I bought these thinking they would be a step above my slightly wobbly eBay specials. Whilst they are very well made, they are simply far too tight a fit to my ZWO EOS filter drawer adaptor. Once I had committed to turning it on, I needed soft jawed pliers to remove my camera again, and damaged the adaptor slightly in the process. It wasn't just the one either, as I'd bought three. FLO kindly allowed me to return them all, and I bought the Astro Essentials (cheaper) adaptor instead, and they work perfectly. Easy to fit the camera on, and they are sturdy, and most importantly - let me take the camera off again easily, by hand! I have no doubt these William Optics adaptors will work in some scenarios, but NOT with the ZWO EOS filter drawer adaptor, sadly.

While looking for an adapter to attach my Canon camera to my Zenithstar II 61, I searched around for an appropriate part and looked to cheaper options on the usual sites. Then I thought that I was attaching a camera to a quality scope and only thinking of a cheaper part. Common sense kicked me in the head and I went for the WO adapter. FLO shipped rapidly to Ireland, kudos, and the item is quality. Solid metal, precision machined threads and when camera and scope are joined, they are a solid and secure fit. There are no concerns and piece of mind is guaranteed.

I had been using an aftermarket M48 adaptor. It was ok but did not give a firm fit. The William Optics M48 adapter however, provides a nice firm fit with a positive feel as it locks into place. Recommended.

Precision engineered EOS DSLR adapter. Needed this to connect my DSLR to my recently acquired GT81 via the field flattener. It fits snugly with no play whatsoever, I have used several EOS T adapters and none were as well made as this, some were so loose that PTFE tape was needed to stop wobble. This one screws onto the field flattener and the whole optical train is rock solid.

I've got the Canon EOS adapter, it connects my dslr to the field flattener of my APO beautifully. Top quality. FLO top service as always

Arrived very fast to Croatia, packaged well, product came as advertised

You recognise quality immediately,, and then it fits to the camera perfectly, with no play whatsoever!! The best fitting t ring so far !

The ring provides a good solid connection to the RedCat and gives a reassuring click when the camera has been fully attached.

Originally bought a generic adapter (elsewhere) which did not lock in place and felt unsafe. In contrast this adapter feels solid & well engineered.

I have a WO redcat51 and could not get it to focus using a generic m48 T connector. Martin and Ian suggested I try the WO own brand connector. Guess what? It works. Possibly a lesson there. Anyway it's a quality product, feels well made and connects dslr and redcat together firmly and with a satisfying click.