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

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

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

B&H # BO50063 MFR # SLY50063
In Stock

Product Highlights

  • Mirror Lens
  • Just 3.9" Wide & 4.7" Long
  • Accepts 95mm or 34mm Filters
  • White Coloring Prevents Heat Retention
  • Requires Camera-Specific T-Mount
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Price: $199.95

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Bower 500mm f/6.3 overview

  • 1Description

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
UPC: 636980500010
In the Box
Bower 500mm f/6.3 Manual Focus Telephoto T-Mount Lens
  • Front Cap
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    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
    Optical Design 7 Elements in 6 Groups
    Features
    Autofocus No
    Physical
    Filter Thread Front: 95 mm
    Rear: 34 mm
    Dimensions (DxL) 3.86 x 4.69" / 98 x 119 mm
    Weight 1.43 lb / 650 g
    Packaging Info
    Package Weight 1.85 lb
    Box Dimensions (LxWxH) 7.0 x 4.8 x 4.7"

    Bower 500mm f/6.3 reviews

    500mm f/6.3 Manual Focus Telephoto T-Mount Lens is rated 3.8 out of 5 by 34.
    Rated 5 out of 5 by from Excellent for what it was designed for This is a well-made classic mirror lens, compact and lightweight. Manual focus goes much closer than most long focal length lenses, and is fairly easy once you get used to it... although I use M42 mount with a focus-confirm adapter on my Sony A350, and the focus confirm doesn't help much with this lens. It is possible to accidentally unscrew the adapter while focusing. IQ is better than a cheap 400mm f/6.3 conventional lens, but not spectacular. Bokeh are huge doughnuts, which are often a distraction if there are specular highlights in the out of focus regions. In short, if you don't need a compact 500mm, skip this -- it's nice but weird. If you do, this is about as good as they can get and priced very reasonably.
    Date published: 2009-10-19
    Rated 3 out of 5 by from A nice toy I use the 500 with my eos 5 mark 2 as I can increase the iso to 1600 without noise and with an old eos 1n film camera that I usually have in the car. The eos adapter that came with the lens sits quite loose on all of my cameras. There also seems to be a problem with focusing of objects around 15 meters away from the camera. There is no sharpness nowhere to be seen!? The lens lacks the easiness of the old nikon 500 mirror that i use to have but never or less my intention was to have it as a toy for some arty shots. It is great fun to shoot object out of the car or use it for still life images. You can focus on objects 2 meters away. A great fun lens not to be used for shooting bill boards.
    Date published: 2009-09-13
    Rated 4 out of 5 by from Great Wildlife and Bird Portrait lens I need a lens to photograph my bird sightings here in the wild of South Africa. So I chose this inexpensive 500mm f/6.3 Manual Focus Telephoto T-Mount Lens by Bower. It is a great lens but you have to practise and practise getting the focus right especially after having being used to autofocus. The focus is very delicate but once its done, it produces a good photograph. The focussing requires a steady hand but with time, you will get used to it and focus faster.
    Date published: 2011-11-14
    Rated 4 out of 5 by from So Far So Good! I bought this lens because I was on a budget and needed a long-throw lens for taking cross-country pictures. Overall very pleased. Specifics: - It takes in a LOT of light for this focal length. Given that I am in manual using the lens this takes some getting used to. - Pitures are reasonably sharp - whne it's in focus! - It is EXTREMELY sensitive to focus. Forget depth of field, it is nonexistent. Quite a challenge to focus on a moving subject - takes me back to when I took high schol fottball pictures with a manual camera. - Not sure how I feel about out of focus areas. Given the lens' construction they are - weird. I expected this but it takes some getting used to the results.
    Date published: 2011-09-26
    Rated 4 out of 5 by from 500mm f6.3 Mirror lens This is a great lightweight lens for specific purposes, not your everyday shots. Best results when used with a tripod or other form of steady rest as the level of magnification makes camera shake look like the end result of a force 9.8 earthquake. Images are slightly soft, but generally respond well to minor sharpening
    Date published: 2009-09-20
    Rated 4 out of 5 by from Fun The good: looks cool, produces amazing images, close focus gives you something similar ot a macro lens, no autofocus confirmation for Canon EOS The no so good: it sits rather loosely in the T-Mount for EOS (no bearing on anyhting), the focus on infinity ia far beyond infinity which is odd. Need to know to get good results: need light, need a good camera (I use a 7D, on TV = 1/1000 or 1/2000, and autoISO) as you may need good high ISO, a tripod or sure hands, shoot and delete after strategy, and finally very good eye/hand coordination to nail the focus. So, in bright sun light, with a 7D, and steady hands I got fantastic shots of my son windsurfing on the lake; also got beautiful flowers, even some hummingbirds. All that to say that for the price, it is already a fun and useful tool. If it could muster the focus confirmation, this would be perfect. Btw, any 800mm f6.3 not stabilized would require most of the above recommendations.
    Date published: 2011-07-04
    Rated 3 out of 5 by from Good special effects lens I've compared two 500mm mirror lenses- Opteka f/8 and this Bower f/6.3 and went with Bower. Opteka * was unacceptably blurry. This lens is * much better craftsmanship and good enough sharpness. I use it with T2i mostly for video and some pics. Assuming you know how to deal with manual focus lenses - good tripod required, remote shutter release, mirror lock-up, etc., this is a good lens for the money and real life introduction to telephoto shooting. Last thing- doughnut bokeh, I kind of like it!
    Date published: 2011-09-28
    Rated 4 out of 5 by from Just What I Wanted I wanted a 500mm lens that was not heavy and not expensive. That is what I found with this. I does need quite a bit of light, but for the OCCASIONAL time when you need a long lens, this fits the bill both in weight and in $$. If I were using a long lens a lot, I would go for something more 'high end', but this lens is perfect for the once in a while stuff.
    Date published: 2010-07-16
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