aperature

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  1. Ado Wolf

    Crop Factor affects a lens' max Aperture?

    I just watched a Youtube video from Tony Northrup, where he claims that the maximum Aperture of a lens is also affected by the crop factor. For example, the 300 mm f4 on Full-frame is equivalent to 450 mm f6 on an APC camera (in 35 mm terms). Is this really true? If so, does it mean that the...
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