A direct replacement (utilizes existing bolt-holes) Low Profile CNC machined 10:1 dual-speed focuser designed for Skywatcher and Celestron Newtonian telescopes with apertures 8-12 inches (tube diameters 9-15 inches).
Incorporates drawtube extension so also suitable for visual use, even when using long focal length 2" eyepieces!
|Average Rating (4 Reviews): |Fantastic Focuser, did what I needed it to do.
Thursday, 18 July 2019 | Simon
I decided to get this focus to see if I could achieve the neccesary in focus on my Quattro to use the ASA 0.73x reducer, I didn't want to have to re-drill the tube or move the primary, so this was a try out to see if it could be done......it works!
I didn't have the screw hole issue that others had, I just placed the screws in first and then tightened up the nuts on the other end, but yes the screw holes are a bit awkward if your nuts are fixed to the tube. I think the focuser is better than the stock focuser that came with the quattro from a build perspective too. I am overjoyed that I can now image at F2.9 this season.
Simon Todd Astrophotography
Sunday, 20 January 2019 | Kenneth
This is a good quality focuser for the price. My first impressions when I opened the box was the high quality finish with of sturdy metal base and pleasing appearance. The fine focussing knob worked a treat on my homemade Newtonian reflector compared to the old rack-and-pinion focuser it replaced.
The only downside I found was that two of the four boltholes were positioned very close to, and even partly underneath, the focusing barrel. I therefore found the fitting and tightening of the bolts rather awkward. It seems to me that this is a design fault and I see no reason why the manufacturer could not have placed the two holes at a slight distance from the barrel for easy tool access. Hence the reason for the 4 star rating.
Having said that, it is still worth every penny for it's high quality and excellent performance.
Wednesday, 28 March 2018 | Steve
This is not the best focuser on the market but is very good for the price. Nice smooth action and good fine focussing. I would not recommend if you expect it to carry a lot of weight such as a filter wheel or DSLR camera but for observing is great. I replaced the stock single speed focuser on Skywatcher 8" Dobsonian and was a direct replacement, no need to adjust the holes in the tube. As I say there are better focusers but probably 2 to 3X the price as well so for observing more than adequate.
Wednesday, 20 July 2011 | Todd8137
brought this a while ago and is 100%better than the standard rack and pinion i bought it for photo work with a dslr/webcam and focus is so much more easier and precise get one you will never look back