I used the C100 for only one wedding, but I really think it would be awesome to have an auto gain/iso option/button on the C100 like the auto-iris button (which I did not use much). I was really working that little joystick changing the iso almost ever shot. There really should be an option to have the camera do this, it is pretty straight forward. With a auto-iso option, maybe have an upper limit option in the menu so it only goes up so much, say set it at 10,000 iso. For the wedding, I was mostly changing the gain as I wanted to shoot as shallow depth-of-field as I could. If I had a auto-ISO option, that I could monitor on the screen, that would free me up a little to concentrate on other things. I can imagine that little joystick just wearing out after a while changing the ISO all the time.

Do you think an auto ISO option can be changed by a firmware update?


Is there a place we can request added options to Canon?

For C100, they have announced the shifting of display location during magnification. Canon is committed to give auto functions. If there is sufficient demand for auto ISO option, then they may consider it. They will buy the logica that many people used to DSLRs are used to the auto ISO option, so they want it in C100.

It should be simple enough to do it by a firmware modification. The DSLR cameras have it. However you should also note that Canon has just announced a firmware update to include auto iris and auto AF in the C300. They will do that by October 2013. (Canon's typical 6 month cycle). By that time you would have got used to the present camera and fast enough to change the ISO via menu options.

Nevertheless, if there are more voices, then Canon may listen.

Cheers,
Sabyasachi