This sale is for a super rare near mint condition RB67/RZ67 37mm Fisheye LB-A Filter – suitable for the Mamiya RB67 and RZ67 37mm f4.5 fisheye lenses. This is more commonly known as the 81A cloudy weather filter. This filter has really minimal signs of use and perfect glass. Please note that these 40.5mm screw-in filters are specially shaped for use with the fisheye lenses and are not really suitable for use with other lenses.
A UV filter should be fitted to the rear of your fisheye lens as standard; one filter should always be attached to the lens. Simply unscrew the UV filter and replace it with this LB-A filter for use with colour film. Or it will do the same job as a UV filter with black and white film. The instructions for doing this are in the Downloads / RB67 and RZ67 sections on this website. Please note that this sale is just for the LB-A filter; it will be very carefully packed for shipping.
Really hard to find – a super rare item. Grab it while you can!