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Opteka 500mm f/6.3 Mirror Lens for T Mount

BH #OPT5006M • MFR #OPT5006M
Opteka 500mm f/6.3 Mirror Lens for T Mount
Key Features
  • T-Mount Lens/Full-Frame Format
  • Fixed f/6.3 Aperture
  • Catadioptric Telephoto Lens
  • Multi-Coated Optics
A super telephoto focal length with a relatively tiny form factor, the 500mm f/6.3 Mirror Lens from Opteka is a reflex lens featuring a threaded T-mount for adapting to a wide variety of camera types. Its Cassegrain design enables it to achieve a 500mm focal length within a compact and lightweight form factor that is significantly smaller than a traditional 500mm lens. Its optical design is also fully multi-coated to suppress lens flare, ghosting, and surface reflections for increased contrast and color neutrality when working in strong lighting conditions. Manual focus control is possible down to 6.6' for working with close-up subjects, and the lens accepts both 95mm front and 34mm rear threaded filters.
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Opteka 500mm f/6.3 Mirror Lens Overview

A super telephoto focal length with a relatively tiny form factor, the 500mm f/6.3 Mirror Lens from Opteka is a reflex lens featuring a threaded T-mount for adapting to a wide variety of camera types. Its Cassegrain design enables it to achieve a 500mm focal length within a compact and lightweight form factor that is significantly smaller than a traditional 500mm lens. Its optical design is also fully multi-coated to suppress lens flare, ghosting, and surface reflections for increased contrast and color neutrality when working in strong lighting conditions. Manual focus control is possible down to 6.6' for working with close-up subjects, and the lens accepts both 95mm front and 34mm rear threaded filters.

This reflex lens is compatible with full-frame and smaller-sized sensors and features a threaded T-mount, which is compatible with a variety of optional adapters for mounting to various camera mounts.
Catadioptric system with Cassegrain design helps to reduce the overall size and weight of the lens while still providing a super telephoto 500mm focal length.
Multi-coated optics help to reduce lens flare and ghosting for increased contrast and color fidelity.
Manual focus design offers a minimum focusing distance of 6.6'.
Both a front 95mm filter thread and a rear 34mm filter thread are available.
UPC: 813789014638

Opteka 500mm f/6.3 Mirror LensSpecs

Key Specs
Focal Length
500mm
Maximum Aperture
f/6.3
Lens Mount
T-Mount
Lens Format Coverage
Full-Frame
Focus Type
Manual Focus
Image Stabilization
No
Filter Size
95 mm (Front)
34 mm (Rear)
Maximum Aperture
f/6.3
Minimum Aperture
f/6.3
Lens Mount
T-Mount
Lens Format Coverage
Full-Frame
Angle of View
4.1°
Minimum Focus Distance
6.56' / 2 m
Optical Design
7 Elements in 6 Groups
Focus Type
Manual Focus
Image Stabilization
No
Filter Size
95 mm (Front)
34 mm (Rear)
Dimensions (ø x L)
3.86 x 4.72" / 98 x 120 mm
Weight
24.87 oz / 705 g
Packaging Info
Package Weight
1.845 lb
Box Dimensions (LxWxH)
7.35 x 4.9 x 4.5"

Opteka 500mm f/6.3 Mirror Lens Reviews

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Does this lens have any noticeable comatic ...

Does this lens have any noticeable comatic aberration?
Asked by: Nicole
We have not heard of any noticeable chromatic aberration with this lens to date.
Answered by: Kirk
Date published: 2022-01-06

Would it be possible to adapt a 67-mm ND filter ...

Would it be possible to adapt a 67-mm ND filter to the rear 35-mm filter thread? How might this affect the image for Canon APS-C?
Asked by: Nicole
No, not at all.
Answered by: Rob
Date published: 2020-08-19

Will I need an adaptor to use this lens with my ...

Will I need an adaptor to use this lens with my Nikon D3500?
Asked by: Pat
Yes you would just need a T-Mount to F-Mount adapter.
Answered by: Zachariah
Date published: 2021-02-22

What is the difference between this and the Bower ...

What is the difference between this and the Bower 500 mm f/6.3 mirror lens that costs $199? They look like they come from the same factory.
Asked by: Michael
The Opteka 500mm f/6.3 Mirror Lens for T Mount and the Bower 500mm f/6.3 Manual Focus Telephoto T-Mount Lens are very similar in design. There are a couple differences. The Opteka is currently made in China, whereas the Bower is currently made in South Korea. The Opteka comes with a Limited 10-Year Warranty, whereas the Bower comes with a Limited 1-Year Warranty
Answered by: Yaakov
Date published: 2022-04-15

Will it fit a canon AE-1 35mm film camera?

Will it fit a canon AE-1 35mm film camera?
Asked by: Michael
Opteka 500mm f/6.3 Mirror Lens for T Mount is compatible with the Canon AE1 but you also need to get this FD to T mount adapter. https://www.bhphotovideo.com/c/product/116734-REG/General_Brand_ATC_T_Mount_SLR_Camera_Adapter.html
Answered by: Daniel C
Date published: 2022-04-12

What is the magnification factor at minimum focus ...

What is the magnification factor at minimum focus distance?
Asked by: Nicole
Unfortunately, this information is not published by the manufacturer.
Answered by: Kirk
Date published: 2021-05-20

Will this work with a Nikon D3500?

Will this work with a Nikon D3500?
Asked by: Pat
It is a manual lens so it will work. You will need one of these adapters https://bhpho.to/2ZSLj53.
Answered by: Reuben K
Date published: 2019-06-27

Will this work with a Canon EOS T100 with the ...

Will this work with a Canon EOS T100 with the T-mount adapter for EF/EF-S mounts? I notice it's pretty large and I'm wondering if the flash protrusion which sticks out about 9/16 of an inch on the T100 would interfere with this fitting correctly.
Asked by: Cory
Yes it will fit the T100. It is manual focus only and your camera will only work in manual or aperture priority exposure modes.
Answered by: Dan W
Date published: 2021-04-23
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