On 21 Dec 2004 at 16:25, Steve Jolly wrote:

> Frantisek wrote:
> > I am sorry I don't understand why the ISO would increase? Am I just
> > tired today (i.e. dumb) <g> ?
> 
> You're capturing light from a larger area, so more light hits the 
> sensor, so you can use a lower ISO setting.
> 
> I'm not sure I'd have chosen to describe this as "effectively increasing 
> the ISO", but I think that's what Rob meant...

Why not? ISO is just a measure of equivalent sensitivity in a DSLR however it 
is derived (ie by electronic or light amplification)

Cheers,


Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110
UTC(GMT)  +10 Hours
[EMAIL PROTECTED]
http://members.ozemail.com.au/~distudio/publications/
Pentax user since 1986, PDMLer since 1998

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