Reviving this thread, as I am still looking for a nice clean 10x40 BTP. I would like to know
from those who have compared, how the T* coated version would compare to the T*P*
model ? What advantages does the phase coating add to the model.
I know condition is important, and these will be mostly for my collection, I have others that I
use regularly. Is slack in the focuser a given, or are some better when not used as much.
I had a 10x40 BT*P*, and after twice sending it to Zeiss, they could not get the slack out, so they
replaced it with a Conquest HD.
A lead is appreciated also.
Thanks, Jerry