![]() ![]() In practice, it is easier to talk in terms of equivalent focal lengths, EFL. When photographing the same subject from the same distance with the same focal length, crop camera sensors gives a smaller FoV. For this article though, all you need to know is in the diagram below. You can find a detailed discussion of depth of field and field of view here. ![]() In order to avoid confusion when illustrating how the sensor size will affect your image, we will put ourselves in specific conditions, but in all cases we will assume that the focal length and aperture will remain the same for all cases. will affect your images in several ways, the most obvious of which is the field of view. The camera sensor size, together with the lens focal length and aperture, distance to subject, etc. What You Need to Know About Field of View and Depth of Field Sensor size comparison between the most common types of digital sensors and the 35 mm full frame sensor. The scheme below allows you to visualise the meaning of the crop factor by comparing the areas of the different sensor types. Nikon, Pentax, Sony and Sigma APS-C: CP = 1.5.Here is the crop factor for the most common sensor types: The CP is the ratio between the size of a full frame sensor (length and width) and that of the sensor under discussion. Rather than using the sensor physical dimensions, when discussing and comparing the different sensor types a more commonly used parameter is the so called crop factor, CP, which is much easier to remember. Historically, the camera sensor size of reference is that of the old 35mm film. Buy from Unavailable Aps-C Vs Full Frame for Astrophotography: Physical Size of Common Sensor Types
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