Hello and thank you for the comment,
Glad you mentioned Oskar Barnack, the "father" of 35mm photography, I think you are right about the size factor
When I was seeing the TLR cameras and compare to the SLR one, the first thing I though was about the difference in size between TLR cameras and SLR, and now it is happening the same with mirrorless, mainly Micro 4/3
You are right when mentioning some good film SLR cameras, they were much smaller and nice than these DSLR's, the SLR I liked more was the Nikon FM2, and it was not only for the camera (because at the time I had also the F3), the Nikon FM2 was very similar in size comparing to the Olympus OM and Pentax ME, and that was an important factor to me
My view Aleo is that's all about size. Mirrorless is one of the factors that enables most of the features and benefits of a DSLR to be miniaturised to the size of the 1925-1936 Leica 1.
Oskar Barnack, starting from scratch got it about right in terms of form factor, but lacked features. First built-in rangefinders and then mirrors, pentaprisms and exposure meters were added - all adding bulk. SLRs gradually got smaller with the Oly OM, Pentax ME etc.., but then ballooned in size once more to accommodate autofocus, built-in flash and auto-winders. They kept getting bigger when they went digital before the shrinking process began again.
Mirrorless gets back to Leica 1 size.
Leica 1, 1925: 133mm x 39mm x 65mm
Panasonic GX1, 2011: 116mm x 39mm x 67mm
Interesting to see those cameras compared in size, I really like the form of the GX1, I still have a GF1, that I use more often than the G2, must be the correct balance to me
The Olympus EP cameras most be also similar in size
It's not a coincidence. The fact is that something a bit bigger than a deck of cards is the optimum shape and size for quality, portable, hand-held photography. People may get used to bulky cameras and then complain the new ones are too small, but I have little sympathy for them. As the OMD proves, grips can be added for when extra bulk is useful and removed for everyday use. Of course bigger (and smaller) cameras will always have a place for optimum quality, specialist use and unusual situations.
I don't complain about being small, one of the cameras I like to use is my Panasonic Lumix TZ6 a good compact, if that camera had the quality I get from Micro 4/3, I will always use it
The OM-D is a great camera, and I was glad they have made it "small", also the good retro design helps, the grip is a good add when needed, no wonder so many people have lust for that camera
If I upgrade I will compare it to the GH3 and then decide, but guess the GH3 will be a bit bigger and a very different design
But I not a person that upgrade to new cameras often, I am still using the G2 and GF1 and happy with the results
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Simplicity is the ultimate sophistication.
God is the tangential point between zero and infinity.
Imagination is more important than knowledge.
God always take the simplest way.