I use my HD LCD screen and Dell 24" computer screen to edit my photos and to display them. All modern screens are designed for a picture size ratio of 9 to 16, whereas the camera sensor has a 3/4 (or close) size ratio. When viewing photos on LCD screens, you either squash the photo or waist precious display area.
Is therer a plan to change the sensor dimensions (FX and/or DX format) to the 9/16 ratio? Will this cause any optical problems?
>I use my HD LCD screen and Dell 24" computer screen to >edit my photos and to display them. All modern screens are >designed for a picture size ratio of 9 to 16, whereas the >camera sensor has a 3/4 (or close) size ratio. When viewing >photos on LCD screens, you either squash the photo or waist >precious display area. > >Is therer a plan to change the sensor dimensions (FX and/or DX >format) to the 9/16 ratio? Will this cause any optical >problems? > Actually, the camera sensor has an aspect ratio of about 1.5, with the aspect ratio defined as the width divided by the height of the sensor. For the D300, the sensor is 23.6 mm wide and 15.8 mm tall, with an aspect ratio of 1.49, which is real close to 3 to 2.
I don't think there are any plans to change the sensor dimensions to make a 16 X 9 display. Most of the standard photo print sizes (and all of the monitor dispay sizes) force you to crop your photo if you want to fill your display or photo print. For example, a 5 X 7 print (7 inches wide by 5 inches tall) gives you an aspect ratio of 1.4, an 8 X 10 gives you a ratio of 1.25, a 4 X 6 gives you a ratio of 1.5, a 16 X 9 monitor gives you a ratio of 1.78, and a 4 X 3 display gives you a ratio of 1.33.
Since it is impossible to change the change the sensor dimensions without physically replacing the sensor, you are left with cropping your photo to match the aspect ratio of your display. You need not worry about losing pixels by cropping for your display. If you are using a true HD display (1920 X 1080 pixels), even the smallest D300 image size of 2144 X 1424 pixels gives you plenty of room to crop your photo to fill your 16 X 9 display.
To answer the original question, there are no "plans" to standardize monitor, sensor, or film aspect ratios as far as I am aware. There would have to be some sort of consortium established to do this, and as far as I know no such organization exists.
What we are essentially talking about here are legacy issues. 35mm sensor aspect ratios are nearly identical to 35mm film, which btw, was used quite a bit in film making when it was more efficient to use smaller cameras. Print sizes originated from the realm of the press industry. The older television screens followed the early ratio of film at 4:3 and today's 16x9 screens are a compromise; developed to best accommodate new HD programming, films at 1.78:1 and 2.35:1. Computer monitors are somewhat of a mystery to me as I can't find information on why they are built at an odd ratio of 16x10.
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It's always struck me as curious that just as our TV and monitor screens have got wider, there's been an opposite shift in the most popular camera aspect ratio (from 35mm 3:2 to typical compact digital 4:3). Of course most dSLRs are still 3:2, and some compact digitals have widescreen modes, but I'd hazard a guess that that the majority of images being captured today are 4:3. I suppose that 4:3 (which goes all the way back to silent movies, via standard TV) was by far the commonest monitor ratio when digital really started to take off, and (for now at least) has stuck as the 'standard'. But for the reasons Yinnon suggests I wouldn't be surprised to see widescreen sensors gaining in popularity.
There's a trend (in Australia at least) to use the standard "A" sizes (A3, A4 etc) which are close enough to 3:2 ratio, as are standard postcard prints. So really, sensor sizes, print sizes and screen sizes are all over the place and we have to either crop or waste pixels to suit our particular situation. I don't see any sort of standardisation happening.
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