The accuracy of the 58 mm prism is <5 arc sec and is silver coated to protect against moisture, fogging and severe climatic conditions. The prism canister, holder, yoke and locking target assembly are manufactured in the United States. The rugged Polypropylene prism canister with brass M20 thread is highly impact resistant. The dual sided targets have -30 mm and 0 mm offsets. The target and yoke assembly are precision manufactured from high quality aluminum, stainless steel and brass. It has an easy to use twist knob tilting target lock. This assembly fits standard 5/8 x 11 prism poles, adapters, etc. The height of the tilting axis is 115 mm. Weighs 1.5 lb (0.68 kg) |