Originally posted by jpzk .. why don't I go out with ONE lens for a whole day, and concentrate on taking pics with just that single lens/camera ... where is that thread?
That's my Lens-Of-The-Day (LOTD) strategy. I have a zillion lenses. I have faves. I don't want the others to go unused, unappreciated, wasted. So I grab some semi-random lens and use ONLY it for a day or ten. I'll have other lenses in my bag, just in case, but most days they just stay in the bag. And some of those LOTD babies find themselves promoted to favourites.
It gets REAL interesting when the LOTD choice is weird and/or specialized. I've a massive Rodenstock XR-Heligor 120/1.8 that is fixed-focused to 50cm / 20in. Yes, that's a long fast XRay lens with no aperture control, so it always shoots wide-open with razor-thin DOF. I can't really push the focus out any further. Every shot is Yet Another Learning Experience (YALE).
That's really the point of LOTD, especially with old manual primes. Every lens is its own unique window on the world. Limiting myself to a single lens forces me to see as it does. And so I learn. My most educational camera was an ancient no-auto-anything folder with a 50/3.5 lens. Fancy new gear lets us take nice pictures. Difficult gear makes us work to learn the craft.