Web12 aug. 2009 · First, from the optical resolution of the objective: Res=0.51*488/1.25=199 nm. If Nyquist sampling frequency of 2 is used, 199/2=99.5 nm; If sampling frequency of 1.5 used, 199/1.5=133 nm (it is said that confocal can use sampling rate lower than 2 because of its low background). So the required pixel size is about 100-133 nm. WebIt is not a measurement of the actual length of a lens, but a calculation of an optical distance from the point where light rays converge to form a sharp image of an object to the digital sensor or 35mm film at the focal plane in …
zoom - Why is my microscope camera so zoomed in …
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Microscopes - National Geographic Society
Web173k 10 203 546. Add a comment. 2. The term "zoom" is unfortunately absolutely meaningless - it is just the ratio of the longest and shortest focal length. I.e. A 17mm to 50mm lens would be roughly 3x zoom. (50/17 = 2.94) However a 70-200mm lens would also be a roughly 3x zoom. (200/70 = 2.86) Share. Improve this answer. WebAPEXEL brand standard products around 80 SKU, which stock available and can be sent out in 3-5 days after your confirmation. TAILORED SOLUTIONS We provide a variety of optical lens solutions, including industrial lens, IoT … Web11 jun. 2024 · Even though 200 nanometers is considered the optimal resolution for optical microscopes, higher resolutions can be obtained using fluorescence microscopy. When combined with a laser light source, focal plane resolution of 15-20 nanometers can … curly bob haircuts for women