Nikon D3100 Digital Field Guide User Manual

About this manual

This guide walks you through the exterior controls of the Nikon D3100, covering the top, back, front, and side of the camera. It describes each button, dial, and switch, explaining how they affect shooting modes, exposure, focus, and playback.

The manual also details the LCD screen, viewfinder, Live View and movie functions, as well as the Info display and help icons, helping users understand on‑camera indicators such as ISO, exposure compensation, and focus mode.

What's inside

• Top‑of‑the‑camera controls
• Back‑of‑the‑camera controls
• Live View and Movie Recording
• Info Display and Help
• Front and side controls
• Exposure and Metering Settings
• AF area and focus modes

Specifications

Frequently asked questions

What does the Shutter Release button do?

Half‑pressing the button activates autofocus and the light meter; fully pressing releases the shutter and takes a photo.

How do you activate Live View on the D3100?

Flip the Live View switch to the right to turn on Live View, then press the adjacent button to start video recording.

What is the purpose of the Info button?

Pressing the Info button shows the Info display, where you can quickly access and change common camera settings.