Bower 500mm f/8 Manual Focus Telephoto T-Mount Lens

Bower 500mm f/8 Manual Focus Telephoto T-Mount Lens

Bower 500mm f/8 Manual Focus Telephoto T-Mount Lens

B&H # BO5008P MFR # SLY500P

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Bower 500mm f/8.0 overview

  • 1Description

The Bower 500mm f/8 Manual Focus Lens is a classic refractor-style T-mount lens, with an aperture diaphragm in the middle of the lens body to stop down the aperture when necessary.  However, it is assumed that much of the shooting with such a lens will be at its maximum f/8.0 aperture, with a tripod, monopod, or other such support.

When combined with the T-mount to fit your camera system, this super telephoto 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, and even for C-mount systems.  However, in every case the 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' sophisticated achromatic refractor design yields images with pleasing peak contrast and well controlled flare.  It can be used at maximum aperture on a very bright day for some images of moving subjects.

This lens can also be used as a handheld telescope by adding Lumicon's LA1070 adapter along with a 1.25" 45°/60°/90° diagonal and any 1.25" eyepiece, or for astrophotography by using on an SLR mounted to a Vixen GP2 Photo Guider or other motorized equatorial telescope mount.

Achromatic refractor 500mm f/8 lens in T-mount
Multicoated optics
Knurled focus ring to the front of the lens
Accepts 67mm filters on the front of the lens
Fixed tripod collar
Meant for use with monopods, chest supports, or tripods
UPC: 636980500430
In the Box
Bower 500mm f/8 Manual Focus Telephoto T-Mount Lens
  • Front Cap
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Bower 500mm f/8.0 specs

    Focal Length 500mm
    Aperture Maximum: f/8
    Minimum: f/32
    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 33' / 10 m
    Optical Design 4 Elements in 4 Groups
    Autofocus No
    Tripod Collar Yes
    Filter Thread 67 mm
    Dimensions (DxL) 2.76 x 11.73" / 7.01 x 29.79 cm
    Weight 1.41 lb / 640 g
    Packaging Info
    Package Weight 1.85 lb
    Box Dimensions (LxWxH) 14.6 x 3.5 x 3.4"

    Bower 500mm f/8.0 reviews

    500mm f/8 Manual Focus Telephoto T-Mount Lens is rated 4.2 out of 5 by 38.
    Rated 4 out of 5 by from Great lens for a great price! I use this lens on my Canon 70D for nature and wildlife shots and I love it! Sure, it is a T mount, so there is no autofocus, image stabilization, or in camera aperture control, but due to the price and optical quality of this lens that is irrelevant. It also gives you a greater sense of pride in your work because you were the one that got that great shot, not your fancy lens. Anyways, once you get the focus right the clarity of the photos is astounding for the price of the lens! There is also very little aberration and color fringing, and no vignetting. For the more advanced photographer, or even a beginner, I highly recommend this lens!
    Date published: 2015-01-16
    Rated 4 out of 5 by from Good value for money I used this lens with my Nikon D 5000 and Nikon D 90. I tried taking just few photos with tripod. It is better to use a tripod and the camera in manual mode.Use the LCD display of the camera as reference for adjusting the lighting by changing the aperture of the lens.It is easy to focus and gives excellent pictures if light is good.I have also tried few more birds and moon.The screws of the T mount had to be adjusted to mount the lens is a very good product for the price offered.I have links to my photos taken using this Lensone at normal day light and one at low light 1. ...
    Date published: 2011-07-11
    Rated 4 out of 5 by from Great for the price. I bought this lens for bird photography. I was thinking of dropping a grand for the sigma 50-500 but ended up just sticking with this since I wasn't sure if I was something that I would really get into. After getting this lens I didn't expect a whole lot out of it and I didn't get a whole lot. But I got what I paid for and the optics are very sharp. It has a pretty strong construction with an exception to the mount. I have noticed a fair amount of coma when shooting at f/8 but that was to be expected. I generally just bump my iso up to 800, shoot at 1/500th of a second and f/11 isn't so bad from there.
    Date published: 2010-11-08
    Rated 5 out of 5 by from excellent for wildlife I find this lens to be a good wieght, it is easy to point at the moon or birds. It has an easy and accessable focus ring. As an added bonus with this lens you can adjust the apature. It uses a 67mm filter which I acquired through a local business, not B&H .... I also use this lens for stellar pics, pressently there has been light cloud cover, but even still I have acquired some amazing pictures of the moon. This lens is excellent. I did remove the mounting ring, as the lens is not too heavy and I preffer to mount my camera body onto a small tripod for still, or low light pictures. This lens has also captured wild close up images of vultures feeding on a carcus :).
    Date published: 2011-04-15
    Rated 5 out of 5 by from For this price you get a nice lens For this price, 5 stars. A very nice, surprisingly well made and solid lens that will take me some time to learn how to master a long manual focus lens in the field. Not too heavy for a long lens attached to a D90, but I have been using my left hand to hold this 500mm lens while taking pictures of hawks jumping off of branches. I did hope that this lens would be a little sharper at longer ranges, but again, for this price, hard to complain. The included mount is not ideal as it can start to come lose while adjusting focus. I could not tighten it enough to prevent it coming lose again.
    Date published: 2009-12-24
    Rated 5 out of 5 by from The Right Tool in the Right Place Considering how inexpensive this lens is it performs very well. As a nature photographer, it gives me a distinct, and light weight, advantage of getting still images of wildlife that nearly fill the frame - without the subject's awareness of my presence. Definitely a good addition to your existing lenses! Keep in mind that it is manual focus and that because of its focal length you require a tripod and a remote (or cable) release for blur free images.
    Date published: 2011-01-12
    Rated 4 out of 5 by from It takes a bit of patience I use this lens on a Sony a330 DSLR , for wildlife,birds ,and landscapes . It is built well . I like the metal construction .I think its a great value for the money . I dont like it being f/8 . It can produce good photos , if you have the patience , as it is manual focus , and getting the right shutter speed takes time . I have been able to get a clear photo at 50 yard and can count the needles on a branch of a pine tree . A sturdy tripod is a must have . I have a cheap one and a breeze will make camera shake .
    Date published: 2010-07-08
    Rated 4 out of 5 by from Give it a may be suprised If you do not shoot manual...then don't bother with it.
    Date published: 2012-12-11
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