The advantage of using the Sony a7R111 with a 35mm Leica M lens and a Novoflex adaptor on the poodlewalks is that I can photograph handheld in low light situations. The high ISO capability is something that I needed not all the tech features as I use the camera in manual mode, as if it were a film camera. It was still photography not video that I was interested in, since video requires expensive editing software and it is a whole other world.
The disadvantage of the Sony with a Lecia M lens is that I cannot do closeups of the objects that I see when walking along the beach or amongst the granite rocks. I find this frustrating as a lot of what I find interesting along the littoral zone these walks is in the detail. Photographing the detail requires using a macro lens, which I do not have. Up to now I use an old compact digital camera (the Olympus XZ-1), but I find the small sensor (10 megapixels) too limiting in terms of dynamic range, tonality and for post processing.
So I have decided to use my old Sony NEX 7 camera that is sitting in a cupboard with a Voigtlander VM/E Close Focus Adapter, which allows me to use my Leica M lenses on both full frame & APS-C Sony E Mount Cameras. I have just ordered the adaptor from Mainline Photographics in Sydney. It's a basic digital camera but this combination provides me with the capability to do some handheld macro photography in soft light using a Leica M lens.