2020年1月10日 · The AF version appeared in at least four badgings, Cosina, Pentax, Vivitar and Promaster. Weight: 208 g Filter mount: 49mm Aperture: F3,5 - F22, A Iris: Close Focus: 0.43 m Focus throw: PKA or KAF mount. Max Macro 1:2, 1:1 with Achromat ("Matched Macro Adaptor" shipped in Kit - see pic) Detailed review by Optical Limits (photozone.de).

2020年6月21日 · Cosina MC 20mm F3.8 reviews and specifications. Auto aperture, manual focus. This is a Cosina Prime lens.

2023年2月6日 · Cosina had manufactured lenses for other makers in the past. Optically, according to some users, this Cosina 24/2.8 was also branded Carl Zeiss Jena II 24mm/f2.8. It is multi-coated, although not as prestigious as Pentax SMC in performance. I've had an A24 2.8, which gives better contrast. Some specs can be found here. I've seen this lens ...

2022年6月8日 · This Cosina/Petri badged lens was also sold as a "Miranda 50mm F2.0" in K-mount by the UK Chain Store called Dixons along with the PK-mount Miranda MS1 version of the Cosina camera. Any link with the old 1960s Miranda Sensorex/Soligar 50mm F1.9 or F2.8 lenses of cameras is just the name which was bought and reused after the Original company closed.

2018年3月19日 · Manufacturer: Cosina Focal length: 100 - 400 mm Maximum aperture: f/4.5 - 6.7 Angle of view: 24.4 - 6.2 o Closest focusing distance: 2 m Maximum magnification: 1:4 Minimum aperture: 32 Auto focus: Yes Manual Focus: Yes Lens Construction: 12 elements / 9 groups Filter diameter: 67 mm Macro: No Dimensions: 162 x 74.2 mm Weight: 740 g

2019年1月12日 · Cosina AF 19-35mm F/3.5-4.5 MC is a very good fullframe wide-angle zoom lens. It exhibits excellent sharpness at the center of the frame at all focal lengths and very good at the edges of full frame with closing of the aperture by several stops.

2024年6月10日 · Cosina MC MACRO 28mm F2.8 reviews and specifications. Filter diameter: 49mm No hood K-A mount F2 - F22, 5 blades MC - multicoated MACRO - minimum foc.

2023年9月4日 · Auto Focus 100mm F3.5 Macro , this is the later AF version of the Cosina 100mm f3.5. With 1:1 Macro Adaptor Lens Construction: 5 Elements / 4 Groups Angle of View: 25 Degrees Aperture: F3.5 to F22 Min Focus Distance: 1.4 Feet Maximum Magnification: 1:2 (1:1 with adapter) Lens coating: Multicoated Length: 73mm Diameter: 68mm Weight: 7.3oz Lens ...

2010年2月17日 · The current relationship between Cosina and Zeiss did not exist at that time. The Vivitar cameras made in the early 1980s were made by Cosina to Vivitar specifications, though it may be that the kit lens is a Cosina rather than a Vivitar design. Steve

2024年8月19日 · This is the Vivitar 28mm F2.8 version made by Cosina - it has 5 aperture blades. I paid £8 GBP (about $10 USD) on UK eBay in January 2024; It is a 1980s-90s design which perfectly fits the design spec of taking 6x4 to 10x8 inch prints or 35mm transparencies for a projector slide show by amateur photographers.