In addition, Zeiss offered two Proxar closeup lenses, numbers 1 and 2. For more information on the 7.5cm f4 Sonnar for the Tenax II go to: 7.5cm for Tenax II The Contameter framing however is too wide. When the #50 is combined with the 7.5cm Sonnar, it works even better, since that was the focal length the 1341 closeup lenses were designed for. The rangefinder focuser works with the #50 and # 70 lenses. The more widely-available #1341 Contameter can be used on the Tenax II since they both share the same square format and take the same size filters. The #50 is sharp at 21 inches or 530mm.Р”В¬ontameter kit 1341 for the Super Ikonta B The #20 focuses to approximately 10 1/2 inches or 270mm, for a reduction of 1: 6.75. When the 30 and 50 are used, the device mounts using one shoe When the 20 is used, the Contameter uses the opposite shoe which adds additional tilt for the closer distance parallax. The 37mm slip-on closeup lenses for the Tenax II set consist of a #20, a #30 and a #50. It is simple to operate and requires no exposure adjustment, but one is limited to only three distances and setting up requires some time.

In use, you do not focus the lens, but shift the camera back-and-forth until the rangefinder images match. At $65 each in 1930s dollars, these kits were expensive.Р”В®ach lens has a tiny matched focusing lens that fits onto the rangefinder focusing and framing device that goes onto the accessory shoe. Other kits were #1340 for the Contax III, #1341 for the Super Ikonta B, #1342 for the Super Nettal and Nettax and, the mostly commonly still seen, #1343 for the Contax I and Contax II. Each of the smaller Zeiss cameras had a Contameter designed specifically for that camera and its normal lens. The best known was a Contameter, a combination of a rangefinder device and three closeup lenses that came as a kit.

For the Tenax II owner who just had to do closeup photography, Zeiss Ikon offered a few accessories, either the same or modeled on those for the Contax rangefinder cameras.

Nikon s2 rangefinder manual