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New: Restyled (not a designation found on the lens), aesthetic changes (such lenses were labelled "New" or "Neu" or "(N)" on the box and in the documentation by Minolta, but not specifically labelled on the lens itself). SSM "SuperSonic Motor", silent in-lens ultrasonic motor used on some lenses. Requires 8 lens contacts; lenses with only 5 ...
28–80mm f/4–5.6. 28–105mm f/3.5–4.5. 35–200mm f/4.5–5.6. 80–200mm f/4.5–5.6. 100–300mm f/4.5–5.6. Later, with the introduction of the Maxxum/Alpha 7 and its support for distance-encoded HS (D) flashes in 2001, Minolta began fitting all lenses with the three additional contacts, repurposed to support the Advance Distance ...
Contact lenses. to correct refractive errors of the eye; a little invasive. Phoropter. used in refraction testing. Tonometers. used to determine the intraoccular pressure (IOP) - useful in glaucoma; video link for various types of tonometers. Speculum: to keep the eyes open during any operation. Universal eye speculum.
Nikon G, Sigma/Tamron/Tokina: no designation: The lens is not fitted with an aperture ring, and is thus incompatible with most old Nikon film SLR bodies. [1] All G-type lenses are also D-type. All IF: The lens utilises an internal focus mechanism, which does not extend or rotate the front optical element.
The optical microscope, also referred to as a light microscope, is a type of microscopethat commonly uses visible lightand a system of lensesto generate magnified images of small objects. Optical microscopes are the oldest design of microscope and were possibly invented in their present compound form in the 17th century.
A collection of lenses a DSLR owner might have: 50mm F1.4, 17-40mm F4, 100mm F2.8 Macro, 24-70mm F2.8, 70-200mm F2.8. This article details lenses for single-lens reflex and digital single-lens reflex cameras (SLRs and DSLRs respectively). The emphasis is on modern lenses for 35 mm film SLRs and for "full-frame" DSLRs with sensor sizes less than ...
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