almo wrote in post #19409991
I should mention that I would be starting off from nothing. I sold everything off years ago. I have no old glass laying around. No old cameras.
My subjects tended to be close up nature, still life, landscape, and some light action, mainly birds/insects in flight. I would like to have 4k video capability to cut in clips with my drone footage as well.
Take a look into modern mirrorless options from Canon, Nikon, Sony or Fuji. I can't speak to the non-Canon options, but if you're looking there I'd suggest waiting for an R7 to hit the shelves at your preferred retailer for a straight back to APS-C journey or grab an R6/5. The R7 will be a little more budget friendly, the R6 will be a nice middle ground, full frame sensor and the R5 will be the priciest of the options but give you the highest resolution sensor. All of these will have newer, faster AF systems and some other upgrades that the R didn't have. Any of the options you have to look at are going blow the 40D out of the solar system...you've missed a ton of upgrades, innovations and a few 'retro' updates. You could theoretically check out the R3, as well, but that's pretty much going to be extreme overkill unless you're shooting pro sports or other high demand areas and environments, with commensurate cost.