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

$179.99
Article number: SLY50063
Availability: On backorder
Delivery time: Ships in 2-3 Days from our Warehouse

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).

Fixed-aperture 500mm f/6.3 mirror lens in T-mount
Multicoated optics
Distinct out-of-focus highlight characterization
White lens barrel helps prevent heat retention
Accepts inexpensive 34mm filters (upon the rear of the lens)
Made in South Korea

Bower 500mm f/6.3 specs

Performance
Focal Length 500mm
Aperture Maximum: f/6.3
Camera Mount Type T-Mount (T-Thread)
Format Compatibility 35mm Film / Full-Frame Digital Sensor
DSLR (APS-C Sensor)
Angle of View
Minimum Focus Distance 6.1'; (1.86 m)
Magnification Not specified by manufacturer
Maximum Reproduction Ratio Not specified by manufacturer
Elements/Groups 7 / 6
Diaphragm Blades Not specified by manufacturer
Features
Image Stabilization No
Autofocus No
Tripod Collar No
Physical
Filter Thread Front: 95 mm
Rear: 34 mm
Dimensions (DxL) Approx. 3.86 x 4.69" (98 x 119 mm)
Weight 1.43 lbs (650 g)
Packaging Info
Package Weight 1.85 lb
Box Dimensions (LxWxH) 7.0 x 4.8 x 4.7"
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