Reversing a 50/1.8 on my Coolpix 5000.

I want to try to reverse a 50/1.8 on my Coolpix 5000 to get greater than
life mag.
I plan to use the Nikon UR-E5 to get to 46mm, then use a 46-52 step up ring,
then the reversed Nikon 50.1.8 (52mm).
I also have a Nikon #4T clsoe up to add before the 50/1.8 if I need more
mag.

Would my mag. be 85/50 = 1.7 at full zoom?
What would it be with the #4T added?

Any ideas, opinions.

Eyron




Eyron