Theoretical Resolution Insights for Solar Imaging with Bayer Matrix and Webcam Analysis

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This article explores the theoretical resolution of solar imaging using a Bayer matrix chip with various aperture sizes at 656nm. For an 80mm diameter aperture, the theoretical resolution is 1.73 arcseconds, leading to a maximum sampling resolution of 0.87 arcseconds, while the pixel size of a typical webcam provides a resolution of 2.06 arcseconds per pixel. Comparatively, a 50mm aperture achieves 2.76 arcseconds, with maximum sampling at 1.38 arcseconds. The article also discusses performance using DMK monochrome video cameras and a 2.5x power mate for improved resolution.

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Apr 28, 2026

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Theoretical Resolution Insights for Solar Imaging with Bayer Matrix and Webcam Analysis

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Solar

Bayer matrix Imaging chip Theoretical resolution for 80 mm dia aperture at 656nm = 1.73 arcsec For maximum sampling 1.73/2 = 0.87 arcsec Webcam pixel size = 5um Giving a resolution of 2.06 arcsec per pixel. This is not the whole story.

Theoretical resolution for 50 mm dia aperture at 656nm = 2.76 arcsec For maximum sampling 2.68/2 = 1.38 arcsec For comparison the PST has a theoretical resolution of 3.45 arcsec DMK monochrome video camera 1280 x 960 Pixel size = 4.65um Giving a resolution of 1.92 arcsec per pixel. However, using a 2.5x power mate gives a pixel resolution of 0.77 arcsec @ 656 nm. This is ideally suited for an 80mm f10 scope.