Comment by foldr
6 hours ago
> And, the combination of wide-angle-view and super-high-aperture would literally require light to pass through the metal of the camera in order to reach the sensor:
This isn’t necessarily true when using a retrofocus wideangle design (as most modern ultrawide lenses do).
To be honest, if that's not the part where physics fail, it's going to be the actual production of the lenses... Either way, there's no such lens available to the market.
Doesn’t that remove the narrow depth of focus the author is going for?
No. Depth of field is determined by aperture and focal length. Whether or not a lens has a retrofocus design isn’t relevant.
And sensor size. The bigger the sensor the shallower the DOF and better the perceived quality of blur at given f-stop.
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Did you read the article?
> Now, here's the kicker: the bigger the focusing lens is, the larger the cone of light rays is, meaning the the out of focus parts of the image will be more out of focus
From the page [0] it takes the depth of focus image from:
> [Depth of focus] differs from depth of field because it describes the distance over which light is focused at the camera's sensor, as opposed to the subject
[0] https://www.cambridgeincolour.com/tutorials/depth-of-field.h...
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