Nikon D3500 - Autofocus and Focus Lock; Flash System Details

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Focus
Autofocus Nikon Multi-CAM
1000 autofocus sensor module with
TTL phase detection, 11 focus points (including one
cross-type sensor), and AF-assist illuminator (range
approx. 0.5 – 3m/1f t 8in. – 9ft10 in.)
Detection range –1 – +19EV (ISO 100, 20°C/68°F)
Lens servo • Autofocus (AF): Single-servo AF (AF-S); continuous-servo AF
(AF-C); auto AF-S/AF-C selection (AF-A); predictive focus
tracking activated automatically according to subject
status
• Manual focus (MF): Electronic range nder can be used
Focus point Can be selected from
11 focus points
AF-area mode
Single-point AF, dynamic-area AF, auto-area AF,
3D-tracking (11 points)
Focus lock Focus can be locked by pressing shutter-release button
halfway (single-servo AF) or by pressing A(L) button
Flash
Built-in  ash
i, k, n, o, S, T, U, ': Auto  ash with auto pop-up
P, S, A, M: Manual pop-up with button release
Guide Number Approx.
7/22, 8/26 with manual  ash (m/ft, ISO 100,
20°C/68°F)
Flash control TTL: i-TTL  ash control using
420-pixel RGB sensor is
available with built-in  ash; i-TTL balanced  ll- ash for
digital SLR is used with matrix and center-weighted
metering, standard i-TTL  ash for digital SLR with spot
metering
Flash mode Auto, auto with red-eye reduction, auto slow sync, auto
slow sync with red-eye reduction,  ll- ash, red-eye
reduction, slow sync, slow sync with red-eye reduction,
rear-curtain with slow sync, rear-curtain sync, o
Flash compensation Can be adjusted by –3 – +1EV in increments of /EV in P,
S, A, M, and scene modes