I'm a long-term Canon user but am ready to go mirrorless. I do a lot of macro work - usually using extension tubes and the canon 100mmL. Almost all macro activity is done indoors using a tripod. I've been using an elderly Canon 6D and have been pretty happy with the results.
I have a few questions :
- A7R3 or A73? I'm assuming that the R3 would be the best choice here (I do like to crop a lot) but, not knowing the technical limitations of higher density sensors for macros, I'm wondering if I'd see a significant difference between the two?
- Will my Canon 100mm macro lens be tolerable with an adapter for mostly indoor shoots? If so, any recommendations for an adapter? And --would adapted glass still gain the advantage of the extra pixels of the R3?).
- If I went with a native macro lens, any recommendations? (I don't necessarily need a lot of working distance but would like a high quality lens).
- Anyone know if there is a tethered software-based automated solution for taking stacks that supports Sony cameras kind of like Helicon Remote?
- I also do street and concert photography but I'm guessing that I'm not going to notice much difference as far as focusing between the two - especially coming from a 6D but would appreciate any opinions on that (love the 6D's low-light focusing though).
I set up for indoor macros using my a7Rii and the excellent MP-E 65 f/2.8 1-5x macro but I have just converted the setup back to my Canon 6D. The reason I did this is that with LR and EOS utility you can work fully tethered to a Canon DSLR, including showing the all-important high-quality
preview on the PC's monitor.
EOS Utility-3 provides x1, x5 and x10 magnification for critical focusing of the previews on the PC monitor. I tried using Capture One with my a7Rii instead of LR but couldn't get a high enough quality Live View image on my monitor. In the end I found that the rear LCD was better for critical focus. LR doesn't support tethered operation of the a7Rii and you can't get a preview on the monitor for critical focussing. You can see a high quality image after you have taken the shot.
For macros with an A73 or A7R3, the Canon 100 f/2.8 macro will work fine and has the benefit that you can use its tripod mount. You will need an smart adapter such as the Metabones IV to control the aperture of the EOS 100 f/2.8 macro and provide full electronic coupling to the camera.
Sony's FE 90 f/2.8 macro, while a truly excellent lens, doesn't have a tripod mount for some strange reason so I only use it handheld outdoors. I hate to have this heavy lens supported by the camera's tripod mount. I also have Sony's modestly priced FE 50 f/2.8 macro and this works well - still no tripod mount but it is much lighter that the 90 macro. Of course you have to get closer to your subject.
I use a Stackshot automated focus rack with Zerene Stacker (ZS) software with either system. ZS has the advantage over Helicon Focus in that you can fully operate the Stackshot using the PC and not the Stackshot controller. This system is a pleasure to use!
The A73 or A7R3 should be excellent for street and concert photography but I would hang on to the 6D for the macro work. Also, a permanent macro setup with the 6D leaves the Sony camera free for other uses!
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