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Forums Lobby MASTER YOUR TOOLS - Hardware & Software Nikon Speedlights & Lighting topic #59971
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Subject: "D-4 TTL Flash at High ISO" Previous topic | Next topic
Arthur Laurent Silver Member Nikonian since 08th Apr 2006Wed 28-Nov-12 08:18 AM
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"D-4 TTL Flash at High ISO"


Leesburg, US
          

Hello, all. I'm in an experimental mode, and thought I'd plumb the available wisdom before I went off totally wild.

I have a bunch (technical term) of SB-800's and Quantum Q-flash's, all of which play well together in TTL and other modes.

I have a newish D-4, and I want to experment with TTL fill flash, exposing at the D-4's high ISO settings (ISO equiv 12,800 and above).

The SB-800 "tops out" at ISO 1000, the manual says. The Q-flash manual says it's "self-adjusting."

Do I have to go to manual mode? How does the SB-800 act at ISO's higher than 1000? Does it just refuse to work?

Thanks for any enlightenment. (Yeah, I'm a jokester...but it's a serious question.)

Arthur

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Luke_Miller Silver Member Nikonian since 19th Apr 2006Wed 28-Nov-12 01:53 PM
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#1. "RE: D-4 TTL Flash at High ISO"
In response to Reply # 0


Rural Virginia, US
          

I use my SB-800 at ISOs higher than 1000 regularly. Works just fine. I suspect the ISO 1000 limitation is for when the flash is in Auto mode (where the flash controls its own output).

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Arkayem Moderator Awarded for his high level skills in flash photography Charter MemberWed 28-Nov-12 06:49 PM
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#2. "RE: D-4 TTL Flash at High ISO"
In response to Reply # 0


Richmond Hill, GA (Savannah), US
          

The reason the SB800 tops out at ISO 1000 is that the lowest power it can fire at will not be low enough for really close shots at ISO's above 1000. However, for shots at a few feet or more the SB800 will work fine up to ISO 2500 or so. For ISO 12,800 or higher, you will have to be considerably farther away from you subject to avoid overexposure.

Russ
Retired Professional Photographer
Nikonian Moderator
Russell MacDonald Photography
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Forums Lobby MASTER YOUR TOOLS - Hardware & Software Nikon Speedlights & Lighting topic #59971 Previous topic | Next topic


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