Bower 500mm f/8.0 Manual Focus Telephoto Lens for Pentax Screw Mount (M42)

BH #BO5008KPSU (B&H Kit)
Bower
Bower 500mm f/8.0 Manual Focus Telephoto Lens for Pentax Screw Mount (M42)
Key Features
  • Mirror Lens
  • Just 3.0" Wide & 3.5" Long
  • Accepts 30.5mm Filters
The Bower 500mm f/8.0 Manual Focus Lens is a catadioptric mirror T-mount lens, precision manufactured in South Korea.  When combined with the T-mount, this mirror lens mounts to any M42/Pentax screw mount series camera.  However, the fixed f/8 aperture is not communicated to the camera body.  As such, you can use the lens in "M" manual exposure mode only.

Despite this lens' long 500mm focal length, it has a compact 3 x 3.5" size and weighs under 1 pound, making it a bit easier to handle than normal 500mm refractor lenses (it should be used with a tripod or monopod in any case).  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).

In Stock
$127.99

Bower 500mm f/8.0 Manual Focus Telephoto Lens for Pentax Screw Mount (M42)

Bower 500mm f/8.0 Mirror Lens Overview

The Bower 500mm f/8.0 Manual Focus Lens is a catadioptric mirror T-mount lens, precision manufactured in South Korea.  When combined with the T-mount, this mirror lens mounts to any M42/Pentax screw mount series camera.  However, the fixed f/8 aperture is not communicated to the camera body.  As such, you can use the lens in "M" manual exposure mode only.

Despite this lens' long 500mm focal length, it has a compact 3 x 3.5" size and weighs under 1 pound, making it a bit easier to handle than normal 500mm refractor lenses (it should be used with a tripod or monopod in any case).  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).

Bower 500mm f/8.0 Manual Focus Telephoto T-Mount Lens

The Bower 500mm f/8.0 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/8 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.

Despite this lens' long 500mm focal length, it has a compact 3 x 3.5" size and weighs under 1 pound, making it a bit easier to handle than normal 500mm refractor lenses (it should be used with a tripod or monopod in any case).  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/8 mirror lens in T-mount
Multicoated optics
Distinct out-of-focus highlight characterization
Excellent close focusing capacity
Accepts 30.5mm filters at rear of lens barrel
Made in South Korea
UPC: 636980500072

Bower T-Mount to Pentax K Mount Adapter

The Bower T-Mount to Pentax K Mount Adapter allows you to mount T-mount lenses, telescopes, microscopes, and other optics to your Pentax K-mount camera body. When in use, automatic camera functions, such as autofocus and exposure control, will not be available and must be set manually.

UPC: 636980702759

Bower 500mm f/8.0 Manual Focus Telephoto T-Mount Lens Specs

Adapter
Focal Length500mm
Maximum Aperturef/8
Minimum Aperturef/8
Lens MountT-Mount
Format CompatibilityFull-Frame
Angle of View
Minimum Focus Distance5.7' / 1.74 m
Optical Design7 Elements in 6 Groups
Focus TypeManual Focus
Image StabilizationNone
Filter Size30.5 mm (Rear)
Dimensions (ø x L)3.03 x 3.44" / 7.7 x 8.74 cm
Weight11.64 oz / 330 g
Packaging Info
Package Weight1.055 lb
Box Dimensions (LxWxH)6.4 x 4 x 3.9"

Bower T-Mount to Pentax K Mount Adapter Specs

Adapter
Camera MountPentax K
Lens MountT-Mount
Packaging Info
Package Weight0.095 lb
Box Dimensions (LxWxH)2.85 x 2.8 x 1"
See any errors on this page? Let us know

YOUR RECENTLY VIEWED ITEMS

Browsing History
036

Close

Close

Close