![\"Magnifying](\"https:\/\/fotografeer.nl\/wp-content\/uploads\/2016\/03\/DSC_3714-2-1024x681.jpg\")
<\/figure>\n\n\n\nPhotographic Lens<\/h2>\n\n\n\n
A photographic lens<\/a> is composed of several singular lenses with fixed and movable parts that allow it to zoom and focus. In these photography tips we imply a photographic lens<\/a> when using the term “lens”. This is a cross section of a Nikkor lens<\/a> that cleary shows the different parts.<\/p>\n\n\n\n See also a cross section of a Leica lens<\/a>.<\/p>\n\n\n\n To better explain lenses properties and characteristics we go back in time when only fixed focal length<\/a> lenses existed and the zoom lens<\/a> wasn’t invented yet. Maybe you’ve seen a TV camera<\/a> from the 1950s in a museum. They had a rotating plate with lenses from the catergories below. Only one of the lenses could be used at the same time. The three most used lens categories are:<\/p>\n\n\n\n For more information on professional TV cameras from past and present, visit www.tvcameramuseum.org<\/a>.<\/p>\n\n\n\n Use the sun<\/a> and a magnifying glass<\/a> to concentrate sunbeams<\/a> in one point on a piece of paper. This point is called the focal point<\/a> (F). The distance from the lens to the focal point to is called the focal length<\/a> (f).<\/p>\n\n\n\n The human eye<\/a> has an angle of view<\/a> of approximately 45\u00b0. Wide angle lens<\/a>es have an angle of view<\/a> of roughly 114\u00b0 to 63\u00b0. A normal lens<\/a> has a comparable angle of view<\/a> with the human eye of 45\u00b0 degrees. Tele lenses have a angle of view<\/a> from 35\u00b0 to a few degrees. The angle of view<\/a> not only depends on the focal length<\/a>. It also depends on the diagonal of the light-sensitive surface<\/a> (e.g. film<\/a>, CCD<\/a> or CMOS sensor<\/a>). The values mentioned above relate to a surface area of 24×36 mm of a standard 35 mm frame ( = full-frame).<\/p>\n\n\n\n Zoom lens<\/a>es have a variable focal length<\/a> within a given range. The range of a 24-70 mm lens extends from wide angle<\/a> to light tele<\/a>. You can select any focal length<\/a> between 24 en 70 mm. Here is a depiction of a 35-105 mm lens<\/a> on a Nikon F-801s<\/a>.<\/p>\n\n\n\n Lenses with a fixed focal length and a fixed diagonal of the light-sensitive surface<\/a> in the camera have a fixed angle of view<\/a>. Nowadays you find them in cameras of mobile phones. DSLR<\/a> cameras also still have fixed focal length lenses available. These have less moving parts and lens components. They are often more light sensitive, produce sharper images and can be more affordable.<\/p>\n\n\n\n It is important to know what type of lens you are using (or set on your zoom lens). Each type of lens<\/a> has different characteristics and poperties that strongly effect the photograph. More about this in the post Lens Features<\/a>.<\/p>\n\n\n\n <\/p>\n","protected":false},"excerpt":{"rendered":" Characteristics and poperties explained through lenses with a fixed focal length.<\/p>\n","protected":false},"author":2,"featured_media":705,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[30],"tags":[74],"class_list":["post-442","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-photography-tips-en","tag-lens___en"],"lang":"en","translations":{"en":442,"nl":444},"pll_sync_post":[],"_links":{"self":[{"href":"https:\/\/fotografeer.nl\/index.php?rest_route=\/wp\/v2\/posts\/442","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fotografeer.nl\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fotografeer.nl\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fotografeer.nl\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/fotografeer.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=442"}],"version-history":[{"count":39,"href":"https:\/\/fotografeer.nl\/index.php?rest_route=\/wp\/v2\/posts\/442\/revisions"}],"predecessor-version":[{"id":2023,"href":"https:\/\/fotografeer.nl\/index.php?rest_route=\/wp\/v2\/posts\/442\/revisions\/2023"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fotografeer.nl\/index.php?rest_route=\/wp\/v2\/media\/705"}],"wp:attachment":[{"href":"https:\/\/fotografeer.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=442"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fotografeer.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=442"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fotografeer.nl\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=442"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"Cross](\"https:\/\/fotografeer.nl\/wp-content\/uploads\/2016\/03\/DSC_2881-cropped-2.jpg\")
<\/figure>\n\n\n\nCategories<\/h2>\n\n\n\n
\n
![\"1950s](\"https:\/\/fotografeer.nl\/wp-content\/uploads\/2016\/03\/tvcamera-2.png\")
\u00a9 tvcameramuseum.org<\/a> – used with permission<\/figcaption><\/figure>\n\n\n\nFocal Length<\/h2>\n\n\n\n
![\"Magnifying](\"https:\/\/fotografeer.nl\/wp-content\/uploads\/2016\/03\/DSC_6050-copy-2-1024x683.jpg\")
<\/figure>\n\n\n\nAngle of View<\/h2>\n\n\n\n
Zoom lenses<\/h2>\n\n\n\n
![\"35-105mm](\"https:\/\/fotografeer.nl\/wp-content\/uploads\/2016\/03\/DSC_3717-2-1024x681.jpg\")
<\/figure>\n\n\n\nFixed Focal Length<\/h2>\n\n\n\n
![\"Fixed](\"https:\/\/fotografeer.nl\/wp-content\/uploads\/2016\/03\/DSC_3710-5-1024x681.jpg\")
<\/figure>\n\n\n\nCharacteristic and Properties<\/h2>\n\n\n\n
![\"Fixed](\"https:\/\/fotografeer.nl\/wp-content\/uploads\/2016\/03\/DSC_3705-cropped-2.jpg\")
<\/figure>\n\n\n\n