Originally posted by drougge I despair of ever communicating what I mean. I never want the ISO to change without changing it myself, just like you.
I do want to have the option of doing
either of these two little work flows, and only the first is currently provided:
- I press the ISO button.
- I spin the control dial six steps.
- The ISO is changed six steps. The image is brighter.
and the other one, the one I want to also have as an
option, under my complete control:
- I press the ISO button.
- I press the exposure lock button.
- I spin the control dial six steps.
- The ISO and shutter speed change six steps, without affecting image brightness.
Maybe you have never in your life wanted a shorter shutter speed without also making the image darker, but this is something that happens to me. And then I don't want to have to count the clicks.
Don't despair - I have heard what you want - I simply reject it. However, it has never been clear to me that you understand my view - so I will make one final explanation (and then say nothing more on the subject)
In most of my time as a film photographer, my workflow was essentially as follows:
step 1: put roll of Kodachrome 25 into my camera
step 2: take 36 pictures
step 3: take roll of film out of camera and send to Kodak
step 4: return to step 1
Typically I had an "emergency" roll of film in my bag (for those very rare occasions when Kodachrome 25 was absolutely hopeless) - first Ektachrome 64, eventually Ektachrome 400 and/or Kodacolor 800 and/or Fujicolor 1600;
once that roll approached its expiration date, I would either use it or dump it.
All-in-all, I might change the ASA-then-ISO setting two or three times per year.
My first couple of 35mm cameras had manual mode only, then I gained aperture-priority, and finally shutter-priority. I am mostly interested in things that move, so I spend more time in shutter-priority mode than in any other mode. I use aperture-priority, or occasionally program mode, for other situations. I spent enough time in manual mode during the first ten years of my using 35mm cameras, so I don't get any joy from using it; the only use I see of manual mode is those times when I don't trust the camera's metering, so the only time I'm in manual mode, the only time I'm changing shutter speed and aperture by hand, is when my specific purpose is to change the exposure.
The last thing I want is for the camera to be changing ISO when I'm in manual mode, because that would be working against my purpose for being in that mode in the first place. Most likely,
I would refuse to purchase a camera that implements manual mode the way you suggested!
BTW
six steps up from ISO 100 is ISO 6400
six steps up from 1/250 is 1/1000
six steps down from 1/250 is 1/60
six steps up from f/5.6 is f/22
six steps down from f/5.6 is f/1.4
I don't see myself making many six-step trips in any mode while taking a picture, but I would rather do that than have the camera do anything on its own in manual mode, and yes, changing ISO is doing something.