Canon Camera Adapter (M48) (S20300)

This adapter fits perfectly with my focal reducer and the M48 threads are much easier to align than standard T-rings. Getting sharp stars across the whole frame now.

Finally got this to thread onto my focal reducer without any wobble or cross-threading, which is exactly what I needed for sharper deep-sky frames. The M48 ring fit snug and feels more solid than the standard T-ring I was using before.

I've been using this M48 adapter with my Canon DSLR and the focal reducer, and the threading is precise—no wobble at all. It holds the larger format securely, which makes a real difference in my astrophotography shots.