Sent 6/6/2015 10:45AM
>>Simon,
As you may have seen from my earlier note, we had some sun yesterday.
Your returns had also just arrived, so we opened and tested them as well.
Skies weren't ideal with mediocre seeing, but they were the best we'd had in weeks, and they cleared a bit over the afternoon.
I was surprised to see the Quarks performed correctly when I personally sun tested them.
Of the 9 you returned, one was on the low end of uniformity with our ever-tightening uniformity standards.
However, all of the units came right to focus, arrived on band and showed a sharp edge and good chromospheric detail.
I struggled to imagine how these units could have suffered the problems you described with not coming to focus. As I was testing, with this in mind, the only idea that I could imagine was that if a person testing them in bulk didn't re-focus after each Quark swapped from the eyepiece, then naturally the subsequent Quarks wouldn't be in focus. I really couldn't imagine any way these 9 Quarks suffered the "won't come to focus" behavior you described by phone.
I had our staff image through each of them even though it was partly cloudy. I have attached raw captured images through all 9 units you sent over. These have no sharpening or gain adjustments and are as they came right out of the camera.
The imager seemed to prefer the view through #8 with a blue wing shifted tuning so I'll probably fine tune that unit a bit.
I see by the tracking number that my last shipment of 3 units has been received.
If you can kindly confirm the status of those units I sent. Check them with your staff member and perhaps go over HOW the original 9 were tested and see if you can duplicate the problem.
I am hesitant to send further units out until we can get some resolution about the issues you and your staff experienced so that we can make sure we are addressing any concerns you might have.
Give me your thoughts.
Clear skies,
jen
Owner,
DayStar Instruments LLC - www.DaystarInstruments.com
DayStar Filters LLC - www.DayStarFilters.com
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