File:Minolta_Rokkor_250_mm_f5.6_telephoto_lens_(mirror_lens,_reflex_lens_or_catadioptric_lens_principle)_(without_background).jpg
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Minolta_Rokkor_250_mm_f5.6_telephoto_lens_(mirror_lens,_reflex_lens_or_catadioptric_lens_principle)_(without_background).jpg (410 × 470 pixels, file size: 106 KB, MIME type: image/jpeg)
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DescriptionMinolta Rokkor 250 mm f5.6 telephoto lens (mirror lens, reflex lens or catadioptric lens principle) (without background).jpg |
Deutsch: Minolta Rokkor Teleobjektiv für analoge Spiegelreflexkameras mit Minolta-SR-Bajonett. Es ist ein im Fotografiebereich sehr seltenes Spiegellinsenobjektiv (katadioptrisches System), hat eine feste Brennweite von 250 mm und bauartbedingt einen festen Blendenwert von 5,6. English: Minolta telephoto lens with 250 mm focal length and a fixed aperture value of 5.6 for analog SLR cameras with the Minolta SR bajonet. This is a very rare variant of an optical lens for photo cameras, being built as a mirror lens (also: catadioptric lens (CAT) or reflex lens) which is a typical type of telescope in astronomy. |
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Source | Own work | ||||||
Author | User Smial on de.wikipedia | ||||||
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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: cropped to mirror lens from much larger image, removed background, white balance, removed lamp reflections on front lens. The original can be viewed here: Minolta Rokkor Teleobjektive.jpg: . Modifications made by Pittigrilli.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 04:48, 13 February 2023 | 410 × 470 (106 KB) | Pittigrilli | removed reflections of lamps | |
21:36, 12 February 2023 | 410 × 470 (108 KB) | Pittigrilli | removed background, colours | ||
21:35, 12 February 2023 | 455 × 510 (64 KB) | Pittigrilli | File:Minolta Rokkor 250 mm f5.6 telephoto lens (mirror lens, reflex lens or catadioptric lens principle).jpg cropped using CropTool with precise mode. |
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JPEG file comment | LEAD Technologies Inc. V1.01 |
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