I did, plus the FT-1 mount, and have been having a blast with it. Its been in my Kayak, in the swimming pool, I have put it on the 600 AF-S F4, its been hilarious.
So I thought I would put together a few tips I picked up, and hopefully anyone else who has bought it can chip in and save anyone else time.
1. Get FF DSLR quality : http://www.fredmiranda.com/forum/topic/1352926
This really works : I tested it and got HUGE Dynamic range, better than my D810 and could shoot at ISO 6400 without noise. Shame it only works on static subjects and takes forever to process.
I paired it with a Manfrotto Pixo tripod, and now it comes hiking with me and is a lightweight alternative to my DSLR.
2. FT-1 Mount - this is a lot of fun, although I did hit limitations with focus accuracy and lens sharpness, and was a bit hit and miss. I found you MUST be in AF-C mode so get any kind of good focus result. My 55-200 was a very weak, my 100 2.8 Macro was surprisingly poor, however the 35mm 1.8 DX was fantastic above f2.8 and the big surprise was the Mk1 AF-S 600 F4 - although you sometimes had to manually prod the focus it was suprisingly sharp and contrasty.
3. RAW Files - Need Adobe RAW which you can get from http://swupdl.adobe.com/updates/oobe/aam20/win/PhotoshopCameraRaw7-7.0/8.5.50/setup.zip
to work with the file in lightroom. DXO optics also works well with this camera, and PRIME noise reduction seems essential.
4. WP-N3 Waterproof case works really well, very good quality. I have not found a great way of taking pics underwater in the limited time I have had it, auto modes don't seem to work well, I am currently using af-c, single point focus, face detection deactivated, shutter priority set to 1/400, 10fps. Any tips gratefully received. I also found DXO optics "de-haze" feature works well on underwater photos.
5. Micro SD Card. I put a SanDisk SDSDQXN-032G-FFPA Extreme microSDHC UHS-I Class 10 U3 Memory Card in , works well, takes about 20 seconds to clear the 20 shot buffer.
Anyone else got any tips ?