Viewing a response to: @musing-threads/f34xbq8l5
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| author | chuuuckie |
|---|---|
| permlink | fk8a6x99x |
| category | musing-threads |
| json_metadata | "{"app":"Musing","appTags":["science"],"appCategory":"science","appTitle":"What is the Difference between Anamorphic Lens and a Spherical Lens?","appBody":"Most DSLRs and other cameras are not even Anamorphic Lens, and as for compact dslrs/mirrorless cameras, they are almost adapting to spherical lenses which I really dont know what are the key differences between the both lenses. We all know Anamorphic is mostly used for Cinematography.","appDepth":1,"musingAppId":"aU2p3C3a8N","musingAppVersion":"1.1","musingPostType":"question"}" |
| created | 2018-11-02 04:50:57 |
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<a href="https://musing.io/q/chuuuckie/fk8a6x99x">View this answer on Musing.io</a><br />
| author | dtube2 |
|---|---|
| permlink | pkjdwql9x |
| category | musing-threads |
| json_metadata | "{"app":"Musing","appTags":["science"],"appCategory":"science","appTitle":"What is the Difference between Anamorphic Lens and a Spherical Lens?","appBody":"<p>There will be a refinement start to finish of field at a comparative f-stop in light of the way that in round, your focal length is half as long. </p>\n<p>You have more vertical objectives with 2X anamorphic IF you are shooting on a 4x3 course of action anyway the anamorphic central focuses are to some degree gentler aside from whenever stopped down, so the standard complexity isn't so much that anamorphic looks more sharp yet it looks less grainy (if shooting film) on account of the greater negative zone and less growing of the image, and there is some assumption of extended detail. </p>\n<p>Anamorphic central focuses have fascinating optical characteristics, twists.</p>","appDepth":2,"appParentPermlink":"fk8a6x99x","appParentAuthor":"chuuuckie","musingAppId":"aU2p3C3a8N","musingAppVersion":"1.1","musingPostType":"answer"}" |
| created | 2018-11-02 05:52:57 |
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<a href="https://musing.io/q/chuuuckie/fk8a6x99x">View this answer on Musing.io</a>
| author | sadman88 |
|---|---|
| permlink | pkzyyq9lx |
| category | musing-threads |
| json_metadata | "{"app":"Musing","appTags":["science"],"appCategory":"science","appTitle":"What is the Difference between Anamorphic Lens and a Spherical Lens?","appBody":"<p>Two classes of lenses are typically used in production: spherical and anamorphic. Spherical are more common and are the assumed lens type unless specified otherwise. Spherical lenses project images onto the sensor without affecting their aspect ratio. Anamorphic lenses, on the other hand, project a version of the image that is compressed along the longer dimension (usually by a factor of two). Anamorphic lenses, therefore, require subsequent stretching, in post-production or at the projector, in order to be properly displayed.</p><p>Motivation for anamorphic lenses</p><p>Anamorphic lenses were originally designed so that wide format imagery would fully utilize the film area of standard 35 mm frames. Otherwise, wide format imagery would have left the top and bottom of the frame unused, and required cropping these out using masks in the projector:</p><p>Anamorphic lenses typically serve a very different purpose with digital. Since most digital sensors have a higher aspect ratio than 35 mm film, spherical lenses often record sufficiently wide images with minimal to no cropping. Using an anamorphic lens often produces an unnecessarily high aspect ratio, in which case the sides of the image aren’t utilized and horizontal resolution is reduced.</p><p>Other Considerations when using anamorphic with digital</p><p>The main reason to use anamorphic with digital is for its other effects. Lens flare and out of focus backgrounds (“bokeh”) will appear elongated as opposed to circular (unless the lens has a specially-designed ovular iris). Flare may also appear as bluish horizontal or vertical streaks which span the entire frame. Vignetting may appear as an oval, although this unique shape can be emulated in post-production.</p><p>Depth of field is also affected. Although anamorphic and spherical lenses technically have the same depth of field, in practice you have to use a longer focal length with anamorphic in order to achieve the same angle of view. Therefore, at the same subject magnification, anamorphic lenses produce a shallower, more cinematic depth of field.</p>","appDepth":2,"appParentPermlink":"fk8a6x99x","appParentAuthor":"chuuuckie","musingAppId":"aU2p3C3a8N","musingAppVersion":"1.1","musingPostType":"answer"}" |
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