Here is a nice new metal T-Mount Adapter for Pentax K Mount camera. Allows the use of T-Mount lenses, telescopes, bellows, and other accessories on your camera.
Many of you that look at this auction will wonder what in the world it is. I will explain.
The T Mount is an older lens mount that has a threaded mount measuring 42mm like the Pentax Screw Mount lenses BUT it is not the same. The T Mount is a fine thread and the Pentax a coarse thread. The T Mount was used for a wide variety of items, not just lenses. Some of the other items with this mount are a slide copier, very long telephoto lenses up to 1000mm, spotting scope, binocular adapter, microscope, bellows units, etc. The lenses are considered "aftermarket" and made by many different manufacturers. One thing I would like to point out about these lenses. They were made at a time when everyone shot slides. As you know slide film is not as forgiving as print film. The lenses had to be good or the results were bad and the lenses would not sell. My own experience with these lenses has found them to be quite capable and very sharp. The lenses are plentiful and inexpensive. You will of course loose the auto focus ability, all T Mount lenses are manual focus. You will also loose the auto and program modes, the only way to use it is metered manual and manually stop down the lens for metering and shooting. If you have priced a long telephoto lens lately, 400mm or longer you will see what a terrific bargain this ring and a T Mount lens will be for your camera. I will guess you can get both for less than $100.00. The most common use for them these days is to mount a 500mm or longer Mirror telephoto lens to a newer Autofocus camera like a Pentax *ist or one of their new Digital SLR cameras. With the cost of new telephoto lenses it pays to buy a nice used T mount lens and this ring. It will fit every Pentax K Mount camera, both auto focus or manual focus cameras ever made. This of course includes the current digital cameras made today.
