It's a bird

by Vian Esterhuizen

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7

The 1200mm lens you cite is something of an aberration, since it's built-to-order, not a general-market lens — see Why are some big telephoto lenses so expensive compared to telescopes? and Why are some lenses so expensive?. But the general rule holds true: lenses for DSLRs and most mirrorless cameras are gigantic compared to those in superzoom cameras. ...


2

The Canon lens has focal length of 1200mm and maximum aperture of f/5.6, whereas the Nikon lens has a focal length (at the long end) of 357mm and maximum aperture of f/6.5. So the Canon lens is longer and has a faster aperture, which requires a larger front element, 214mm vs 55mm. This is a substantial difference and makes the Canon larger, heavier and more ...


0

The simple and fast explanation is the lens on Nikon camera is created for sensor with size 1/2.3". Canon lens is created for fullframe camera (24x36 mm sensor). This is very huge difference, crop factor is something like 6. To project the same amount of light on the big sensor you need big lenses inside compared to much small sensor. And with the rise of ...


0

It seems to be real. If you are shooting the moon with a 800mm lens, the image of the moon will be approximatly 8mm in diameter. If Paco used an APSC sensor, the dimensions of the image frame make sense. Thomas Mueller



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