3rd party equivalents of Canon Viewfinder C

[Daniel Browning]

Basically I'm just looking for something that can give me more precise focusing when doing macro.

You need liveview! Beg, borrow, or steal a camera with liveview and it will be 100 times better than any viewfinder.

I can get Chinese made 3rd party ones for about $60. I was wondering if anyone had any experience with these.

Not I.