G15 Knurled Front Ring
It can be assigned to various functions, as described on the page 168 of the user's manual. Which one depends o the shooting mode used. In A mode - aperture change, in S mode - shutter speed, I use it in P mode to set focal distance in steps.
|New Forest pony by Dutch Newchurch|
from Equines in 2018
|Leader of the pack by Wu Jiaqiu|
from My Best Photo of the Week
|Czech Crown by Tobik|
from Coins - Macro only