Getting the most out of Olympus 12mm 2.0

4 hours ago, Chris Ross said:

Thanks Wolfgang, I'm, thinking the costs would be a bit lower if you could do it this way, a single extension and a 4" or 4.33" N85 dome you might already own and you would only need the lens and the extension ring and figure out a zoom ring.  The price of the Nauticam N85-N120 extensions is a bit crazy now - the 47mm N85-N120 is now $USD685 and the 41.7mm version $707 on the Nauticam website.

 

The total bill for an adapter (if you can get the 34.7mm version) ext ring, 140mm dome 8-15 lens (new),  Metabones and zoom gear would be $USD4737 with current prices. 

I found the thread with what's needed on Isotta to house an 8-15 on m43 - 40mm ext with gear, 3546 zoom gear, 20mm extension, 4.5"crystal dome and lens/adapter, adds up to $USD2844, quite a bit cheaper and all using their standard B102 extensions.