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Why are aspect ratios for digital and analog photography different? (4:3 vs. 3:2 respectively.)? |
Why are aspect ratios for digital and analog photography different? (4:3 vs. 3:2 respectively.)? Digital cameras got started with the idea that the pics would primarily be displayed on computer monitors. At the time 4:3 was the only aspect ratio for computer monitors (and for TV's). Apparently nobody bothered the ask the 35mm camera engineers... 35mm cameras were off in their own world with 3:2. Other format cameras exist with different aspect ratios, but they never got widespread popularity with consumers, like 35mm did. Now the 4:3 digitals are replacing 35mm for consumers, but we still have to wrestle with the change in aspects. When we get pics professionally printed they automatically cut 1/4 in. off the top and bottom of the 4:3 digital image to make a 6x4 in. print. What if you don't want to lose the top and bottom? Print them yourself, I guess. But the 6x4.5 prints don't fit in photo albums! Many digicams give you an option to record in 3:2, so at least you are framing what you will get printed. That seems to be the best you can do right now. Enjoy... many of the digital sensors are APS sized or smaller. If you want full 35mm aspect ratio then by a Canon 5D or 1Ds Mark II. Both have full sized sensors. A frame of 35mm film is 35mm wide by 24mm high (without the sprocket holes.) This is roughly 3:2. The sensors in all digital compact cameras and dSLR cameras that I know of also have a 3:2 ratio. My Nikon D200 dSLR has 3872 x 2592 pixels = 3:2 and the sensor measures 23.6 x 15.8mm = 3:2 If you're used to 4:3, something else is going on. Probably the image is cropped when making prints. |
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