Nikon reveals a lens that captures wide and telephoto images simultaneously

Re:Nikon reveals a lens that captures wide and telephoto ima... by tobyhinloopen on Monday December 30, 2024 @04:27AM (#42547871)

I think it does, yes. Cropping 25% of the center of a 35mm F/2.0, you'd get the equivalent of a 70mm F/4.0, but with only 25% of the pixels obviously.

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Re:Nikon reveals a lens that captures wide and telephoto ima... by GiovanniP on Monday December 30, 2024 @04:53AM (#42547977)

I expect depth of focus to be different.

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Re:Nikon reveals a lens that captures wide and telephoto ima... by Kubuxu on Monday December 30, 2024 @05:15AM (#42548049)

Yes, depth of focus will be larger, as signified by the larger f-number.

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Re:Nikon reveals a lens that captures wide and telephoto ima... by tobyhinloopen on Monday December 30, 2024 @09:08AM (#42549372)

It will not, I specifically included the F-stops for that reason.

The depth of field is determined by the focus distance and the aperture of the lens. Both remain unchanged.

Note that 35mm F/2.0 is the same aperture as 70mm F/4.0. Both lenses have an aperture of 17.5mm. (35/2.0 == 70/4.0)

You can easily verify this with your favorite zoom lens. If you have an 24-70 F/2.8 available to you, you can verify by taking 2 pictures; one at 35mm F/2.8 and one at 70mm F/5.6. Crop the 35mm one to 25% area (half the width, half the height). Render both images to the same size (print, fill screen, whatever) and see for yourself.

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