![]() Michael Perini replies to Bruce: "You are correct that pixel pitch is a linear value and determines resolution. I will admit that I only understand such differences in terms of visual results, and I have no data bank in terms of visual results when it comes to long teles, never have had. Which still leaves me on the hot seat, because this is my day job. mm 2, should stick to whatever it is they do for their day job." (This sets the smallest detail the sensor can record.) Anyone latching on to area, e.g. It establishes the spatial frequency, from which the Nyquist frequency of the sensor. So there's one vote, at least, for a smaller sensor for distant small subjects like birds! Heh.īruce Rubenstein: "Pixel pitch is linear value, such as pixels/mm. But I think if I were photographing birds in trees I'd rather have a smaller-sensor camera.Įliot Porter, the great nature photographer, shot mostly with an 8x10 but did his bird photography with 35mm. I don't know if this gets us any closer to the question of whether a smaller sensor overcomes its deficiencies to be better for long-telephoto work or not because certainly the greater pixel density also comes with disadvantages as well as advantages. But most of the answers are running in the range of 76–80 MP. Mike replies: Lots of different answers, no doubt because people adopt somewhat different premises rather than because of any deficiency in their math. 11X14 ASPECT RATIO CALCULATOR FULLWith the same pixel density (pixels per square millimeter), the full frame sensor would then be 76.8 MP (3.84 times 20MP)." Dividing 864 by 224.9 shows that the bigger chip is 3.84 times the area of the smaller chip. This provides 224.9 square millimeters of area. A Micro 4/3 sensor has dimensions of 17.3x13mm. Multiplying these numbers together provides a sensor area of 864 square millimeters. A full-frame chip has dimensions of 36x24mm. William Schneider: "It boils down to a problem of comparing sensor areas between the two chips. ( To see all the comments, click on the "Comments" link below.) Give Mike a “Like” or Buy yourself something nice Links in this post may be to our affiliates sales through affiliate links may benefit this site. Original contents copyright 2017 by Michael C. A quick question for the non-math-challenged amongst ye: Re Gary's question in the Comments to the "Telephoto Reach" post, how many pixels would a full-frame sensor have to have to have the same pixel density as a 20-MP Micro 4/3 sensor? ![]()
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