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

You Pay: $135.00
Product Highlights
  • Mirror Lens
  • Just 3.9" Wide & 4.7" Long
  • Accepts 95mm or 34mm Filters
  • Requires Camera-Specific T-Mount

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
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
Environmental
Physical
Filter Thread Front:95 mm
Rear:34 mm
Dimensions (DxL) Approx. 3.86 x 4.69" (98 x 119 mm)
Weight 1.43 lb (650 g)
Bower 500mm f/6.3 Manual Focus Telephoto T-Mount Lens
  • Front Cap
  • 1-Year Warranty
  • T Mounts

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    Required item: Please be sure to purchase the T-Mount adapter that fits the camera you will be using.

    Vello -  Lens Mount Adapter - T Mount Lens to Canon EOS Camera
    • You Pay: $8.75
     

    Filters & Filter Kits

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    Bower -  95mm Digital HD UV Filter
    • You Pay: $24.00
    Usually ships in 7-14 business days i Estimated arrival at B&H is 7-14 business days. An authorization for this product will be processed upon placing the order. You will be charged for this item at the time of Shipment.
     

    Hoods & Covers

    Flex Lens Shade -  Flex Lens Shade
    • You Pay: $39.95
     

    Cases & Wraps

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    Pearstone -  Onyx 50 Lens Case
    • You Pay: $16.95
     
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