Cameras Stickers

ISO coding stickers?

I was curious as to when you use ISO coding stickers to trick your camera into thinking it is a different ISO than what your using how you work it out to where say
Your using 400 but want to make it out to be 1600. If you put the stickers on will it automatically make it a 1600 ISO?
I don't know if I'm making sense.
I want my 400 ISO film to work as a 1600 or 3200 would.
Here is a site I found that kinda shows how the codes are designed.
Does this make sense to anyone?

http://www.bythom.com/dxcodes.htm

Thanks!
I'm just confused on how it works b/c even though you trick the camera the film sensitivity can not be tricked. Is that why you have to it developed as the higher ISO?
I dunno.....if it works it works. I'm just confused on how.
It's really cool though!
I have an N65 and it reads it automatically. I want a digital SLR and will get one but I may also check out the old N80. N80 lets you set it.

Yes, your camera is tricked into thinking the film is rated at the ISO speed shown by the sticker which it reads in exactly the same way as it reads the bar code printed on the cassette. But it doesn't 'make' the film 1600 ISO (or whatever). You, or your processor, would still have to develop the film as an uprated one. The film retains the rating that it was made with.

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