Camera Basics - Focal Length

Focal Plane Explained by Mark Wallace

フォーカステクニックをマスターする。焦点はどこに置きますか？過焦点距離とは何ですか？

Focus Points: Ask David Bergman

4.0. Focus Points and Focus Rules - understand FOCUS for better photos.

カメラレンズ初心者のための究極ガイド

Choose the Right Focus Area on your Sony Alpha Camera

Using a Digital Camera : What Is the Focal Point of a Lens?

Sony RX1R III – The Ultimate Compact Full-Frame Camera!

How Lenses Function

Optics explained 2: Focus or Focal point

How to control the focus points on a NIKON & CANON DSLR.

Adjusting Camera Focus | Physics with Professor Matt Anderson | M28-04

Why don't all my camera auto focus points work? | Two minute tutorial

初心者向けカメラレンズの説明（数字は何を意味するのか？）

"What is Focal Length?" - The science behind it explained.

Where EXACTLY Should You Put Your Focal Point?!

Cameras Focus Modes Explained: When to Use Continuous Auto Focus, Single Auto Focus or Manual Focus

Camera Basics - Aperture

PHOTOS OUT OF FOCUS? HERE'S WHY