I think optics works well with my SW 72ED, but if you guys are seeking the adapter for camera side threads of M48, pls DO NOT buy the standard M54 female to M48 male adaptor on the market. As I measure the thread, its dimension is 54.7mm, a bit larger than 54mm. So I bought StellaMira flattener M48 adaptor in FLO, that works with this OVL. So I guess OVL and StellaMira flattener are built from same taiwan manufacturer. Really sucks for this Taiwan manufacture who is not complying with the standard and play these tricks.

I got this in Nov 2022 and I’ve been using it since then several time a week on my Skywatcher 72ED and I’m very satisfied with pinpoint stars up to the edges paired with the ASI585MC and Sony A6400 and Nikon D5600. Works great with the scope and all 3 cameras combination and need to add spacers to get in focus. I highly recommend it.

Muy bien con el 72 ed gracias.

I purchased this flattener a few months ago and due to bad weather could only test in the past few weeks. I was pleasantly surprised by the excellent quality and look of this flattener, the glass looks superb. Tested on some single shots using a Skywatcher 72ED, adjusted back focus slightly on my ZWO 294MC PRO and the did a 2 pane mosaic of the Carina nebula. perfectly focused stars up to the edges, no noticeable aberrations. Definitely a good purchase for the price!

Acquired a SW 72ed refractor & needed parts to attach my camera. A quick email response from Alex meant that I could quickly order the flattener, T ring & adapter which meant I had a solid imaging train & the correct backspacing for my camera. Just need a clear night to try it all out. I continue to be impressed by the service from FLO & it has become my one stop shop for all my astrophotography needs. Great stuff

I bought this field flattener for my skywatcher Evostar 72 ed and I didn't even try it because my sky is cloudy since 2 weeks, and it's going ti be so for other 2 weeks. In my order there were 3 products: the flattener, an adapter ring and clouds. Can I give back clouds as written in the return terms? Sorry for my bed english.

I bought this FF last summer. I have a skywatcher 72ED with an astro camera Altair 269c (aps-c). I didn't succeed to get the right back focus (55 mm or 56 mm or something else). Thus the FF gives me some halos around bright stars.
I do not recommend to buy this equipment. I don't use it anymore and i lost 80 pounds for nothing.

A realy good product. Works great with SW Evostar 72ED. Front thread for filter installation. Overall good build quality. When attached to the scope fit well and doesnt move at all. A good alternative to the reducer/flattener from SW.

Brilliant service from FLO and the flattener does everything it should do on my Skywatcher ED72. Plenty of focus tube travel, lovely flat field as compared to when not using the flattener. It is also well machined and feels quality, but also pretty light and takes 2 inch filters in the nosepiece. The nose piece holds firmly with the upgraded FLO ED72 two inch compression adapter Superb.

I tested the product on my Skywatcher 72ED and was very satisfied with pinpoint stars up to the edges paired with the ASI294MC. Highly recommended.