Nikon dedicated RMC Tokina 2x teleconverter F moun

The Tokina RMC 2x Doubler is a manual focus teleconverter designed for Nikon F-mount cameras, designed to double the focal length of a lens while maintaining a relatively compact design. The "RMC" (Rainbow Multi-Coating) indicates it uses multi-coated optics to reduce flare and increase contrast.Key Features & Compatibility:Mount: Dedicated to the Nikon F-mount (AI-type) manual focus system.Compatibility: Primarily designed for manual focus AI-type Nikon lenses.Magnification: \(2\times\) (e.g., a \(100\text{mm}\) lens becomes \(200\text{mm}\)).Aperture: Reduces the maximum aperture of the lens by two stops (e.g., \(f/2.8\) becomes \(f/5.6\)).Optical Construction: Often features a 7-element design aimed at reducing aberration, though generally designed for legacy manual glass.Design: Compact and lightweight, often used for vintage, manual, or adapted mirrorless setups.This teleconverter is commonly used with vintage Nikon film cameras (like the F3, FE2, F2) or adapted to modern digital mirrorless cameras.