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Rokinon 800mm f/8.0 Mirror T-Mount Lens (Black)

You Pay: $184.00
Product Highlights
  • 800mm Telephoto Lens Weighs Just 33 oz
  • Low-Dispersion Optical Glass
  • Fully Multi-Coated
  • Focuses to 5.6' (1.7m)
  • Fixed f/8.0 Aperture
  • Front 105mm Filter Thread
  • Manual Focus

This 800mm f/8.0 Mirror T-Mount Lens (Black) from Rokinon is a tremendous addition to your camera bag, opening up unimagined and powerful photographic possibilities. It's lightweight (33 oz/935.5g) and compact (just 5.68"/14.42 cm long) and it focuses as close as 11' (3.5m). The aperture is fixed at f/8.0. This manual focus lens is constructed from fully multi-coated low-dispersion optical glass, with a 105mm front filter thread. A T-ring adapter (available separately) is required to mount this lens to a camera body.

Lightweight (33 oz/935.5 g) 800 mm telephoto lens
Low-dispersion optical glass
Fully multi-coated
Focuses to 11' (3.5 m)
Fixed f/8.0 aperture
Front 105 mm filter thread
Performance
Focal Length 800mm
Aperture Maximum: f/8
Minimum: f/8
Camera Mount Type T-mount (T-thread)
Format Compatibility 35mm Film / Full-Frame Digital Sensor
Angle of View
Minimum Focus Distance 11' (3.35 m)
Elements/Groups 8/8
Features
Image Stabilization No
Autofocus No
Tripod Collar No
Physical
Filter Thread Front:105 mm
Dimensions (DxL) Approx. 4.37 x 5.68" (11.1 x 14.43 cm)
Weight 33 oz (936 g)
Rokinon 800mm f/8.0 Mirror T-Mount Lens (Black)
  • Lens Cap
  • Lens Case
  • 1-Year Rokinon Warranty
  • REVIEW SNAPSHOT®

    by PowerReviews
    Rokinon800mm f/8.0 Mirror T-Mount Lens (Black)
     
    3.4

    (based on 7 reviews)

    Ratings Distribution

    • 5 Stars

       

      (1)

    • 4 Stars

       

      (2)

    • 3 Stars

       

      (3)

    • 2 Stars

       

      (1)

    • 1 Stars

       

      (0)

    100%

    of respondents would recommend this to a friend.

    Pros

    • Lightweight (6)

    Cons

      Best Uses

      • Wildlife photos (5)
      • Night photography (3)
        • Reviewer Profile:
        • Photo enthusiast (5)
        • Was this a gift?:
        • No (7)

      Reviewed by 7 customers

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      Displaying reviews 1-7

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      (1 of 1 customers found this review helpful)

       
      5.0

      Great special purpose lens

      By Jay

      from Austin, TX

      About Me Semi-pro Photographer

      Verified Reviewer

      Pros

      • Durable
      • Lightweight
      • Rugged
      • Strong Construction

      Cons

      • Blurry Focus

      Best Uses

      • Landscape/Scenery
      • Night Photography
      • Wildlife Photos

      Comments about Rokinon 800mm f/8.0 Mirror T-Mount Lens (Black):

      This is not an everyday casual lens. I bought this lens, because I was looking for a way to capture better detail of the moon without spending a small fortune. I have also used this lens to take pictures of distant skylines. For my special purposes, it's an incredible value. It's light, simple, and rugged (mostly metal). I use it with a Vixen 37301 T Ring adapter and a Nikon D800.

      Shooting with this lens is a process. The slightest vibration will blur the image. Being ever so slightly off with the focus ring will also blur the image. You'll want to use a tripod, and a remote and/or delayed exposure/mirror-lock-up to reduce internal vibration. For focusing, you'll want to use your camera's display to digitally zoom in. The slightest turn of the focus ring can result in a blurry image. So, take a little time to get it just right by checking the display. Take several exposures. Check them before you move on.

      At its sharpest, the lens will probably be a bit softer than any of your other lenses, but this is easy to correct in Lightroom or Photoshop without getting that artificially sharpened look. Since a mirror lens does not produce chromatic aberration, the edges are cleaner and easier to sharpen.

      If you take the time to shoot with this lens correctly, you'll get results that compete with lenses that cost 65x more.

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      • No

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      2.0

      Not for me

      By Staunton Steve

      from Staunton, VA

      About Me Photo Enthusiast

      Verified Buyer

      Pros

      • Lightweight

      Cons

      • Blurry Focus
      • Poor in Low Light

      Best Uses

        Comments about Rokinon 800mm f/8.0 Mirror T-Mount Lens (Black):

        Many reviewers noting the extreme difficulty in focusing this lens. I agree. I set up a tripod, used a shutter release in live view mode on my D800E and was never able to get an image that was better than acceptable. If you imagine using this for wildlife, you got a long row to hoe. I believe that with practice you could get to where some, probably not most of your shots are keeps if your threshold is not too high.

        I found that shots of street signs always had a fringe around the letters not matter how carefully I tried to focus and refocus. I returned mine. I go with less magnification and use my Nikon 80-400 w/ TC-14E-II 1.4 teleconverter. The images similarly cropped to match the Rokinon were as good or better. And with the Nikon I get autofocus and better contrast.

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        • No

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        (1 of 2 customers found this review helpful)

         
        4.0

        In my opinion, a very good value.

        By Claudia

        from Chicago, IL

        About Me Photo Enthusiast

        Verified Buyer

        Pros

        • Consistent Output
        • Good value
        • Lightweight

        Cons

        • Limited usage

        Best Uses

        • Moon Photography
        • Night Photography
        • Wildlife Photos

        Comments about Rokinon 800mm f/8.0 Mirror T-Mount Lens (Black):

        I rated this at four stars, mostly because of the good value. If I was rating based solely on the performance I have experienced, I'd rate it a 3.5.I am an amateur photographer who has taken a few classes, read up on things and practiced quite a bit. In the past couple of years, I've become very interested in photographing the moon. I have other lenses I've used to take photos of the moon, but it had become increasingly clear to me that perhaps an 800mm with a teleconverter (to equal 1600mm) would be a good option for me.Being an amateur and having limited resources to spend on my hobby, I opted to buy this lens and use a teleconverter I already own. Having only f/8.0 to work with is limiting, but I set up my tripod and adjusted the ISO and shutter speed until I found a good mix (ISO 200, shutter speed 1/250) and took some very good photos of the moon that my (also amateur) friends have admired.I've also used this lens at the zoo and botanical gardens without the teleconverter and it took very nice photos as well. I plan to try my luck at a state park with eagles next winter, and expect to have good results there as well.To summarize, for the money this is a lens that will give you very nice photos and I am very happy with my purchase.

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        • No

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        3.0

        A Fun Toy to Experiment With

        By ArtieV

        from Sarasota, FL

        About Me Photo Enthusiast

        Verified Buyer

        Pros

        • Lightweight
        • Serious "reach"

        Cons

        • Critical Focus Tricky

        Best Uses

        • Full Moon Images
        • Landscape/Scenery
        • Night Photography
        • Wildlife Photos

        Comments about Rokinon 800mm f/8.0 Mirror T-Mount Lens (Black):

        A decent lens for moon rise/set as well as [carefully] sun rise/set images. One shot of a sailboat passing in front of a huge setting sun makes the purchase worth it. Use it on an APS-C cam for even more magnification. 1200mm equliv. on my Nikon D90. Critical focus can be tricky, as a slight turn of the barrel makes a big difference. Cable release or exposure delay mode recommended to avoid blur from vibration. Contrast is low, but can be easily adjusted in post. Decent considering a pro 800mm carries a five digit price tag.

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        (2 of 2 customers found this review helpful)

         
        3.0

        Extreme Reach Good Fun

        By Brian

        from MN

        About Me Photo Enthusiast

        Verified Buyer

        Pros

        • Lightweight

        Cons

        • Poor in Low Light
        • Slow Focus

        Best Uses

        • Wildlife Photos

        Comments about Rokinon 800mm f/8.0 Mirror T-Mount Lens (Black):

        This lens is manual focus and fixed aperture, and has the characteristic ring bokeh you get with mirror lenses. Note you will also need a lens adapter to fit this lens to your camera body. (T mount to Nikon or Canon mount)I bought this lens for those occasional times when I really need the extreme reach, and it is indeed extreme. I find myself having to back up with my feet to fill a subject in a frame. If you were at a baseball stadium and wanted the batter in view, you'd have to be sitting in the outfield bleachers. Framing is a big challenge.For wildlife photography, which is my primary purpose for getting this lens, there are a couple of gotchas. Finding your subject and tracking it with an 800mm lens is extremely challenging. The F/8 aperture means you need really good light, and the 800 length means you'll want a very fast shutter speed to avoid blur from hand shake. If you want to handhold this lens (which is tempting, because it is very lightweight) you will need a camera with great high ISO performance. But in all honesty, the sane way to use this lens is on a sturdy tripod. This lens is capable of sharp images, but attaining critical focus manually is very difficult.With all the "minuses", you may be wondering what are the pluses? Well the good news is for wildlife photography, at 800mm you can focus on wildlife without scaring them off. Which is a pretty huge plus. I plan to keep this lens for that very reason. I have pro level telephoto lenses that are far more capable and more expensive, but this is light and compact and great for "scouting" an nature area I might return to later. I'm not afraid to leave this lens in the car.I would "cautiously" recommend this to a friend, but only if they fully understood the limitations going in.

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        (5 of 5 customers found this review helpful)

         
        3.0

        May not be what you think

        By scopemeister

        from east central Missouri

        About Me Semi-pro Photographer

        Verified Buyer

        Pros

        • Compact

        Cons

          Best Uses

            Comments about Rokinon 800mm f/8.0 Mirror T-Mount Lens (Black):

            I bought this lens for eclipses (solar/lunar), Moon on the horizon shots, and the transit of Venus. Price/ performance ratio is very good but there are two limitations to be aware of.First is balance. The Rokinon was chosen over the other similar mirror lenses because the specifications web page listed a "fixed-rotating" tripod collar. Since this feature couldn't be seen in the product pictures I called B&H to verify. The salesman asked what I thought a "fixed-rotating" tripod collar was (a way to mount the lens directly to a tripod) and then he assured me that the lens did have that feature. There is no way to mount the lens directly to a tripod. While not too much trouble to rig up a bracket for better balance (needed), it was even more disappointing to be assured that the lens could be mounted directly to a tripod.Second limitation involves focus. The internal threading is ten times too coarse for manual focus. Magnified "live view" was required to check focus, but even then it was nearly impossible to focus sharply because the internal focusing threads are too coarse. I found it necessary to rig up method of a fine focusing adjustment with a hose clamp, rubber band, and an 8-32 screw.

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            4.0

            Very good lens

            By ENALNAPA

            from México, D.F.

            About Me Photo Enthusiast

            Verified Buyer

            Pros

            • Compact
            • Lightweight

            Cons

              Best Uses

              • Travel
              • Wildlife Photos

              Comments about Rokinon 800mm f/8.0 Mirror T-Mount Lens (Black):

              Good construction. Good optics. Good price. Fixed f/8 or f/6.3 in 800mm or 500mm is common in this type of mirror lenses. Light weight. To get better results for the focusing process use Live View option in the camera if it is possible.

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              • No

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