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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.
by tobyhinloopen 2y ago
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.
- GiovanniP 2y agoI expect depth of focus to be different.
- Kubuxu 2y agoYes, depth of focus will be larger, as signified by the larger f-number.
- tobyhinloopen 2y agoIt 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.