Nikon D40 User Manual download pdf (Page 132)

120 Technical Notes/Specifications

Exposure

Metering Three-mode through-the-lens (TTL) exposure metering system

Matrix 3D color matrix metering II (type G and D lenses); color matrix metering II (other CPU

lenses); metering performed by 420-pixel RGB sensor

Center-weighted Weight of 75% given to 8-mm circle in center of frame

Spot Meters 3.5-mm circle (about 2.5% of frame) centered on active focus area

Range (ISO 100 equivalent,

f/1.4 lens, 20°C/68°F)

0–20EV (3D color matrix or center-weighted metering)

2–20EV (spot metering)

Exposure meter coupling CPU coupling

Digital Vari-Program/

exposure modes

Digital Vari-Program ( auto, auto/no flash, portrait, landscape, child,

sports, close-up, night portrait); programmed auto (P) with flexible program;

shutter-priority auto (S); aperture-priority auto (A); manual (M)

Exposure compensation –5–+5EV in increments of

/3 EV

Exposure lock Exposure locked at detected value with AE-L/AF-L button

Shutter Combined mechanical and CCD electronic shutter

Speed 30–¼,000 s in steps of

/3 EV, bulb

White balance Auto (TTL white balance with 420-pixel RGB sensor); six manual modes with fine tun-

ing and preset white balance

Built-in flash • , , , , : Auto flash with auto pop-up

• P, S, A, M: Manual pop-up with button release

Guide number (m/ft) • 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)

Flash

Sync contact X-contact only; flash synchronization at shutter speeds of up to

/500 s

Flash control

TTL TTL flash control by 420-pixel 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

Auto aperture Available with SB-800 and CPU lens

Non-TTL auto Available with such Speedlights as SB-800, 80DX, 28DX, 28, 27, and 22s

Range-priority manual Available with SB-800

Flash mode • , , , : Auto, auto with red-eye reduction; fill-flash and red-eye reduction

available with optional Speedlight

• : Auto slow sync with red-eye reduction, auto slow sync; slow sync with red-eye

reduction and slow sync available with optional Speedlight

• , : Fill-flash and red-eye reduction available with optional Speedlight

• P, A : Fill flash, red-eye reduction, slow sync with red-eye reduction, slow sync, rear-cur-

tain with slow sync

• S, M: Fill flash, red-eye reduction, rear-curtain sync

Flash compensation –3–+1EV in increments of

/3 EV

Flash-ready indicator 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

Accessory shoe Standard ISO hot-shoe contact with sync, signal, and ground contacts and safety lock

Nikon Creative Lighting

System

Supported with built-in flash, SB-400, SB-800, and SB-600; Advanced Wireless Lighting

supported with SB-800 or SU-800 as Commander.

Monitor 2.5in., 230,000-dot, low-temperature polysilicon TFT LCD with brightness adjustment

Video output Can be selected from NTSC and PAL

External interface Hi-Speed USB

Tripod socket ¼in. (ISO 1222)

Firmware upgrades Firmware can be upgraded by user

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Nikon D40 User Manual Page 132

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