Nikon

D3100

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The Nikon D3100 is a digital single-lens reflex camera (DSLR) in the Nikon D-series. The Nikon D3100 is an entry-level camera that uses a DX-sensor format, which is smaller than a 35mm film frame.^[1]

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Plate 01Nikon D3100 DSLR Basic beginner tutorial training Part 1
Tom R Photography Watch on YouTube
Plate 02Nikon D3100 In 2025? Using a 15 year old budget DSLR
Tom R Photography Watch on YouTube
Plate 03Nikon D3100 + 18-55 mm f/3.5-5.6G DX VR (test ASMR)
ShuttarioWatch on YouTube
Plate 04POV Nikon D3100 - Bench in the park in the autumn rain - nature photography
JedmalWatch on YouTube
Plate 05Nikon D3100 auto focus test (liveview mode)
ShuttarioWatch on YouTube

What it is

The Nikon D3100 is a digital single-lens reflex camera.^[2]^[3]^[4]

The Nikon D3100 uses a Nikon F bayonet mount and a DX-format image sensor.^[2]^[3]

How it works

The Nikon D3100 forms an image with a CMOS sensor and records still images in JPEG and NEF RAW formats.^[2]^[3]

The Nikon D3100 uses TTL phase-detection autofocus through a Nikon Multi-CAM 1000 autofocus sensor module with eleven focus points.^[2]^[3]

The Nikon D3100 includes Live View, a built-in monaural microphone, and motion-picture capture with sound.^[2]^[3]

Applications

The Nikon D3100 is used for still photography and motion-picture capture.^[2]^[3]

The Nikon D3100 supports scene-based photography, including portrait, landscape, child, sports, close-up, and night-portrait modes.^[2]^[3]

What do the numbers mean?

Optics & imaging3

Camera type: Digital single-lens reflex camera (DSLR)^[1]
Type: Single-lens reflex digital camera^[2]
Lens mount: Nikon F bayonet mount^[2]

Dimensions & facilities2

Approx. dimensions: 4.9 x 3.8 x 2.9 in. (124.46 x 96.52 x 73.66 mm)^[2]
Approx. weight: 16 oz. (455 g)^[2]

Configuration & options14

Sensor format: DX format (APS-C-size sensor, approximately 2/3 the size of a 35mm film frame)^[1]
Product line: Nikon D-series^[1]
Effective pixels: 14.2 million^[2]
Image sensor format: DX^[2]
Image sensor: 23.1 mm x 15.4 mm CMOS sensor^[3]
Total pixels: 14.8 million^[2]
Storage media: SD, SDHC, SDXC^[2]
Movie recording: Full HD 1,920 x 1,080 / 24 fps; HD 1,280 x 720 / 30 fps; HD 1,280 x 720 / 24 fps; VGA 640 x 424 / 30 fps; movie with sound^[2]
Monitor: 3 in. diagonal Wide Viewing Angle TFT-LCD^[2]
Battery: One EN-EL14a Rechargeable Li-ion Battery or EN-EL14 Rechargeable Li-ion Battery^[2]
ISO sensitivity: ISO 100 - 3200; Hi-1 (ISO 6400); Hi-2 (ISO 12,800)^[2]
Autofocus system: Nikon Multi-CAM 1000 autofocus sensor module with TTL phase detection^[2]
AF points: 11^[2]
Flash sync speed: 1/200 sec.^[2]

Vintage & configurations

2026Archived^[2]
The Nikon D3100 product page states that the product has been archived.

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Not publicly documented

The following facts about the D3100 are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.

No publicly documented variants, configuration options, or revision breakpoints of the D3100 are on record.
Answerable by: an OEM product catalog or an engineer who ordered or specified the tool
The control-system platform and OS era of the D3100 are not on record.
Answerable by: an engineer who operated it or OEM installation records
No publicly documented failure modes or field errata for the D3100 are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the D3100 is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No publicly documented compatible parts, consumables, or accessories for the D3100 are on record.
Answerable by: an OEM parts catalog or a service engineer