United States
500mm f/6.3 Manual Focus Telephoto T-Mount Lens Product Image

500mm f/6.3 Manual Focus Telephoto T-Mount Lens


Product Description

The Bower 500mm f/6.3 Manual Focus Lens is a catadioptric mirror T-mount lens, precision manufactured in South Korea.

When combined with the T-mount to fit your camera system, this mirror lens mounts to camera and works on both "full frame" cameras as well as the "APS-C" style digital SLR cameras.  T-Mounts are available for all the digital SLR systems, as well as for C-mount systems.  However, in every case the fixed f/6.3 aperture is not communicated to the camera body.  As such, you can use the lens in "M" manual exposure mode or "A" aperture-priority mode only.

This lens has a broad diameter and stocky build, making it a bit easier to handle than a normal refractor lens.  It also has a much different rendering of out of focus areas than a normal lens; highlights will be doughnut-shaped rings with more saturation and contrast on the edge of the ring than on the center.

This lens is an ideal candidate for astrophotography use when mounted to a Vixen GP2 Photo Guider (or other motorized equatorial telescope mount).

Focal Length 500mm
Maximum Aperture f/6.3
Minimum Aperture f/6.3
Pinhole Diameter
Lens Mount T-Mount
Lens Mount
Lens Mount
Format Compatibility Full-Frame
Angle of View 5�
Area of Coverage
Tilt-Shift
Minimum Focus Distance 6.1' / 1.86 m
Maximum Magnification
Macro Reproduction Ratio
Optical Design 7 Elements in 6 Groups
Diaphragm Blades
Focus Type Manual Focus
Image Stabilization None
Leaf Shutter
Tripod Collar
Filter Size 95 mm (Front)
34 mm (Rear)
Dimensions (� x L) 3.86 x 4.69" / 98.04 x 119.13 mm
Length at Maximum Extension
Weight 1.43 lb / 650 g
Change Your Country