What is dappled light and how do we fix it?
It has been suggested by some: Eliminate the source of the problematic shadows.
Yet, a chainsaw is so heavy and ponderous . . .

This photo was taken by a Zenza Bronica S2 medium format film camera with a NIKKOR-H 1:3.5 f=5cm lens and Hoya HMC 82mm Y[K2] filter using Kodak T-MAX 400 film, the negative scanned by an Epson Perfection V600 and digitally rendered with Photoshop.