Mamiya Medium Format Lenses | Mamiya 1.4X Rz Teleconverter

This Tele-Converter Is Optically Designed To Provide The Best Possible Results In Use With The Superior Z Series Lenses. It Is Fully Compatible With Ae Prism Finder And Ae Magnifying Hood Providing Automatic Exposure. It Provides An Effective Focal Length Extension Of 1.4X, And Is Highly Recommended For The Lenses Shown In The Following Chart.Best Suited Lens New Effective Focal Length And Aperture90Mm F/3.5 127Mm F/5110Mm F/2.8 156Mm F/4127Mm F/3.8 180Mm F/5.4140Mm F/4.5 198Mm F/6.4180Mm F/4.5 255Mm F/6.4100~200Mm F/4.5 141~283Mm F/7.4When Used With Any Other Lens, Optimum Performance Will Be Achieved By Stopping Down By 1 Or 2 Stops From Maximum Aperture. Vignetting Will Occur With 75Mm Shift Lens.