Hi Greg, Is there a way to eliminate a variable and actually measure what you think is focuser sag? It may be that it is related to the Vixen product....
Hi Greg, I have a ZS66SD that I used for guiding and imaging! I was noticing some nights my images would be fine and other nights I'd have a focus gradient...
Greg, Have you thoroughly examined your mounting of the 66 or 90 on the Vixen looking for mount flexure? As you have the same issue with the 66 and 90...
Does anyone here have any official or unofficial updates/news/hint/rumors about the next batch of AFR-IV flatteners? I have called and emailed a few UK stores,...
It's definitely worth looking at how the scopes are mounted in relation to each other, as that may be a factor. I would expect a piggy-back arrangement to...
Greg, Have you thoroughly examined your mounting of the 66 or 90 on the Vixen looking for mount flexure? As you have the same issue with the 66 and 90...
Hi, Recently my WO 80/480 Apo hit hardly the ground inside its backpack. Although it was very well protected and no apparent damage ocurred in the tube nor any...
Steve, I haven't heard a word from William Optics regarding replacement of the recalled Flattener IV. Here is a note I just sent to Kevin Lan at William...
Make sure it is not the focuser that is causing the problem. I have been told there is no way to collimate these cells, no one in the USA anyway has any idea...
Hi Paul, We sincerely apologized for the delay on your FLAT-4 upgrade. Someone from HQ will get back to you on the ETA of delivery. Again, thank you for your...
Hey Everyone, First time posting here. I am new to refractors and after researching for a while decided on an FLT 98 Aluminum tube, I also have the quick...
Does anybody know of a counterweight system that will attach directly to either a standard vixen-size dovetail bar, or to a vixen dovetail bar shoe? Reason for...
Hi all I am looking for an 1.25" VR-1 Minus Violet filter in good condition I will pay all fees and postage and pay with paypal Thanks for looking Vars...
Thanks Floyd. Focuser is threaded in my WO scope and tubes are CNC machined. As far as I understand focuser seems to be mounted fairly square to the lens cell...
I sue a a laser to check mine. I have a Lasermax which has a graduated scale projection and when projected on a wall it will show exactly where the beam exits...
Floyd, I have a 2inch laser collimator for my Dobsonian which I could use as a single dot laser taking apart the Barlow attachment but I understand that some...
Welcome, Lee. I'm a Megrez 90 owner and don't know if my suggestion apply also for the FLT98, but I had the same problem when installing my Red Dot Finder. ...
Hello Gianluca, Thanks so much, The layout of the screws on your megrez looks the same as the '98. I just want to make sure that I don't damage anything in...
The RDF come with its screw and basement. Don't know your finder. You have to unscrew a little cover to reach the hole and screw in yours. The screw is a M5...
The nylon tip on the thumb screw that locks the draw tube has fallin off again, so now I have two nylon tips inbetween the draw tube and focuser housing. When...
I had a WO Blue Zenithstar 66 and it's the cutest thing, but I want more apperture. Is there a big brother to the Zenithstar 66, also in Meade blue that I can...
Thinking about this one further, have you ruled out movement within the Vixen scope optic train? Mirror movement is common with SCTs, so could it be that the...
Thanks Floyd. Focuser is threaded in my WO scope and tubes are CNC machined. As far as I understand focuser seems to be mounted fairly square to the lens...
Hi all, I just emailed David Yang regarding rumors of WO closing their USA office following posts on CN on this topic. He replied that they are going to be...
Yes, like Timm said, this will be a temporary closure. Expect to see them back in operstion, sometime May/June. In the meantime, it seems like there might be...