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吉岡 瑛一郎PHOTO入門講座
 基礎編
 カメラの種類、レンズの基本的なスペックについて
 露出編
 絞り、シャッタースピード、ISO感度
 優先モードと露出補正
 ストロボ編
 ちょっとした工夫でここまで変わる!
 構図編
 三分割法、斜め構図
 色・現像編
 ホワイトバランス
PHOTO入門講座内容
基本編
カメラの種類
フルサイズ APS-C 高級コンデジ コンデジ
(スマホ)
一眼レフ なし なし
ミラーレス
一眼レフとミラーレスの違い
一眼レフとミラーレスの違い
特徴
一眼レフ
AFが早い
ファインダが無限画素
ミラーレス撮影ができる
ミラーレス 軽くて小さい
ピーキング機能がある
センサーサイズの違い
センサーサイズの違い
センサーサイズ小 センサーサイズ大
小さい、軽い
発熱が少ない
連射に強い
レンズが安い
カメラが安い
ボケにくい
ダイナミックレンジが広い
ノイズが少ない
 一眼レフ
 オールラウンダーのキヤノン
 安心のニコン
 ミラーレス
 高品質センサのソニー(カールツァイス)
 動画に強いパナソニック(ライカ)
 フィルムノウハウの富士フイルム
 ブルーのオリンパス(ソニー、パナソニック)
 変態のシグマ
メーカの違い
 焦点距離
 Ex) 24-70mm, 50mm
 小さいほど広角、大きいほど挟角
 開放絞り値(F値)
 Ex) F3.5-5.6, F2.8
 小さいほど明るい、大きいほど暗い
 明るいほどボケる、暗いほどピントがあう面が増える
 手振れ補正
 Ex) IS(キヤノン),VR(ニコン),OS(シグマ)
 マクロ
 Ex) 1/2 ,1/1
レンズのスペック
焦点距離
焦点距離の目安
~15mm 35mm 50mm 85mm 100mm~
超広角 広角 標準 中望遠 望遠
星空
建築物
風景
室内撮影 ー
ポートレート
物撮り
マクロ
鳥
スポーツ
発表会
ボケにくい
歪みやすい
手ブレしにくい
ボケやすい
歪みにくい
手ブレしやすい
焦点距離の注意点
 同じ焦点距離でもセンサーサイズに
よって画角が違う
 フルサイズ(50mm)→APS-C(75mm相当)
 APS-Cセンサーは 焦点距離✖️約1.5
露出編
露出のトライアングル
絞り(レンズに依存)
ISO感度
(本体に依存)
シャッタースピード
(本体に依存)
 絞り
 明るさとピント(被写界深度)のトレードオフ
絞り
明るい
ピントが浅い
F値が低い
レンズ価格が高い
Ex)F2.8
暗い
ピントが深い
F値が高い
Ex)F11
絞り変更による影響例
 シャッタースピード
 明るさとブレのトレードオフ
 手ブレの目安は 1/焦点距離 → 50mmなら1/50秒以下でぶれる
シャッタースピード
明るい
ブレやすい
動きに弱い
Ex)1/1
暗い
ブレにくい
動きに強い
Ex)1/8000
遅い早い
シャッタースピード変更による影響例
 ISO感度
 明るさと画質のトレードオフ
 カメラによって高感度耐性が違う
ISO感度
明るい
低画質
Ex)ISO3200
暗い
高画質
Ex)ISO100
高感度低感度
ISO感度変更の影響例
露出イメージ
Q:左の写真を右のように撮るには?
※被写界深度は同じとする
Q:左の写真を右のように撮るには?
露出目安
測光モード
 マルチパターン測光
 中央部重点測光
 スポット測光
 F値とシャッタースピードとISO感度を全部調節するのは厳しい
 F値(とISO感度)だけ自分で決める → 絞り優先モード
 最初はF値を低く(明るく、ぼかす)だけでそれっぽい写真になります
 SS(とISO感度)だけ自分で決める→SS優先モード
 運動会や動物など動きが激しいものはこれで!
 合わせて覚えておきたい露出補正
 どちらも自分でやりたい!
 マニュアルモードの世界へようこそ!
 夜景、星空はマニュアル(+三脚)必須です。
 実際にやってみましょう
でも正直面倒くさい
ストロボ編
そのまま当てるべからず
天井バウンス
構図編
三分割法
三分割法の作例
三分割法の作例
斜線構図
斜線構図の作例
 黄金分割構図
 放射構図
 S字構図
他にも
ホワイトバランス
Q:WBは白熱球か曇りか
Q:WBは白熱球か曇りか
 スマホはF値が固定
 標準カメラアプリはマルチパターン測光によるオートがほとんど
 SSとISO感度(+WB)を自分で調節して絵作りを行う
 動いているものはISO感度を高めに設定しSSを早く
 静物はISOを低くしSSを遅く(三脚があると良い)
 iOS
 Procamera 8 (¥300)
 Manual (¥200)
 Android
 Camera FV-5 (¥320)
おまけ:スマホでの撮影

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PHOTO入門講座

Hinweis der Redaktion

  1. フルサイズとはなんのフルサイズか ミラーレスのミラーとは 価格帯の目安 例外の説明