Ikka, the second one looks very crisp and has nice background rendering.
Here are some very high contrast back-lighted examples from the 300 PF in warm late afternoon light from a local lake.
The 300PF is very clean with respect to longitudinal fringing, and flare is not noticeable here.
#1
D5100, f/8 @ 300 mm, 1/1000, ISO 100
#2
NIKON D5100, f/6.3 @ 300 mm, 1/1250
For comparison, a capture from 105 f/2.5 at the same aperture, showing purple-green fringing causing some interesting color shades.
#3
D5100, f/6.3 @ 105 mm, 1/640, ISO 100.
Back to 300 PF again:
#4
NIKON D5100, f/5 @ 300 mm, 1/400, ISO 100
Colder light somewhat earlier:
#5
D5100, f/5.6 @ 300 mm, 1/640, ISO 100
At dusk:
#6
D5100, f/4 @ 300 mm, 1/320, ISO 100
Fisheye overview of the scene:
#7