For the benefit of consumer choice I hope there are going to be housings for the EM-1 and the camera has a number of interesting improvements over its little brother. In particular, the first useful continuous autofocus on mFT, FF DSLR-like size and quality of the electronic viewfinder, 1/320 flash sync speed, lower noise, and (perhaps, if useful for ambient light shooting) curve-based control of color response. Personally I find the improvements sufficient to spend the extra cash on the body but I still think the EM-1 is not going to be a hit for UW photography, and here is why.
- Most divers interested in such a camera already bought the EM-5 (me included)
- Increased size/weight reduces one of the main benefits of mirrorless
- Anticipation that a housing comparable to the Nauticam for the EM-5 will be a lot more expensive
In France we say " il parle d'or " which means "his speech is precious like gold" .
For me it will come down to size. If the housings grow too much, then my interest will diminish. What I love about mirrorless is small size and high quality.
Which is also why I like the 2x crop of the M43 - there are many advantages in the smaller format. The problem of full frame mirrorless is that you would need big domes - which would rather defeat the object of a small camera body for underwater use.
I like the look of the E-M1, but will only get one if the Nauticam housing is nice and compact.
I've sell my D90 and Aquatica port and housing very cheap but without regret , but if now the M43 become bigger and bigger ... ):
However, if I really want into macro - such as in Lembeh - I will use my 60mm.
Absolutely !! And I must add also the 45 mm Panasonic , which is a great lense too . With the Subsee +10 you can do really good macro even try supermacro .
As well that you can do very beautiful wide angle with the 8mm fisheye of Panasonic that I own or other dedicateced wide angle that I don't own , and that I've never try , so I can't speak about .
In both situations wide angle and macro you can't get the same result with the 12-50 , you can make excellent pictures with it , but not the level you can have with the fixed focal lenses .
Also versatility underwater is difficult , because jumping from wide angle to macro needs a complete change of mind , and adjustements for the camera and the flashes as well , it's extremely difficult and tiring . Better to go for macro OR wide angle before the dive.
I own also the 12-50 with the very expensive but so well built port and zoom gear from Nauticam ,I use it from time to time , but there always someyhing missing me especially in wide angle .
The OMD is really a great camera , full of possibilities , but you could miss something if you try to manage everything with the 12-50 even if it's a great lense , no needing anymore fixed macro or wide angle lense .
The OMD is not a compact camera , it's an interchangeable compact camera , so use it
Ps I hope that my english will not create misunderstanding ...