I'm planning on converting thousands of Kodachrome slides as well. Do these scanners put out RAW files? I thought about a 90 or 100 macro with lightsource as well. I'm assuming I should shoot in RAW if doing it myself, correct?
I bought my A7 and then a Sony/Olympus adapter to use all my Zuiko glass (8 lenses). Flawless in manual. I have recently purchased the new Tamron 28-75 made for Sony. It's the F/2.8 Di III RXD (not the previous one). This one is not variable-it holds the stop during zooming. Love it. If I want wider view, I just put on my old Olympus 24.