Bower

Bower T-Mount 500mm f/6.3 Mirror Lens with Case, Requires T-Mount.

SKU: BOW50063 MFR: SLY50063
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$138.00 $6 per week
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About the Bower 500mm F/6.3



Bower T-Mount 500mm f/6.3 Mirror Lens with Case, Requires T-Mount
The Bower T-Mount 500mm f/6.3 Mirror Lens with Case is a catadioptric mirror T-mount lens. When combined with the T-mount to fit your camera system, this mirror lens mounts to camera and works on both "35mm/Full Frame Sensors" 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 telephoto lens has a broad diameter and stocky build, making it easier to handle than a normal refractor lens. A White lens barrel helps prevent heat retention. It also has a much different rendering of out of focus areas than a normal lens, where highlights will be doughnut-shaped rings with more saturation and contrast on the edge of the ring than on the center. This T-Mount 500mm mirror lens is offered with free shipping, in new condition only!

Product Highlights

  • 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
  • Ideal for astrophotography use when mounted to a motorized equatorial telescope mount



From the Manufacturer

The Bower 500mm f/6.3 Manual Focus Lens is a catadioptric mirror T-mount lens. 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. 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.

Bower 500mm F/6.3 Includes

  • Bower Case
  • Front Cap
  • Bower Warranty

Bower 500mm F/6.3 Features

  • 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)

Bower 500mm F/6.3 Specifications

Filter Size 95mm front, 34mm rear
f/Stop Range f/6.3 (fixed)
Minimum Focus Distance 6.6' (2.0 m)
Angle of View 4.1° x 2.7° (W x H)
2.6° x 1.7° (W x H) w/ APS-C (15 x 22mm) cameras
Groups/Elements 6/7
Length 4.7" (120mm)
Maximum Diameter 3.9" (98mm)
Weight 1.55 lbs (705g)
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