I've recently got a 70D and been reading up some more on shooting style. It seems many photogs use aperture priority or manual and manually control the ISO to the situation to increase or decrease shutter speed. This makes sense in a lot of ways. However I find the button layout on my 70D frustrating to use this way. My brother has a cheap Nikon D3100 and it has a function button he can assign to ISO apparently so whilst holding it down he can scroll through the ISO.
On the 70D (and I presume earlier models) you have to use your finger that you would normally use for the shutter to do it. You have to 'find' the button with your finger. Press it. Then scroll up and down. Then go back to the shutter button. I find it fiddly to do and gives my finger a good old workout!
Also when you are setting the ISO the viewfinder only shows the ISO number and nothing else. No metering to see if you are in the right ballpark. No shutter speed. Nada.
I thought maybe I could assign the aperture preview button to ISO instead but from looking at the custom settings for each button it's not an option?
Anyhow I am just having a bit of a rant at something that would seem so obvious and easy to implement on an 'enthusiast' camera. I can't understand Canon's way of thinking sometimes.




