There is no auto-anything with this lens. But if you're comfortable with manual settings, then absolutely buy this lens. I'm not a professional photographer by any means, but I did take an online course to learn about the manual settings. You *must* use this lens on the M setting of a Canon camera.This is my only lens that is not loyal to the Canon brand, but since the Canon option is $2,000, I decided to try this one for $450 back in April 2021. It's absolutely the best camera decision that I've made! It's now April 2024 and the lens is up to $550, but still a great value considering the alternatives.I use it almost exclusively for flower photography, and it's absolutely my favorite lens. Hands down, it's my go-to EVERY time for flowers. For a full three years now. So, when I upgraded last week from a Canon Rebel T6 DSLR to a Canon R50 (mirror-less), my biggest concern was whether this lens would still work. I bought the "Canon Mount Adapter EF - EOS R, Compatible with EOS RP, EOS R, EOS R6, EOS R5" (the nicer one with the control ring) and Canon assured me that my other Canon lenses would still work fine, without any issues. And the adapter DID work immediately with my other lenses. But not with this one, my favorite. Everything worked except the shutter button would not release to actually capture the photo. I was heart-broken. It took some research, but thankfully someone answered my Amazon Q&A and explained that you must change the camera setting to turn on “release shutter w/o lens”. (FYI, This setting is only available in manual mode.) That fixed it immediately!Other than manual mode only, the other drawback is that it's a heavy lens. I think that's to be expected though. On my Canon Rebel T6 DSLR, it wasn't as big of a deal. On my new Canon R50 mirrorless, it's really lens heavy since the camera body is smaller and lighter. But it still does a fantastic job.All of these photos are un-edited, original files straight from my camera. The two daffodil photos, the lilac buds, the three crocus photos, and the last two orchid photos are with my new R50 mirrorless camera. The others are with my T6 DSLR camera.