Nikon D3100 Reference Manual page 7

Guide Mode
The Guide ...................................................................................................................................33
Guide Mode Menus.................................................................................................................34
Live View
Framing Photographs in the Monitor ..............................................................................37
Recording and Viewing Movies
Recording Movies ....................................................................................................................45
Viewing Movies ........................................................................................................................49
Editing Movies ..........................................................................................................................50
Trimming Movies ....................................................................................................................50
Saving Selected Frames........................................................................................................52
Release Mode
Choosing a Release Mode ....................................................................................................53
Self-Timer Mode.......................................................................................................................54
More on Photography (All Modes)
Focus ............................................................................................................................................55
Focus Mode...............................................................................................................................55
AF-Area Mode ..........................................................................................................................58
Focus Point Selection ............................................................................................................60
Focus Lock .................................................................................................................................60
Manual Focus ...........................................................................................................................62
Image Quality and Size ..........................................................................................................64
Image Quality ...........................................................................................................................64
Image Size..................................................................................................................................66
Using the Built-in Flash..........................................................................................................67
Flash Mode ................................................................................................................................68
ISO Sensitivity............................................................................................................................71
P, S, A, and M Modes
Shutter Speed and Aperture................................................................................................73
Mode P (Programmed Auto) ..............................................................................................74
Mode S (Shutter-Priority Auto) ..........................................................................................75
Mode A (Aperture-Priority Auto).......................................................................................76
Mode M (Manual)....................................................................................................................77
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