Advice and help/ slow shutter and video problem

[Richard Lane]

In addition, the Penguin shot has a high contrast background, plus the higher contrast of the two-tone skin on the Penguin makes it easier for the autofocus system to lock onto.

The Monkey shot is a lower contrast shot since the rocks and monkey are similar colors. Also, the monkey's fur has lower contrast than the penguins skin, and the monkey's fur is one color wihch also makes it harder for the AF system to lock on to. Furthermore, skin will always look sharper than fur.

But with practice you should be able to overcome some of these obstacles by trying to grab an edge of the monkey, or focus on a corner of part of the rock, or the log (beneath the monkey) that is in the same plane of focus as the monkey (focus-lock), and then recompose afterward.