Nikon D2x 사용자 설명서

SB-80DX, SB-28DX, SB-50DX: D-TTL Flash Control
The type of fl ash control used with the SB-80DX, SB-28DX, and SB-50DX 
depends on the lens attached:

3D Multi-Sensor Balanced Fill-Flash for Digital SLR: Speedlight emits series 
of near ly in vis i ble prefl ashes (mon i tor pre fl ash es) immediately before main 
fl ash.  Pre fl ash es re fl ect ed from objects in all areas of frame are picked up 
by fi ve-segment TTL fl ash control sensor and  an a lyzed in combination with 
range information from lens to adjust fl ash output for natural balance be-
tween main subject and ambient background lighting.  Not avail able when 
spot me ter ing is used.

Type

G or D

lens

Multi-Sensor Balanced Fill-Flash for Digital SLR: As above, except that 
range information is not included in reg u lat ing fl ash output.    Precision of 
calculation can be increased for non-CPU lenses by providing lens data (fo-
cal length and maximum aperture; 

 128–131).  Not available when spot 

me ter ing is used.

Other 

lenses

Standard TTL Flash for Digital SLR: Flash output adjusted to bring lighting in 
frame to standard level; brightness of back ground is not taken into ac count.  
Rec om mend ed for shots in which main subject is em pha sized at ex pense 
of back ground details, or when exposure com pen sa tion is used.  Standard 
TTL fl ash for digital SLR is activated automatically when spot me ter ing is 
selected.

All 

types