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Joseph Petzval (6 January 1807 – 17 September 1891) was a mathematician, inventor, and physicist best known for his work in optics. He was born in the...25 KB (3,178 words) - 08:04, 27 October 2024
I'. These degrees, named by J. Petzval the numerical orders of the image, are consequently only odd powers; the condition for the formation of an image...58 KB (8,720 words) - 01:47, 17 September 2024
miniatures, was in use for about two years before it was replaced by Petzval's Portrait lens, which gave larger and sharper images. Antoine Claudet had...112 KB (12,836 words) - 04:32, 19 October 2024
D-line (589.2 nm) are f1 and f2, then best correction occurs for the condition: f 1 ⋅ V 1 + f 2 ⋅ V 2 = 0 {\displaystyle f_{1}\cdot V_{1}+f_{2}\cdot...21 KB (2,505 words) - 05:55, 16 August 2024
produced telescope objectives by calculation in 1819, and Josef Maximilian Petzval had done the same for the camera objective in Vienna with Johann Friedrich...35 KB (4,953 words) - 08:15, 20 August 2024
length. Beginning with the KH-4 satellites, these lenses were replaced with Petzval f/3.5 lens. The lenses were panoramic, and moved through a 70° arc perpendicular...81 KB (5,881 words) - 19:41, 23 September 2024
SMC Pentax-FA 85mm f/2.8 SOFT (PK) SMC Pentax 67 Soft 120mm f/3.5 (P67) Petzval portrait (4×5+) Seibold Dreamagon 90mm f/4 Sima Soft Focus 100mm f/2 (T)...38 KB (3,398 words) - 23:29, 20 September 2024
- aberrations contain, will be formed in the plane I′. These degrees, named by J. Petzval (Bericht über die Ergebnisse einiger dioptrischer Untersuchungen, Buda