I bought the RF 100mm L f/2.8 IS USM primarily for the IS combined with the IBIS in the R5 to help counteract my tremors. I have benign tremors, and at times, I shake pretty bad. Since I shoot most of my macro hand held, it's a struggle. Anyway, it's a nice lens but somehow harder to use than the EF 100mm L f/2.8 IS USM (I can't quite put my finger on it... yet), but that could partly be the R5. It's odd going to the MILC from my 5D mark IV DSLR.
My first impression is that the RF is a little soft. I had to up my sharpening a bit, but hopefully I will figure out the lens.
Funny thing, the first day that I used it, I had unlocked the SA ring and all of my shots were taken at -0.4 and that made all of my shots soft. I didn't notice the mistake until I started editing and noticed it in the EXIF data. The next day, I locked that sucker at 0 and things looked better, but as mentioned, just a little softer than the EF version. Since I was testing, I shot the same subject with both the RF and EF, except the wasps.
Black and Orange Mason Wasp - RF 100mm, 1/500th, ISO 1250, f/4.5.
Black and Orange Mason Wasp - RF 100mm, 1/500th, ISO 1250, f/4.
Not the best setting, but you take what you can get 🙂 Spider Wasp - RF 100mm, 1/640th, ISO 8000, f/16.
Spider Wasp - RF 100mm, 1/500th, ISO 8000, f/16.
Leafy Elephants Foot - RF 100mm, 1/250th, ISO 4000, f/16.
Leafy Elephants Foot - EF 100mm, 1/640th, ISO 8000, f/16.
Murdannia nudiflorar - RF 100mm, 1/500th, ISO 1250, f/7.1.
Murdannia nudiflorar - RF 100mm, 1/500th, ISO 4000, f/16.
Mexican Clover - RF 100mm, 1/400th, ISO 4000, f/16.
Old Man Hand - RF 100mm, 1/2000th, ISO 8000, f/16.
Cicada - EF 100mm, 1/320th, ISO 1600, f/10.
Newton
