camera sensor size and image resolution
Oct 13, 2017 13:42:58 #
BebuLamar wrote:
A projected slide is slide at its best. A projected digital image is digital imaging at its worst. He would be more happy if he try to print a 20x30" print and compare.
Exactly. This is comparison of projectors, not film vs sensor.
Oct 13, 2017 13:50:19 #
If you just want to understand all the background stuff, then this is an interesting discussion. Even with something technical like this you are getting lots of opinions. I think the only thing that really counts is final use, and if you have clients, what are their demands, keeping in mind that they often don't know what they are talking about. Something that has reared its ugly head here is DPI and PPI and ultimate picture size when printing. If your interest in this has to do with making prints I would suggest you don't worry about any of this. My Epson P-800 is set on DPI 320 all the time because that's what Epson recommends. PPI, up sampling and down sampling makes no difference. Lightroom and the printer utility doesn't even ask you about any of this. There used to be programs to do all this sampling and adjusting but it now happens automatically in Lightroom. You don't even need to think about it. If you want to make a 17x23 inch print from your 20mp camera just put the dimensions into Lightroom, load the right paper and profile and hit the print button. If it looks good, your done. If it doesn't, make some new decisions and go from there. Megapixels and sensor size take a back seat to exposure and sharpness. Get it sharp, nail the exposure and you can pretty much do anything with the file from any modern digital camera and each new camera just gets better and better.
kbk wrote:
does the sensor size (apc vs. full 35mm) affect th... (show quote)
Oct 14, 2017 02:51:17 #
wdross
Loc: Castle Rock, Colorado
kbk wrote:
i think you are missing my real question. the dis... (show quote)
Two items can affect projection perception.
Film is made up of dots of dye. Digital images are technically made up of stacked color tiles. If one "pixel peeks" film, thr image just becomes an indistinguishable bunch of dots. Pixel peek a digital image and one starts to see the actual tiles. And projection to a screen is designed to enlarge an image towards "pixel peeking" size. As one approaches that size of viewing, the "dot" image (rounded) will be perceived as a better image than the "tile" image (square).
Next is dynamic range or contrast of the images. As one UHH member mentioned, the medium format sensor usually has a high native dynamic range (14, 15) than a FF camera (8, 9). That means when projected, the photo with the most contrast projects the most "snap" for the projection screen.
Although any and all 16mp cameras will resolve the same, they will not project the same.
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