I post too Much on Here!!
- Mar 25, 2011
I don't believe the lens has such a feature. I own it. The feature you describe is in EOS R cameras, its called focus guide and it is setup in the options. It is available for any lens that sends information back to the camera including adapted EF lenses. You must use manual focus to see the arrows. A alternative is focus peaking which works for fully manual lenses as well as electronic ones. I tried it, but its not as accurate as manual focus using 5X magnification, so I turn it off.By the way, I am using their RF 35mm macro which has a nifty feature which greatly simplifies manual focus. It consists of two arrows which point apart when the chosen point is out of focus while moving towards coinciding, overlapping and turning green, when in focus. This tells you both which way to move and when you are in focus.
I currently have my 100L mounted, the feature works on it as well. I prefer AF and a touch screen on my R5, but if its critical, manual focus is a little more accurate. The adjustable focus rate for RF lenses does make macro better which is why I'd likely get the RF 100L.