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While f/64 sounds like a small aperture, it can be worth remembering that it was on large format cameras. A small sensor like on iPhone 6 is wide open correspon
by Mankaninen 7y ago
While f/64 sounds like a small aperture, it can be worth remembering that it was on large format cameras. A small sensor like on iPhone 6 is wide open corresponding to depth matching f/113!
(iPhone6 is f/2.2, crop is 7.21, 8"x10" camera is crop 0.14. 7.21/0.14*2.2 = f/113)
- klodolph 7y agoWorth noting that angular resolution and DOF/defocus is related to absolute aperture size, not f-number, so you can also just plug in the values for "f" to compare. The iPhone 6 has f=4.15mm, a lens with similar FOV on an 8x10 has f=200mm. 200mm / 64 = 3.1mm -> the size of an f/64 aperture on a 200mm lens. 4.15mm / 2.2 = 1.9mm -> the size of on f/2.2 aperture on the iPhone 6. Although the 8x10 will often have less defocus due to movements (photographer control of focal plane).
- m463 7y agoIt still give me the mental image of a good lens with a meticulously crafted iris that can close way way down.