Any advantage to shooting at ISO100?

Joined
Nov 15, 2006
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Upstate SC
Just wondering. With a base ISO of 200, but the ability to extend it down to 100, is there any real reason to do so? I see all these fabulous high ISO shots, but I haven't seen any at 100...
 
D

drjiveturkey

Guest
I actutally miss my Canon Days and being able to go to ISO 50.

Sometimes you want to slow down the shutter speeds for waterfalls, rivers etc. And on sunny days it's pretty tough unless you use a ND filter.
 
Joined
Jun 5, 2008
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Alberta
Iv shot with 100 ISO and below (lo1, lo2, lo3) with my D3 several times. Im trying some ring light flash work with the SB-29 and even at F32 some times at minium focus the captures will somtimes will be over exposed. And since there TTL dosnt work with this flash on the D3:confused:. So using the low ISO is a really good feature IMO
Another time I use this feature is when shooting outside with the 85 1.4 or the 200 f2 and want to keep the lens wide open and the shutter speed needs to be higher than 1/8000.
If I had a Noct(and some day I will) this feature keep you from having to use ND filters over the naked front element.
 
Joined
Nov 15, 2006
Messages
6,117
Location
Upstate SC
Ok, so it's basically just a way of EV compensation? That's what I was wondering. I couldn't imagine it was for reduced noise like I used to use Velvia 50 for the absolute least amount of grain possible.
Thanks for the explanation!
 
Joined
Jun 5, 2008
Messages
6,091
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Alberta
I just checked I guess(now understand) the low 123 stands for (160 ISO , 140 ISO, 100 ISO) Sorry about that. Ill blame my error on the flu medicine.:cool: Why dont they just say what ISO. Its hard for us old timers that used to have to lift the shutter speed dials on are F2 and set are ASA or Din.
 
Joined
Jul 2, 2005
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952
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Orange County , CA
wondering that also...

200 iso base I have shot sevral time with 100iso
all I see is the ability to shoot another stop open if I'm using fill flash and limited to
250th flash sync
 

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