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Forums Lobby MASTER YOUR TOOLS - Hardware & Software Nikon Speedlights & Lighting topic #59979
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Subject: "RE: Matrix/CW Metering on SB800 TTl" Previous topic | Next topic
Arkayem Moderator Awarded for his high level skills in flash photography Charter MemberFri 30-Nov-12 02:45 PM
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#6. "RE: Matrix/CW Metering on SB800 TTl"
In response to In response to 3
Fri 30-Nov-12 02:47 PM by Arkayem

Richmond Hill, GA (Savannah), US
          

>It didn't appear that the Flash mode wasn't TTl, without the
>BL. That's what I meant by "it didn't work".
>Referring to setting the mode on the flash only and not
>setting Metering mode on the camera.
>
>I thought they talked to each other (with the SB800) in the
>hot shoe. And that setting parameters on one or the other,
>limited parameters on the other. In other words, Matrix
>wouldn't be allowed when in TTl mode. And, correspondingly,
>TTl-bl wouldn't be allowed if camera metering were to set on
>Center or Spot.

I think it helps to be able to reason this out:

TTL-BL mode requires a large portion of the frame to be metered by the camera so it can figure out how much ambient light there is, so it can balance brightness of the subject with it.

There are two metering modes that meter a large portion of the frame: Matrix and Center Weighted.

Consequently those are the two modes that will allow TTL-BL mode to work.

Regular TTL mode doesn't use any metering information from the camera, so regular TTL can be selected on the flash in any camera metering mode: Spot, Center-Weighted, or Matrix. That's why you can select regular TTL in any of the camera metering modes. The camera metering modes only affect the ambient contribution to the image. They have no effect on the power of the regular TTL flash. The regular TTL power is set entirely by the monitor preflash.

I invite you to read my CLS articles in order, here:
http://nikonclspracticalguide.blogspot.com/2008/01/nikon-flash-two-separate-metering.html

Russ
Retired Professional Photographer
Nikonian Moderator
Russell MacDonald Photography
Nikon CLS Practical Guide

  

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This is a hot, active topic!Matrix/CW Metering on SB800 TTl [View all] , Bravozulu Silver Member, Wed 28-Nov-12 07:14 PM
 
Subject Author Message Date ID
Reply message RE: Matrix/CW Metering on SB800 TTl
gkaiseril Gold Member
28th Nov 2012
1
Reply message RE: Matrix/CW Metering on SB800 TTl
blw Moderator
28th Nov 2012
2
Reply message RE: Matrix/CW Metering on SB800 TTl
Bravozulu Silver Member
28th Nov 2012
3
Reply message RE: Matrix/CW Metering on SB800 TTl
Arkayem Moderator
30th Nov 2012
6
     Reply message RE: Matrix/CW Metering on SB800 TTl
Bravozulu Silver Member
30th Nov 2012
7
     Reply message RE: Matrix/CW Metering on SB800 TTl
Arkayem Moderator
01st Dec 2012
10
     Reply message RE: Matrix/CW Metering on SB800 TTl
gbowen Gold Member
30th Nov 2012
8
          Reply message RE: Matrix/CW Metering on SB800 TTl
Bravozulu Silver Member
30th Nov 2012
9
               Reply message RE: Matrix/CW Metering on SB800 TTl
Arkayem Moderator
02nd Dec 2012
11
                    Reply message RE: Matrix/CW Metering on SB800 TTl
Bravozulu Silver Member
02nd Dec 2012
12
                         Reply message RE: Matrix/CW Metering on SB800 TTl
John Bertotti Silver Member
02nd Dec 2012
13
                              Reply message RE: Matrix/CW Metering on SB800 TTl
Bravozulu Silver Member
02nd Dec 2012
14
                              Reply message RE: Matrix/CW Metering on SB800 TTl
John Bertotti Silver Member
02nd Dec 2012
15
                              Reply message RE: Matrix/CW Metering on SB800 TTl
Arkayem Moderator
02nd Dec 2012
17
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Bravozulu Silver Member
02nd Dec 2012
19
                              Reply message RE: Matrix/CW Metering on SB800 TTl
Arkayem Moderator
02nd Dec 2012
16
                                   Reply message RE: Matrix/CW Metering on SB800 TTl
John Bertotti Silver Member
02nd Dec 2012
18
Reply message RE: Matrix/CW Metering on SB800 TTl
Bravozulu Silver Member
28th Nov 2012
4
     Reply message RE: Matrix/CW Metering on SB800 TTl
John Bertotti Silver Member
29th Nov 2012
5
     Reply message RE: Matrix/CW Metering on SB800 TTl
Chris Platt Silver Member
02nd Dec 2012
20
          Reply message RE: Matrix/CW Metering on SB800 TTl
Bravozulu Silver Member
03rd Dec 2012
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