Anyone wondering what “focus-stacking” is … it’s the combination of several photos with a progressively changed focus setting, and then combining all the “in focus” bits from each.
This is one of the single images used in the one above …
It’s particularly useful in low light conditions when you are needing to use a wide aperture - and hence very shallow depth of field, as shown in that single pic.
The G9 does all this clever stuff internally, but there is software that one can use to combine images taken normally. Indeed - it took 21 pics and then combined them.
Obviously, one needs to have things set up on a tripod to minimise the post alignment, and you need to have some tables to know what focus steps to use at different apertures for lenses of different focal length.
Some modern (higher end) cameras offer focus bracketing that takes the pics for you nice and quickly … then you just need the software.
The origins of focus stacking are in microscope photography where the immense magnifications mean the depth of fields are ridiculously shallow, and also the same in macro photography.
That’s a Lightroom feature. Depending on the shape of the indicator its either a gradient filter, circular or brush. I use a lot of selective edits and a smaller number of whole image changes.
The P20 does shoot in RAW though so it makes edits easier.
So nipped out for a practice flight as it was so calm but sod’s law kicked in when a dark cloud eventual arrived and started to piss on me and it wouldn’t go away. The sun shining all around me at about 2 km out, I was dying for piss and so was doing the “I need to go” dance which I think the rain god answered for once as he was bored.
This just before the rain, but I carried on anyway.
When just out practicing “without a planned mission” I never have the camera on just in case I go insane, it’s less expensive. I was practicing back ward figure of 8 and at the same time clocking part of my 2 1/2 hours a month quota.
