Originally posted by keyofnight It's interesting. In the rangefinder community, people value the low-tech "Think Camera" style: Leica Ms, Zeiss Ikons, and Voightlander Bessas are perfectly acceptable cameras. More to the point, people are more willing to pay a premium for a lack of certain features in the rangefinder community. But in the SLR community…the attitudes are different, and simplicity isn't valued quite as much. It's strange.
Yeah, I'm definitely with the rangefinder community on this. I shoot a lot of cameras that have no meters, and it's absolutely no big deal, and it's a really fun exercise in shooting.
Negative film has a really wide exposure latitude. You can miss with most film by about -1 to +2, and 3 stops is a pretty big error once you get accustomed to shooting sunny f/16. Honestly it's pretty easy to learn, it's just:
f/16: Full, intense sun. A beach on a sunny afternoon at 2pm. A frame covered in snow in full sun, etc.
f/11: Normal sun. An open rural or urban setting at midday.
f/8: Slight shadow: The faintest, whispiest clouds.
f/5.6: Strong shadow: In a slightly shaded area under a tree, or full cloud cover.
f/4: Closed shadows, a lightly canopied forest or dense clouds.
If you can remember a few of these, you can interpolate the rest, trying to hit that -1 to +2 range as best as you can (so aim a bit high if you're unsure). Then, set your shutter to the reciprocal of the ISO. For example, on a beach with 400 film you'd set f/16 1/400 (or 1/500). From there you can set equivalent exposures as far as your equipment will allow.
If you can learn that rule of thumb you can learn to eyeball most exposures, which is really quite fun to do. Or, try to guess an exposure and then check against the meter in your DSLR. Either way you'll start thinking about where you actually need to adjust your exposure, because it's not really necessary to do it every thirty seconds. It's quite freeing to worry about your picture instead of the exposure. You can also shoot all kinds of oddball meterless cameras with confidence. There's lots of interesting, quality MF/LF gear out there for cheap (Pentax included). Handling a MF/LF negative or slide of a beautiful picture you took is a real treat (although slide film has a narrow latitude and will be tougher to shoot without a meter, consider bracketing).
Portra 400 especially is good for this. The exposure latitude there is extremely high. Or a B+W film in Rodinal 1:100 stand developed for 1h is a pretty good recipe for everything (mystery films, etc). After a little while you can basically take wild-ass guesses on everything and get good pictures out of it, which is a blast.