The 100-400 MkII compared to my other lenses

I read a lot of reviews before I bought my 100-400 MkIi, but I didn't find any comparisons to my lenses that I already had.

I have had a 17-40mm f/4 L for many years, and a 70-200mm f/2.8 l IS USM MkI. (And a Sigma 105 mm 1:1 macro f/2.8 (MkI) + a Sigma EX 15 mm f/2.8 diagonal fisheye + a Peleng 8 mm)

My most belowed lenses have been the 17-40 and the 70-200. As a an amateur photographer I couldn't justify (to myself..) to keep them both, AND buy a (used) Canon EF 24-105 f/4.0 L AND a 100-400.

I'm 61 years old, so zoom-lenses has always been a compromise to me. I expected the 100-400 mm to be very good, but not THAT good

I have always considered my Sigma 105 mm (10 years old?) to be my sharpest lens, but my new 100-400mm seems to be at least as sharp. I really didn't expect that...

I don't have the equipment and competence like Bryan Carnathan (TDP), but these samples may still be useful to you.

This is a comparison between my 4 lenses that can shoot at 100 mm. (Bringing in my old (useless) 75-300 mm is just to show the difference between a cheap, old lens to newer, expensive lenses). The crops are at 300%.

100mm_various_lenses

The images is crops like this:

Canon_100-400_v2_100mm_f4.5_full_crop_marked

The big question for me was: "Could the 100-400 mm replace my 70-200 f/2.8..?

Many reviewers on the net said it could, and I agree. (I don't do indoor sports-photography..).

The shallow DOF (Depth of Field) is there, and the bokeh is there. And, I will still have my Sigma 105 macro. Probably only for 1:1 herafter...

Carnathan, and DPReview, say that you don't gain much sharpness by stopping down, and this show that they are right:

Canon_MkIi_100-400mm_f-open_vs_f8.0

Are uploaded images here in full resolutions..?

Anyway, here is one of the images in full resolution (100 mm, f5.6)...

Canon_1_100-400_MkII_f4.5_500s_100mm_full

...and one full resolution at 400 mm at f/8.0:

Canon_6_100-400_MkII_f8.0_90s_400mm_full

I realize that all the crops are midframe, but I didn't have the time/interest to make also corner crops. The center of the image is usually the most interesting to me...  CA (Chromatic aeration) is usually easily fixed anyway. So are vignetting..