Samyang 500mm F6.3 DX

Description

A light and compact lens with a big zoom.

This is a 500 mm mirror reflex manual focus lens. It covers the 24x36mm full-frame format. It comes with a T-mount, so a T-mount to K-mount adapter is required in order to mount the lens on a Pentax K-mount camera.

The lens aperture is a fixed F6.3, it has no aperture control. It can be used in Av and M exposure modes.

The not focus parts gives a donut bookeh.

Lens Mount          Third-party

Aperture Ring      No

Diaphragm            None

Optics                      7 elements, 6 groups

Max. Aperture      F6.3

Min. Aperture       F6.3

Focusing                  Manual

Min. Focus              186 cm

Filter Size                95 mm (Rear: 34 mm)

Weather Sealing   No

Diam x Length       98×120 mm (3.86×4.70 in.)

Weight                      705 g (24.9 oz.)

Note:  A T-mount is required to fit on the body