That's like saying you put subwoofers in your car, but don't worry about the size of the amp powering them.
Sorry, but no, this is not a good analogy. The CLASSIC, TRADITIONAL way to graph expiosure has been known for well over a century by well-studied, educated photographers. What amolitor, and TCampbell,and myself have been trying to say on this board, for well over two years, is that the "Exposure Triangle" is a BRAND-NEW concept, and has until this time, the digital era, been simply unheard of. As in UN-heard of. AS in "did not exist, in any form." The fact that new, internet-age teaching devices, as in "short-cuts" or "short-hands" or "helper concepts" have been put forth by self-taught, unstudied, uneducated YouTubers and
noobs attempting to teach noobs, is beside the point; a point which I must say, h
as ZERO relationship to subwoofers or amplifiers... Sorry, but that's the facts Jack, Or braineack! As the case may be!
Molecular Expressions Microscopy Primer: Photomicrography - Fundamentals of Film Exposure
exposure of film boils down to a simple relationship between two important variables
: the amount of time the film is exposed to light and the intensity of that light. Films are formulated by the manufacturer to respond according to the following formula,
E = l x t, where
E is the proper exposure,
l is the intensity of illuminating light rays, and
t is the film emulsion exposure time in seconds or fractions thereof.
The term "Exposure" has for well over a century, been the above. As in THE ABOVE EQUATION. That is the correct and proper way to define "Exposure" as a photographic term.
E = l x t, where
E is the proper exposure,
l is the intensity of illuminating light rays, and
t is the film emulsion exposure time in seconds or fractions thereof is the correct use of the word.
A related example, "automobile" defines an automobile, whereas "my ride" is slang, as is "my bucket", "my wheels", "my beater", "my Yota", and so on. The Exposure Triangle is a bastardization of a real, actual defined term.
Changing the ISO in use is a modern convention, made commonplace mostly within the digital era, when it became possible to shift exposures by simply turning a dial or pressing a button a few times; the manner in which EXPOSURE, as a photographic term, is used, has not varied. Bringing ISO setting into a proper term of "exposure" is a bastardization of the concept.
If you want to talk meteorology, you define clouds by their type--not as "puffy white sky-marshmallows". If one talks about "exposure", ALL that needs to be discussed is INTENSITY x TIME duration. That is ***it*. THAT in itself **is** the term "EXPOSURE" as it is properly,correctly,scientifically designed. Not with added B.S. from who knows who...
"Changing to a film of new ISO rating also changes the exposure time. A simple equation can be applied to calculate the new film exposure time when changing film speed
:
New Exposure Time = (Standard Time x Standard ISO) / New ISOWhere
Standard ISO is the film speed (or ASA) of the film having known exposure parameters, and
New ISO is the film speed (or ASA) of the new film. As an example, if the correct exposure time for a specimen using Fujichrome Velvia (ISO = 50) is 0.2 seconds, the adjusted exposure time when Fujichrome Provia (ISO = 100) is substituted can be calculated
:
New Exposure Time = (0.2 x 50) / 100
New Exposure Time = 0.1 seconds"
So, basically the whole concept of the "exposure Triangle" is a new-fangled teaching device, designed to help noobies understand how to work a camera.