Nikon D40 Owner's Manual page 132

Exposure
Metering
Matrix
Center-weighted
Spot
Range (ISO 100 equivalent,
f/1.4 lens, 20°C/68°F)
Exposure meter coupling
Digital Vari-Program/
exposure modes
Exposure compensation
Exposure lock
Shutter
Speed
White balance
Built-in flash
Guide number (m/ft)
Flash
Sync contact
Flash control
TTL
Auto aperture
Non-TTL auto
Range-priority manual
Flash mode
Flash-ready indicator
Accessory shoe
Nikon Creative Lighting
System
Monitor
Video output
External interface
Tripod socket
Firmware upgrades
120 Technical Notes/Specifications
Three-mode through-the-lens (TTL) exposure metering
3D color matrix metering II (type G and D lenses); color matrix metering II (other CPU
lenses); metering performed by 420-segment RGB sensor
Weight of 75% given to 8-mm circle in center of frame
Meters 3.5-mm circle (about 2.5% of frame) centered on active focus area
0–20EV (3D color matrix or center-weighted metering)
2–20EV (spot metering)
CPU coupling
Digital Vari-Program (
sports, close-up, night portrait); programmed auto (P) with flexible program;
shutter-priority auto (S); aperture-priority auto (A); manual (M)
–5–+5EV in increments of
Exposure locked at detected value with AE-L/AF-L button
Combined mechanical and CCD electronic shutter
30–¼ s in steps of / EV, bulb
1
,000 3
Auto (TTL white balance with 420-segment RGB sensor); six manual modes with fine
tuning and preset white balance
• , , , , : Auto flash with auto pop-up
• P, S, A, M: Manual pop-up with button release
• Approximately 17/55 at ISO 200 and 20°C/68°F (manual 18/59)
• Approximately 12/39 at ISO 100 and 20°C/68°F (manual 13/42)
X-contact only; flash synchronization at shutter speeds of up to
TTL flash control by 420-segment RGB sensor. i-TTL balanced fill-flash for digital SLR
and standard i-TTL fill-flash for digital SLR available when CPU lens is used with built-in
flash, SB-400, SB-800, and SB-600
Available with SB-800 and CPU lens
Available with such Speedlights as SB-800, 80DX, 28DX, 28, 27, and 22s
Available with SB-800
• , , , : Auto, auto with red-eye reduction; fill-flash and red-eye reduction
available with optional Speedlight
• : Auto, auto slow sync, auto slow sync with red-eye reduction; slow sync and slow
sync with red-eye reduction available with optional Speedlight
• , : Fill-flash and red-eye reduction available with optional Speedlight
• P, A: Fill flash, rear-curtain with slow sync, slow sync, slow sync with red-eye reduction,
red-eye reduction
• S, M: Fill flash, rear-curtain sync, red-eye reduction
Lights when built-in flash or SB-series Speedlight such as 400, 800, or 600 is fully
charged; blinks for about 3s after flash is fired at full output
Standard ISO hot-shoe contact with sync, signal, and ground contacts and safety lock
Supported with built-in flash, SB-400, SB-800, and SB-600; Advanced Wireless Lighting
supported with SB-800 or SU-800 as Commander.
2.5in., 230,000-dot, low-temperature polysilicon TFT LCD with brightness adjustment
Can be selected from NTSC and PAL
USB 2.0 Hi-speed
¼in. (ISO 1222)
Firmware can be upgraded by user
auto, auto/no flash,
/ EV
1
3
portrait, landscape,
/ s
1
500
child,