10Micron

We do have several adapter for Skywatcher, especially
RT-Adapter M90x1.5 Diamond Steeltrack® (Skywatcher) # 2957284 (for telescopes with male M90x1.5 thread)
RT-Adapter M90x1 Diamond Steeltrack® (Skywatcher) # 2957283 (for telescopes with male M90x1.5 thread)
RT-Adapter Ø 97mm Diamond Steeltrack® (Synta / Celestron) # 2957282
if the M68-adapter does not fit which is included in the scope of delivery of the SteelTrack.
Unfortunately, we do not know which adaptation is used on your specific model or if it has changed over the years.
On https://www.baader-planetarium.com/en/blog/clicklock-clamp-for-your-telescope/ , you can find a desription on how to measure a thread, if you don't know which thread is used on your telescope.

Yes. The #93625 ends up with a T2 male thread (M42x0,75) this wide T-ring has a female T2 thread. It´ll match. Please be aware that the
#93625 can be a bottle neck - it can produce obstruction (dark corners at the image) Depending what telescope you´re using a #93633-A or similar
could be a better solution.

Yes, our 50.4mm unmounted filters fit into the QHY CFW 3 filter wheel

This adapter adds 0.7mm to the optical length. All such technical data can be found on the product page under the tab "Specifications"

The Flange has an outer diameter of 99mm and the inner diameter to accommodate the mount is 60.2mm.