Topcor 35mm f2.8, manufactured by Tokyo Kogaku. A symmetrical optical design with 4 groups and 6 elements. Released in 1955 as an interchangeable lens for the Leotax.

Lightweight barrel design made of aluminum and brass. Actual measured weight is 154g. Feet scale. The white anodized finish gives off a distinctive hue. Products from Tokyo Kogaku of this era are exceptionally well made, and this lens is no exception with its admirable craftsmanship.

Although not included with this item, the dedicated brilliant finder that was originally sold as a set with the lens is said to be the largest ever made for a 35mm camera. With its 1:1 magnification, it allows the user to keep both eyes open while maintaining the view, and its humorous appearance has made it popular even as a standalone accessory. It is also nicknamed the ghost finder. When mounted on a camera, it creates a very unique look.

There is slight plating wear below the infinity lock pin, to the left of the minimum focusing distance mark of 3.5 feet, but there are no dings or dents and the overall exterior is in very clean condition. Fully overhauled in September 2025, with careful servicing resulting in very smooth operation of the aperture, helicoid, and other moving parts. The glass shows only minor coating deterioration, with no noticeable cleaning marks or haze, leaving it bright and clear.

Shooting results were also excellent. The lens beautifully renders delicate fine lines while offering a calm, refined character. Stopping down produces images that are impressively sharp and powerful. Please see the sample images in our gallery.

Comes with the original aluminum front cap.