a perfect Airy disc.
When I explained the scope had given the best view of Jupiter I'd ever seen, but couldn't produce a star image, the ridicule accelerated to a whole different level. Even today they love to remind me of that fateful evening, and how I nearly gave the poor vendor a heart attack. I phoned the vendor on his mobile first thing on Sunday morning to apologise, and strangely, struck up a good friendship that has lasted almost 20years. He's a thoroughly nice guy and he's also my first port of call when I want to buy anothe scope. And yes, he still sells to me!
The FS128 gave superb views of all objects, and never again showed the blurry star image it did on that first night. Looking at the site from which that first look at Vega was made, there was a line of glass conservatories that may have been the cause of the blurring due to gentle heat rising from the.
It certainly taught me a valuable lesson in both humility and observing experience. I used to think that heat always caused turbulent images, but it doesn't always.
Detail in M1 as seen through the FS128
Edited by mikeDnight, 20 March 2020 - 11:44 AM.