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		<title>カメラレンズの値段はどこで決まる？コスパのよいレンズの見つけ方</title>
		<link>https://buzz.camera/cp-lens/</link>
					<comments>https://buzz.camera/cp-lens/#respond</comments>
		
		<dc:creator><![CDATA[cloud9apps]]></dc:creator>
		<pubDate>Sun, 06 Sep 2020 06:00:00 +0000</pubDate>
				<category><![CDATA[レンズ]]></category>
		<category><![CDATA[カメラ]]></category>
		<category><![CDATA[コスパ]]></category>
		<category><![CDATA[サードパーティ]]></category>
		<category><![CDATA[マウント]]></category>
		<category><![CDATA[単焦点]]></category>
		<category><![CDATA[ｆ値]]></category>
		<guid isPermaLink="false">https://buzz.camera/?p=1396</guid>

					<description><![CDATA[<p>カメラレンズを探していると、初心者のうちは「これとこれ何が違うの？」と思うことが多くあります。パッと見書いてある性能は同じように見えるのに、価格は倍以上。店員さんに聞いても、いまいち説明が分からない。そんな悩みを解決する [&#8230;]</p>
The post <a href="https://buzz.camera/cp-lens/">カメラレンズの値段はどこで決まる？コスパのよいレンズの見つけ方</a> first appeared on <a href="https://buzz.camera">Buzzカメラ</a>.]]></description>
										<content:encoded><![CDATA[<p>カメラレンズを探していると、初心者のうちは「これとこれ何が違うの？」と思うことが多くあります。パッと見書いてある性能は同じように見えるのに、価格は倍以上。<br>店員さんに聞いても、いまいち説明が分からない。<br>そんな悩みを解決するため、こちらでは「レンズの値段はどこで決まるのか」そして「コスパの良いレンズの見つけ方」をできるだけ簡単にお伝えします。</p>



<span id="more-1396"></span>




  <div id="toc" class="toc tnt-number tnt-number border-element"><input type="checkbox" class="toc-checkbox" id="toc-checkbox-2" checked><label class="toc-title" for="toc-checkbox-2">目次</label>
    <div class="toc-content">
    <ol class="toc-list open"><li><a href="#toc1" tabindex="0">カメラレンズの値段を左右するのは何？</a><ol><li><a href="#toc2" tabindex="0">ｆ値</a></li><li><a href="#toc3" tabindex="0">レンズやマウントの材質</a></li><li><a href="#toc4" tabindex="0">その他の要因</a></li></ol></li><li><a href="#toc5" tabindex="0">コスパの良いレンズの見つけ方</a><ol><li><a href="#toc6" tabindex="0">性能の取捨選択をしよう</a></li><li><a href="#toc7" tabindex="0">コスパ抜群な単焦点使ってみませんか？</a></li><li><a href="#toc8" tabindex="0">価格重視の方はサードパーティーレンズ</a></li></ol></li></ol>
    </div>
  </div>

<h2><span id="toc1">カメラレンズの値段を左右するのは何？</span></h2>



<h3><span id="toc2">ｆ値</span></h3>



<figure class="wp-block-image size-large"><img decoding="async" width="1024" height="683" src="https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/52028_m.jpg?resize=1024%2C683&#038;ssl=1" alt="" class="wp-image-1401" srcset="https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/52028_m.jpg?resize=1024%2C683&amp;ssl=1 1024w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/52028_m.jpg?resize=300%2C200&amp;ssl=1 300w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/52028_m.jpg?resize=768%2C512&amp;ssl=1 768w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/52028_m.jpg?resize=1536%2C1024&amp;ssl=1 1536w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/52028_m.jpg?resize=50%2C33&amp;ssl=1 50w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/52028_m.jpg?w=1920&amp;ssl=1 1920w" sizes="(max-width: 1024px) 100vw, 1024px" data-recalc-dims="1" /></figure>



<p>まず、レンズの値段をかなり左右するのは「<strong>ｆ値</strong>」です。<br>レンズの性能の中でも、主たる用語です。</p>



<p>ｆ値は<strong>小さいほど明るく</strong>撮れ、値はその度合いを表しています。<br>この<strong>明るく撮れる</strong>ということは、写真においてかなり重要なポイントです。</p>



<p>実際、Canonの二つのレンズを比べてみます。</p>



<p>①EF70-300mm F4-5.6 IS II USM　希望小売価格：72000円<br>②EF70-200mm F2.8L IS II USM　オープン価格：30万円前後</p>



<p>価格を見ると②の方が、①の4倍ほどします。<br>肝心のｆ値を見ると、①は4‐5.6、②は2.8とあります。</p>



<p>初心者の頃は、ｆ値の数字だけ見ると4と2.8はそれほど差はないように思ってしまいます。<br>しかし、<strong>ｆ値の差はとんでもなく大きい</strong>のです。</p>



<p>しかも②は、70‐200㎜の焦点距離どこで撮影してもｆ値が2.8固定という、プロ御用達のレンズです。</p>



<p>ただし、<strong>ｆ値は価格差がはっきりと出る</strong>ところなので、最初からあまり性能が良いものを選び過ぎても<strong>コストが掛かってしまいます</strong>。<br>明るさは大切とは言いましたが、かなり値段が違ってくるので、<strong>最初のうちはそこまで追及する必要はない</strong>でしょう。</p>



<h3><span id="toc3">レンズやマウントの材質</span></h3>



<figure class="wp-block-image size-large"><img decoding="async" loading="lazy" width="1024" height="768" src="https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/279821_m.jpg?resize=1024%2C768&#038;ssl=1" alt="" class="wp-image-1402" srcset="https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/279821_m.jpg?resize=1024%2C768&amp;ssl=1 1024w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/279821_m.jpg?resize=300%2C225&amp;ssl=1 300w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/279821_m.jpg?resize=768%2C576&amp;ssl=1 768w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/279821_m.jpg?resize=1536%2C1152&amp;ssl=1 1536w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/279821_m.jpg?resize=50%2C38&amp;ssl=1 50w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/279821_m.jpg?w=1920&amp;ssl=1 1920w" sizes="(max-width: 1024px) 100vw, 1024px" data-recalc-dims="1" /></figure>



<p>レンズの値段を左右する2つ目は、<strong>使われる材質</strong>です。</p>



<p>まずは、マウント部などが<strong>プラスチック製</strong>か、しっかりした<strong>金属製</strong>かという点です。<br>高価なレンズは大きく重くなるので、<strong>しっかり支えられる金属</strong>である必要があり、その分高価になります。</p>



<p>次に大切なのは<strong>レンズ自体の品質</strong>です。<br>レンズを通して映像を記録するので、レンズで劣化が起きてはいけません。</p>



<p>その画質の劣化を「<strong>収差</strong>」と呼びます。<br>同じようなスペックに見えても、素材に<strong>収差の起きにくいレンズ</strong>を使っていると、高価になります。</p>



<p>また、高価なレンズほど、収差をなくすために<strong>内部の構造が複雑</strong>です。<br><strong>レンズの収差をレンズで補正</strong>する、ということもあり<strong>高度な技術が必要</strong>となります。</p>



<p>安価なレンズは<strong>大量に工場生産</strong>できるため、<strong>価格を抑えられる</strong>という点も大きいです。<br>反面、高価なレンズは何十年と経験のある<strong>職人が手がける</strong>ため、どうしても<strong>高価</strong>になってしまいます。</p>



<h3><span id="toc4">その他の要因</span></h3>



<figure class="wp-block-image size-large"><img decoding="async" loading="lazy" width="1024" height="683" src="https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/1482461_m.jpg?resize=1024%2C683&#038;ssl=1" alt="" class="wp-image-1403" srcset="https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/1482461_m.jpg?resize=1024%2C683&amp;ssl=1 1024w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/1482461_m.jpg?resize=300%2C200&amp;ssl=1 300w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/1482461_m.jpg?resize=768%2C512&amp;ssl=1 768w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/1482461_m.jpg?resize=1536%2C1024&amp;ssl=1 1536w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/1482461_m.jpg?resize=50%2C33&amp;ssl=1 50w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/1482461_m.jpg?w=1920&amp;ssl=1 1920w" sizes="(max-width: 1024px) 100vw, 1024px" data-recalc-dims="1" /></figure>



<p>他にレンズの値段を決めるのは<strong>フレア・ゴーストの軽減加工</strong>や<strong>AF(オートフォーカス)速度</strong>、<strong>解像度</strong>などが関係してきます。</p>



<p>カメラ用語でフレアは<strong>強い光により一部や全体が白っぽくなる現象</strong>、ゴーストは<strong>レンズなどで反射した光が画像上に映り込む現象</strong>です。<br>高価なレンズの方が、<strong>このような現象が起こりづらい加工</strong>がされています。</p>



<p>ただ、どちらも意図せず映り込むと困りますが、わざと<strong>作品の一部として利用</strong>することもあります。<br>光を上手く使って<strong>印象的な作品</strong>を作ることもできます。</p>



<p>メリット・デメリットがあるので、初心者のうちはそこまでシビアになる必要はないでしょう。<br>どうしても光が入って困る場合は、<strong>レンズフードなどで対策</strong>もできます。</p>


<div class="amazon-item-box product-item-box no-icon pis-m エレクトロニクス B07WSBS6X6 cf"><figure class="amazon-item-thumb product-item-thumb"><a rel="nofollow noopener" href="https://www.amazon.co.jp/dp/B07WSBS6X6?tag=tecco-22&#038;linkCode=ogi&#038;th=1&#038;psc=1" class="amazon-item-thumb-link product-item-thumb-link image-thumb" target="_blank" title="レンズフード 52mm-67mmレンズ用 夜景撮影 窓ガラスの映り込みを防止 簡単装着 一眼レフ 望遠レンズ 動画撮影 柔軟性 水洗い FENGLV"><img src="https://i0.wp.com/m.media-amazon.com/images/I/41Oy66GlNXL._SL160_.jpg?resize=160%2C160&#038;ssl=1" alt="レンズフード 52mm-67mmレンズ用 夜景撮影 窓ガラスの映り込みを防止 簡単装着 一眼レフ 望遠レンズ 動画撮影 柔軟性 水洗い FENGLV" width="160" height="160" class="amazon-item-thumb-image product-item-thumb-image" loading="lazy" decoding="async" data-recalc-dims="1"><div class="amazon-item-thumb-l product-item-thumb-l image-content"><img src="https://i0.wp.com/m.media-amazon.com/images/I/41Oy66GlNXL._SL500_.jpg?resize=500%2C500&#038;ssl=1" alt="" width="500" height="500" loading="lazy" decoding="async" data-recalc-dims="1"></div></a><a rel="nofollow noopener" href="https://www.amazon.co.jp/dp/B07WSBS6X6?tag=tecco-22&#038;linkCode=ogi&#038;th=1&#038;psc=1" class="swatchimages" target="_blank"><div class="image-thumb swatch-image-thumb si-thumb"><img src="https://i0.wp.com/m.media-amazon.com/images/I/51M55gvY9+L._SL75_.jpg?resize=75%2C75&#038;ssl=1" alt="" width="75" height="75" loading="lazy" decoding="async" data-recalc-dims="1"><div class="image-content"><img src="https://i0.wp.com/m.media-amazon.com/images/I/51M55gvY9+L._SL500_.jpg?resize=500%2C500&#038;ssl=1" alt="" width="500" height="500" loading="lazy" decoding="async" data-recalc-dims="1"></div></div><div class="image-thumb swatch-image-thumb si-thumb"><img src="https://i0.wp.com/m.media-amazon.com/images/I/51-XWiBS4zL._SL75_.jpg?resize=75%2C75&#038;ssl=1" alt="" width="75" height="75" loading="lazy" decoding="async" data-recalc-dims="1"><div class="image-content"><img src="https://i0.wp.com/m.media-amazon.com/images/I/51-XWiBS4zL._SL500_.jpg?resize=500%2C500&#038;ssl=1" alt="" width="500" height="500" loading="lazy" decoding="async" data-recalc-dims="1"></div></div><div class="image-thumb swatch-image-thumb si-thumb"><img src="https://i0.wp.com/m.media-amazon.com/images/I/51SzSvktzVL._SL75_.jpg?resize=75%2C75&#038;ssl=1" alt="" width="75" height="75" loading="lazy" decoding="async" data-recalc-dims="1"><div class="image-content"><img src="https://i0.wp.com/m.media-amazon.com/images/I/51SzSvktzVL._SL500_.jpg?resize=500%2C500&#038;ssl=1" alt="" width="500" height="500" loading="lazy" decoding="async" data-recalc-dims="1"></div></div><div class="image-thumb swatch-image-thumb si-thumb sp-display-none"><img src="https://i0.wp.com/m.media-amazon.com/images/I/51y6UGbcKFL._SL75_.jpg?resize=75%2C75&#038;ssl=1" alt="" width="75" height="75" loading="lazy" decoding="async" data-recalc-dims="1"><div class="image-content"><img src="https://i0.wp.com/m.media-amazon.com/images/I/51y6UGbcKFL._SL500_.jpg?resize=500%2C500&#038;ssl=1" alt="" width="500" height="500" loading="lazy" decoding="async" data-recalc-dims="1"></div></div><div class="image-thumb swatch-image-thumb si-thumb sp-display-none"><img src="https://i0.wp.com/m.media-amazon.com/images/I/41K6BCjQ2iL._SL75_.jpg?resize=75%2C75&#038;ssl=1" alt="" width="75" height="75" loading="lazy" decoding="async" data-recalc-dims="1"><div class="image-content"><img src="https://i0.wp.com/m.media-amazon.com/images/I/41K6BCjQ2iL._SL500_.jpg?resize=500%2C500&#038;ssl=1" alt="" width="500" height="500" loading="lazy" decoding="async" data-recalc-dims="1"></div></div></a></figure><div class="amazon-item-content product-item-content cf"><div class="amazon-item-title product-item-title"><a rel="nofollow noopener" href="https://www.amazon.co.jp/dp/B07WSBS6X6?tag=tecco-22&#038;linkCode=ogi&#038;th=1&#038;psc=1" class="amazon-item-title-link product-item-title-link" target="_blank" title="レンズフード 52mm-67mmレンズ用 夜景撮影 窓ガラスの映り込みを防止 簡単装着 一眼レフ 望遠レンズ 動画撮影 柔軟性 水洗い FENGLV">レンズフード 52mm-67mmレンズ用 夜景撮影 窓ガラスの映り込みを防止 簡単装着 一眼レフ 望遠レンズ 動画撮影 柔軟性 水洗い FENGLV</a></div><div class="amazon-item-snippet product-item-snippet"><div class="amazon-item-maker product-item-maker">FENGLV</div><div class="amazon-item-review product-item-review item-review"><span class="fa fa-comments-o" aria-hidden="true"></span> <a rel="nofollow noopener" class="amazon-item-review-link  product-item-review-link item-review-link" href="https://www.amazon.co.jp/product-reviews/B07WSBS6X6/?tag=tecco-22" target="_blank">Amazonの商品レビュー・口コミを見る</a></div></div><div class="amazon-item-buttons product-item-buttons"><div class="shoplinkamazon"><a rel="nofollow noopener" href="https://www.amazon.co.jp/gp/search?keywords=%E3%83%AC%E3%83%B3%E3%82%BA%E3%83%95%E3%83%BC%E3%83%89&#038;tag=tecco-22" target="_blank">Amazon</a></div></div></div></div>



<p>AF速度や解像度も、<strong>速く・高くなればなるほど高性能で高価</strong>なレンズになります。<br>最近では、<strong>エントリーモデルのキットレンズ</strong>でもかなり<strong>高性能</strong>なので、敢えてそこまでお金をかける必要はないでしょう。</p>



<h2><span id="toc5">コスパの良いレンズの見つけ方</span></h2>



<h3><span id="toc6">性能の取捨選択をしよう</span></h3>



<figure class="wp-block-image size-large"><img decoding="async" loading="lazy" width="640" height="388" src="https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/1535198_s.jpg?resize=640%2C388&#038;ssl=1" alt="" class="wp-image-1404" srcset="https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/1535198_s.jpg?w=640&amp;ssl=1 640w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/1535198_s.jpg?resize=300%2C182&amp;ssl=1 300w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/1535198_s.jpg?resize=50%2C30&amp;ssl=1 50w" sizes="(max-width: 640px) 100vw, 640px" data-recalc-dims="1" /></figure>



<p>低価格帯のレンズだからといって、低スペックな物ばかりではありません。<br>コスパを求めるなら、自分が<strong>譲れるポイントと譲れないポイント</strong>を決めておきましょう。</p>



<ul><li>AF速度は求めない</li><li>作動音は気にしない</li><li>多少重くてもいい</li></ul>



<p>こんな感じです。</p>



<p>例えば、次で説明する1万円台の激安単焦点レンズの場合。<br>とても<strong>明るくボケもキレイ</strong>と嬉しい点がある一方、<strong>作動音は大きい</strong>です。<br>これは<strong>静かな場所で撮影する方や、動画も撮りたい方</strong>にはおすすめできません。</p>



<p>安いレンズにはそれなりの理由があります。<br>自分が譲れる理由であれば、そのレンズはあなたにとって<strong>最高にコスパのいいレンズ</strong>であると言えます。</p>



<h3><span id="toc7">コスパ抜群な単焦点使ってみませんか？</span></h3>



<figure class="wp-block-image size-large"><img decoding="async" loading="lazy" width="1024" height="683" src="https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/1991826_m.jpg?resize=1024%2C683&#038;ssl=1" alt="" class="wp-image-1405" srcset="https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/1991826_m.jpg?resize=1024%2C683&amp;ssl=1 1024w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/1991826_m.jpg?resize=300%2C200&amp;ssl=1 300w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/1991826_m.jpg?resize=768%2C512&amp;ssl=1 768w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/1991826_m.jpg?resize=1536%2C1024&amp;ssl=1 1536w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/1991826_m.jpg?resize=50%2C33&amp;ssl=1 50w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/1991826_m.jpg?w=1920&amp;ssl=1 1920w" sizes="(max-width: 1024px) 100vw, 1024px" data-recalc-dims="1" /></figure>



<p>初心者でまず<strong>キットレンズ以外のレンズ</strong>を使ってみたいと思ったとき、高確率で候補に挙がるのが<strong>単焦点レンズ</strong>だと思います。<br>キットレンズに単焦点は付いてこないからです。</p>



<p>嬉しいことに、通称「<strong>撒き餌レンズ</strong>」と呼ばれる<strong>低価格で品質もしっかり</strong>とした、単焦点レンズを各メーカーこぞって出しています。<br>「撒き餌」というと聞こえが悪く感じますが、<strong>交換レンズの楽しさを実感</strong>するにはぴったりなレンズです。</p>



<p>各メーカー多いのが、<strong>焦点距離30から50㎜でｆ値1.8</strong>と、とても明るくボケる写真が撮れるレンズです。<br><strong>1万円台</strong>からあるので、<strong>コスパは抜群</strong>です。<br>ズームレンズとの違いにきっと驚くと思いますよ。</p>


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<h3><span id="toc8">価格重視の方はサードパーティーレンズ</span></h3>



<figure class="wp-block-image size-large"><img decoding="async" loading="lazy" width="1024" height="683" src="https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/2843104_m.jpg?resize=1024%2C683&#038;ssl=1" alt="" class="wp-image-1406" srcset="https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/2843104_m.jpg?resize=1024%2C683&amp;ssl=1 1024w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/2843104_m.jpg?resize=300%2C200&amp;ssl=1 300w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/2843104_m.jpg?resize=768%2C512&amp;ssl=1 768w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/2843104_m.jpg?resize=1536%2C1024&amp;ssl=1 1536w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/2843104_m.jpg?resize=50%2C33&amp;ssl=1 50w, https://i0.wp.com/buzz.camera/wp-content/uploads/2020/09/2843104_m.jpg?w=1920&amp;ssl=1 1920w" sizes="(max-width: 1024px) 100vw, 1024px" data-recalc-dims="1" /></figure>



<p>「やっぱり純正メーカー品はちょっと高いな……」と躊躇している方は、<strong>純正以外のレンズ</strong>で探してみてはいかがでしょうか？</p>



<p>純正でないと不安に感じますが、<strong>サードパーティーレンズ</strong>と呼ばれるレンズは、<strong>レンズ専門のメーカー</strong>が作った<strong>品質も確か</strong>なレンズです。<br><strong>タムロン、シグマ</strong>など聞いたことがありませんか？</p>



<p>そして驚くのがその<strong>価格</strong>です。<br><strong>純正レンズの半額程度</strong>の場合もあり、価格重視して<strong>高コスパ</strong>なレンズを探すならサードパーティーレンズを検討してはいかがでしょうか。</p>


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