An article in the September issue of Pop Photo is entitled "Go Figure" and has 12 calculations and formulas. There is an interesting one about exposure latitude, something that has been discussed here.
They say, "The exposure latitude of color slide film is approximately -1-1/2 to +1/2 stops. With color print film, it's about -1-1/2 to +3 stops--and even +4 stops can give decent results. Digital capture generally has an exposure latitude of about -2 to +2/3 stops without enhancement. General rule: Err on the side of underexposure with slide film and digital, and on the side of overexposure with color print film," which is the same advice that has been given here.
Racehorse in the Desert
Links to Common Past Pentax Forum Threads and some Exceptional Images are at: http://www.solutns.com/pages/pentaxforum.html
|Blue and yellow in water by fireplace33|
from Ink and water
|Kylmä joki kopio by Kaappo|
from Shutter speed 1/25 or slower
|WR_2.8_13 copy copy by photoprof|