[aspb]

Sometimes the iso will change while the program is running in the photobooth mode. Is there a keyboard shortcut or an area on the touchscreen that would change the iso? I am using DSLR Remote with a Canon 40d.

[Chris Breeze]

PageUp and PageDown will change the ISO to adjust the exposure when the camera is set to manual exposure mode. In other exposure modes the exposure compensation is changed to adjust the exposure.

[aspb]

Can that feature be disabled when using the full screen photo booth mode? My exposure is locked down and it seems at almost every event the iso gets changed in the middle of the event.

[Chris Breeze]

I'm sorry there isn't an option to disable this. It was added to help people who needed to adjust the exposure during the photobooth operation.

[aspb]

So we are still having this issue. It seems to happen when people tap repeatedly on the touchscreen while they are trying to select a different layout. We have this issue at every event and happens at least once or twice a night. Also is there a way to disable the "auto" ISO option. We shoot at 100 ISO and when the changes it turns to auto which way over exposes the images.
I would appreciate any help or insight you have into what could be causing the ISO to change when people tap on the touchscreen.

Thanks

[Chris Breeze]

I wonder if Windows is somehow interpreting the touchscreen presses as PageUp/PageDown? Maybe some sort of press and drag gesture on the touchscreen.

You could try running a simple AutoHotKey script which disables PageUp and PageDown. e.g. something like:

#IfWinActive Breeze Systems Photobooth
PgUp::
PgDn::
return

[aspb]

We are still having the changing iso problem. I run the script you provided before I start the photobooth software. It seems to happen when people touch the screen multiple times in a row. I'm not sure if it's the multiple touches or some sort of swiping motion that changes the iso. I have to check the camera settings multiple times throughout an event. I would say on average it changes about 5 times per 4 hour period. I shoot in manual mode with an external flash so my exposure is very dialed in. Changing the iso drastically changes the look of the photos. Any suggestions or help would be appreciated. I am using an HP touchsmart computer.

[alexsiskahn]

have you disabled flicks and other advanced touch screen options in windows driver?

[aspb]

Do you know how to disable flicks on a hp touchsmart?

Thanks for your help.

[alexsiskahn]

not by memory, but a google search or call to hp tech support should solve your issue

[Chris Breeze]

If you can't find a way to disable touchscreen gestures you could try using an AutoHotKey script to disable the keyboard shortcuts. The photobooth_remap_keys.ahk script on this page shows how to do this:
http://www.breezesys.com/articles/photobooth6.htm

Alternatively you could write an AutoHotkey script which checks the ISO setting and resets it if it is accidentally changed.

[apples]

hi Chris,

Thanks for pointing out this thread, hadn't seen it before.

This sounds exactly like my problem, and I'm using a HP touchscreen as well . . . . .so it looks very likely that it someone pressing the touchscreen repeatedly (I've noticed that people who aren't used to touchscreens press the 'button' with several fingers and that this doesn't work - I bet they repeatedly press and this is interpreted at page up by the screen . .. ).

I'll look into it tomorrow - but don't really want to go the AHK route, I'm trying to keep on 'pure' Breeze (as I see it).