I own the original version of the William Optics Z61 refractor with the Flat 61 (not adjustable) field flattener. The Flat 61 comes with a camera rotator but no degree markers and only a small adjustment knob. This makes it difficult to use especially on those cold winter nights resulting in several adjustments being necessary before you have the framing right. Originally I looked at the William Optics branded CAA for the Z61 knowing that it would fit plus I like the quality of William Optics products. However, the CAA is out of stock so I looked at the StellaLyra version, for a start FLO had it in stock and its a fraction of the price. So I took a punt and was not disappointed. Obviously it has the benefits of having degree markers and a larger adjustment knob, however, the quality is there as well. Rotation is firm enough to allow for smooth rotation and give you the confidence that it's not going to slip. Highly recommended.

I bought this instead of the WO version it works a treat, I have a WO telescope in red so matches aesthetically and I use it with NINA when lining up and rotating the target to photograph, also a speedy delivery from FLO

My rotator finally arrived and I can say that it fits perfectly in the focuser. Turning left and right is smooth and effortless. I will test it in practice when the sky is clear of clouds, wind and storms. I hope it will be soon. I recommend it.