Nikon D5100 Mode D'Emploi

164

L

Choose the flash mode for the built-in flash in P, S, A, and M modes.

G button

➜ A Custom Settings menu

1 TTL

Flash output is adjusted automatically in response to shooting conditions.

2 Manual

Choose a flash level between Full and 1/32 (

1

/

32

 of full power). At full power, 

the built-in flash has a Guide Number of 13/43 (m/ft., ISO 100, 20 °C/68 °F).

A

A 

Y icon blinks in the viewfinder and information display when 

Manual is selected and the flash is raised.

A

When an optional SB-400 flash unit (

0 202) is attached and turned 

on, Flash cntrl for built-in flash changes to Optional flash, allowing 
the flash control mode for the SB-400 to be selected from TTL and 
Manual.

A

The following types of flash control are supported when a CPU lens is used in combination 
with the built-in flash or optional SB-900, SB-800, SB-700, SB-600, and SB-400 flash units.
• i-TTL Balanced Fill-Flash for Digital SLR: Information from the 420-pixel RGB sensor is used to 

adjust flash output for a natural balance between the main subject and the background.

• Standard i-TTL Fill-Flash for Digital SLR: Flash output is adjusted for the main subject; the 

brightness of the background is not taken into account. Recommended for shots in which 
the main subject is emphasized at the expense of background details, or when exposure 
compensation is used. 

Standard i-TTL flash control is used with spot metering or when selected with the optional 
flash unit. i-TTL balanced fill-flash for digital SLR is used in all other cases.