![]() Lens does not transmit information about the focusing distance to the subject, which may interfere with the comfortable working with the flash in automatic TTL modes. В instructions it is indicated that the lens can give sound confirmation of focusing (literally 'sound signaling'), but I could not get such confirmation. Such a trifle could be very easily solved using another microprocessor programming technique. The diaphragm control ring is plastic.ĭespite the fact that the lens is equipped with CPU contacts, it cannot be used to adjust the sound confirmation of focus and, of course, an analog focus traps, which allows you to take a picture only with accurate focusing. There is no latch for the diaphragm ring. It's strange that there is no intermediate value on the ring between F / 3.5 and F / 5.6. Intermediate values can be set only through the camera menu. Ring aperture rotates with clicks, it has F / 3.5, 5.6, 8, 11, 16, 22 values, it is impossible to set an intermediate value between pairs of numbers using the aperture ring. If this is not done, then on a number of cameras, the display will display an error - 'fEE' (ring is not installed aperture) Some cameras having diaphragm rheostatallow you to control the aperture using the ring aperturebut only in metering modes exposure 'M' and 'A'. Important: for the ability to control the value aperture from camera or for automatic installation aperture on modern central control valves, you need to turn the control ring to the value F / 22. The lens options for Samyang 8mm 1: 3.5 UMC FISH-EYE CS II for other systems do not have such contacts. Due to the large depth of field, the focus ring is almost always set to infinity, for a fisheye lens, manual focusing is not a big problem. These contacts are for measuring exposure on younger Nikon cameras and for automatic iris control. Please note that Samyang 8mm 1: 3.5 UMC FISH-EYE CS II NI has microprocessor contacts, but this does not mean that the lens has auto focus. The image of the optical circuit is clickable. The presence of aspherics is indicated on the case with the inscription 'Aspherical', in abbreviated form Samyang calls such elements H-ASP (shown in yellow on the optical diagram). The scheme includes one hybrid aspherical element, which is most likely made by building plastic on a glass base. AE (Auto Exposure) - the ability to automatically exposure with any Nikon CZKįocusing distance in meters and feet, bayonet mount mark (aka mark for aperture ring), hood attachment markįrom F / 3.5 to F / 22, the lens has an aperture control ring on which there are F / 3.5, 5.6, 8, 11, 16, 22ġ0 elements in 7 groups.CS (Cropped Sensor) - The lens is designed for use on cropped cameras with an APS-C sensor.UMC (Ultra Multi Coating) - ultra- multi-coating of objective lenses.NI (for Nikon) - this version of the lens is designed to work with Nikon cameras.H-ASP, Aspherical (hybrid aspherical lens) - the use of special aspherical elements in the optical scheme.IF (Internal Focusing) - internal focusing (or, almost internal, read in the review).FISH-EYE - fisheye lens with uncorrected distortion and wide viewing angle.Samyang 8mm 1: 3.5 UMC FISH-EYE CS II Aspherical NI Samyang 8mm 1: 3.5 UMC FISH-EYE CS II Aspherical NI Main technical characteristics of Samyang 8mm 1: 3.5 UMC FISH-EYE CS II Aspherical NI: Review Instance Name
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