today's study is depth, also called focus range or effective focus range, which is the distance between the nearest and farthest objects in a scene that appear acceptably sharp in an image.
i had been having moon envy from the beautiful photos i've been seeing around here and i was all set to try out my not-so-new lens and shoot the moon. but while the weather people said tonight it's going to be clear, and my moon's going to show up, the clouds forgot to read the memo and are hovering above toronto as at this moment. maybe the clearing will happen later, when i'm in bed and sawing logs. tomorrow, perchance.
thank you for your kind visits and comments; know that i greatly and truly appreciate them.