binocular reticle
Sailorman: To use the range reticle in your binoculars you have to know its Constant, ie., "K" factor. The formula is: Distance = K x (Object Dimension/Reticle Reading), or, K = Dist. x RR/OD. Try this: Place two small objects 2feet apart then move away 100feet. Sight through the binoculars and note how many reticle spaces fit between the two objects, say four for example. "K" would equal 100 x 4 / 2 = 200. Now to determine other distances, just divide 200 by the Reticle Reading and multiply the result by the known Object Dimension. Regards, George
