Difference between revisions of "Crop factor"
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Since the year 2000 the big camera makers [[Nikon]], [[Canon]] and [[Pentax]] continued their [[Autofocus]] [[SLR]] [[camera system]]s mainly based on the [[APS-C]] image sensor format. Since then the '''crop factor''' is mentioned when using old system lenses for [[35mm film]] frame format on such modern cameras with APS-C sensor. The crop factor for APS-C-sized sensors is 1.5. That means that an old 50mm [[normal lens]] lens works like a 1.5×50mm=75mm [[portrait lens]] on the camera with the smaller sensor. [[µ4/3]] [[system cameras]] make a crop factor 2 since the diagonal sensor diameter is just half of the [[35mm film]] image frame. The latter frame size is not described by a crop factor 1 but as "full format", of course meaning somehing else than "full format" [[film plates]]. | Since the year 2000 the big camera makers [[Nikon]], [[Canon]] and [[Pentax]] continued their [[Autofocus]] [[SLR]] [[camera system]]s mainly based on the [[APS-C]] image sensor format. Since then the '''crop factor''' is mentioned when using old system lenses for [[35mm film]] frame format on such modern cameras with APS-C sensor. The crop factor for APS-C-sized sensors is 1.5. That means that an old 50mm [[normal lens]] lens works like a 1.5×50mm=75mm [[portrait lens]] on the camera with the smaller sensor. [[µ4/3]] [[system cameras]] make a crop factor 2 since the diagonal sensor diameter is just half of the [[35mm film]] image frame. The latter frame size is not described by a crop factor 1 but as "full format", of course meaning somehing else than "full format" [[film plates]]. | ||
The higher the crop factor, the more [[depth-of-field]] is gained with good lenses. | The higher the crop factor, the more [[depth-of-field]] is gained with good lenses. | ||
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Latest revision as of 03:24, 22 March 2023
Since the year 2000 the big camera makers Nikon, Canon and Pentax continued their Autofocus SLR camera systems mainly based on the APS-C image sensor format. Since then the crop factor is mentioned when using old system lenses for 35mm film frame format on such modern cameras with APS-C sensor. The crop factor for APS-C-sized sensors is 1.5. That means that an old 50mm normal lens lens works like a 1.5×50mm=75mm portrait lens on the camera with the smaller sensor. µ4/3 system cameras make a crop factor 2 since the diagonal sensor diameter is just half of the 35mm film image frame. The latter frame size is not described by a crop factor 1 but as "full format", of course meaning somehing else than "full format" film plates.
The higher the crop factor, the more depth-of-field is gained with good lenses.
