This adapter again well made and a good price I brought this with the other adapters as I still was not shore which one to use. They all came to together in a strong box and delivered safely. I would recommend flo to any body who are starting out in this hobby, as they are very helpful.

I bought this primarily to use on my zwo533mc to give the correct spacing for my baader mk3 CC using m48 thread , looking at it the only issue I see is if you use the m42 filter insert you get with your zwo camera that fits in the 11mm spacer once you screw the adapter in it stops approx 1.5mm -2mm from fully screwing down , now for me using with the mk3 cc probably will work in my favour as using the m48 thread usually needs 57.5mm so may work without having to use spacers , but something to bear in mind , maybe worth flo looking into so a filter could be inserted into the adapter, but has a nice rough finish on outside so you can grip it , first class delivery from flo as usual 👍

Solid extender. Seems well made. Would have been better had they provided a dust cap - hence only 4 stars.