Keep it simple
Planning is for planning — only a few things will go as hoped, and even then, the satisfaction of a desired outcome will barely match that found in ordinary happenstance.
Clipped Corners
A ground glass will have missing corners so you can see if the lens is projecting from edge to edge. If you can see the lens, it’s giving full coverage.
f/8 and be there
F/8 is typically the most optimal aperture for everyday lenses.
Gear
Photography is 10% taking pictures and 90% watching camera reviews.
The problem with mirrorless
Someday we’ll call it a camera with interchangeable lenses.
9x12
Manufactured circa 1920, my Voigtländer is a back-pocket view camera that holds 9x12 cm film or glass plates (daytime film exposure: Foma 100, f/12, 1/100th).