Forgotten in its old age

by Aditya

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The Bayer array doesn't help the issue of diffraction. Blue light has the shortest wavelength and thus suffers less from diffraction than green or red. The highest resolving "conventional" sensor would be sensitive to blue light. But in addition to losing color the images would look a bit weird because blue only contributes about 10% to luminance. If you ...


There is a SAL1855 service manual here Actual link is via "Get Manual" at lower left of page - appears authentic. 40 pages in English and 78 total. Attempting to just copy download address directly failed - they control free downloads to 2 per day and that is probably part of their mechanism for doing so. It would be interesting to see what else they have. ...


In theory there is no limit if the number of collected photons can be arbitrarily large and the object is stationary. The diffraction limit and lens imperfections can be circumvented by deconvolution. The limitations due to the finite pixel size can be dealt with using superresolution methods. Here you make multiple exposures where the camera is shifted such ...


In addition to Michael's excellent answer on diffraction, there are a huge number of other effects which are going to limit your resolution; here's just a brainstormed list: What are you using to record the image? The practical answers here are either film, which has a finite grain size and thus a finite resolution, or a digital sensor, which has a finite ...


Diffraction limits the ability of a lens to resolve adjacent image details separately. Exposure length or combining separate images cannot overcome this. Basically, due to diffraction, a point source of light (i.e. a small image detail) will produce this signal on the sensor: Two details that are just far enough apart to be resolved as separate: But ...


"Fixed" lens can refer either to a lens that is attached to the camera, or a "prime" lens with a fixed (single) focal-length that doesn't zoom. And with large-sensored compact cameras (e.g., X100S, Sony RX-1, etc.), it can be both. Most folks answering questions here, however, would be more likely to call the fixed-focal-length lens a prime lens. The ...

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