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Forums Lobby MASTER YOUR TOOLS - Hardware & Software Nikon Speedlights & Lighting topic #61213
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Subject: "RE: TTL-BL and Tilt Flash Head w/ White Card" Previous topic | Next topic
Arkayem Moderator Awarded for his high level skills in flash photography Charter MemberSun 14-Apr-13 01:53 PM
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#6. "RE: TTL-BL and Tilt Flash Head w/ White Card"
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Richmond Hill, GA (Savannah), US
          

>Am I correct that I do not lose TTL-BL when shooting with the
>head pointed 45 degrees and the white card pulled out? I
>tried it and was pleased with the result. Then again, TTL-BL
>with the flash head pointed directly was nice too but only
>with the diffuser attached.
>
>I also applied -1.7 flash comp.

TTL-BL works best if you do not tilt the head.

The reason for this is that when the flash head is pointed directly at the subject, distance to the subject (as reported by the D lens) is used as the primary input to the BL calculations to determine the correct flash power.

If you tilt the head (or use a non-D lens), the system reverts to the monitor preflash to determine the correct flash power, but that doesn't work very well when in bright daylight. Of course, TTL-BL should only be used in bright ambient conditions and the camera meter must be centered. Most pros shoot TTL-BL fill shots using camera P mode to be sure the meter is always centered.

Most of the time, you don't have to worry about diffusing the light when using TTL-BL mode, because you are only adding a small amount of fill, and diffusing doesn't change the image noticeably.

Russ
Nikonian Moderator
Russell MacDonald Photography
Nikon CLS Practical Guide

  

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A general, generic topicTTL-BL and Tilt Flash Head w/ White Card [View all] , mel_klim Silver Member, Fri 12-Apr-13 02:57 PM
 
Subject Author Message Date ID
Reply message RE: TTL-BL and Tilt Flash Head w/ White Card
MEMcD Moderator
12th Apr 2013
1
Reply message RE: TTL-BL and Tilt Flash Head w/ White Card
mkbee1 Silver Member
12th Apr 2013
2
Reply message RE: TTL-BL and Tilt Flash Head w/ White Card
mel_klim Silver Member
12th Apr 2013
3
Reply message RE: TTL-BL and Tilt Flash Head w/ White Card
westacott Silver Member
13th Apr 2013
4
     Reply message RE: TTL-BL and Tilt Flash Head w/ White Card
mkbee1 Silver Member
13th Apr 2013
5
Reply message RE: TTL-BL and Tilt Flash Head w/ White Card
Arkayem Moderator
14th Apr 2013
6

Forums Lobby MASTER YOUR TOOLS - Hardware & Software Nikon Speedlights & Lighting topic #61213 Previous topic | Next topic


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