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

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

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

B&H # RO8008B MFR # 800M-B
No Longer Available

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
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Rokinon 800mm f/8.0 Overview

  • 1Description

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
In the Box
Rokinon 800mm f/8.0 Mirror T-Mount Lens (Black)
  • Lens Cap
  • Lens Case
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Rokinon 800mm f/8.0 Specs

    Lens Mount T-Mount
    Angle of View 3
    Minimum Focus Distance 11' / 3.35 m
    Optical Design 8 Elements in 8 Groups
    Dimensions ( x L) 4.37 x 5.68" / 11.10 x 14.43 cm
    Packaging Info
    Package Weight 2.45 lb
    Box Dimensions (LxWxH) 9.3 x 5.7 x 5.7"

    Rokinon 800mm f/8.0 Reviews

    800mm f/8.0 Mirror T-Mount Lens (Black) is rated 3.7 out of 5 by 20.
    Rated 3 out of 5 by from Fun Lens ... Its A Great Built Lens, The Fixed F/8 Allows Plenty Of Light Even On Cloudy Snow Looming Days As The Day I Just Shot With It ... Manual Focus Ring Is Smooth And Not overly tight or jittery ... Overall Feel And Appearance of the lens screams quality !!! I matched this with the Kowa t-mount adapter which is the only metal adapter I've been able to find ... I had lots of fun with this lens at an animal sanctuary where the animals had 20 acre lots to roam on and i was able to fill the frame more often than not... My only setbacks are the not so tack sharp focus and a lil undersaturated on the color side ... but overall with a lil editing itll be a great addition to my bag
    Date published: 2012-02-20
    Rated 3 out of 5 by from May not be what you think 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.
    Date published: 2012-06-05
    Rated 5 out of 5 by from Great special purpose lens 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.
    Date published: 2014-01-13
    Rated 3 out of 5 by from A Fun Addition to My Kit Is it sharp? Not terribly but 800mm is powerful, especially on an APS-C camera. I am not a wildlife shooter, I'm a landscape photographer, so I have no reason (and no funds) to invest in anything like this length of lens in a Canon L, for example which would be about 70X the price. This lens is about 70x lighter than a regular big lens would be as well. My main lenses ARE L lenses, but this is for the occasional long shot that crops up, like when wildlife just insists on being photogenic right in front of me or I want to pick out a detail. Images from this will be sent through the full battery of sharpening tools and printed in modest sizes. For that, it's perfect. This lens is f8, so some cameras may not auto-focus with it but the big thing to know is that it does NOT HAVE A DIAPHRAGM so there is no adjustment there. It's ALWAYS f/8, there is no other f stop. So exposure is controlled entirely by shutter speed and ISO. It also means that the depth of field is shallow. Focus is manual and easy and surprisingly smooth. In low light it will be difficult or impossible. If you are not a brain surgeon a tripod will be essential for most situations.Once you learn how to use its limits to your advantage it is fine, but there are some shots that will not be possible, especially up close (which for this lens is about 11 feet) where the DOF is very shallow. But to shoot the occasional bird or long detail this is a great lens for the money. Build is solid feeling with metal barrel and nice appearance. I expect non-photographers to take it for a mark of professionals while they ignore my $1600 16-35L.For less than $200, how wrong can you go?
    Date published: 2012-05-22
    Rated 1 out of 5 by from Coupdn't focus Really liked the feel of this lens but I could NOT get a good focus. I use a VERY stable surveyor's tripod modified for the camera mount along with a remote shutter release. I tried, tried and tried to get a good focused picture, in different light from bright sunlight to full moon pics, but could NOT get a decent focus. Reading other reviews, I hope this is just the lens I received but thought it was worth sharing the experience.
    Date published: 2014-08-08
    Rated 3 out of 5 by from Plan in advance This is great for its purpose. You need to plan ahead and be patient for your shot. This is not a quick adjust, take your photo and move on to the next shot. The focus is very sensative and you will need a tripod and wireless trigger. Also use the view finder to verify your focus is set correctly. The slightest movement will adjust the focus. The focus area is very shallow. Great for distance.
    Date published: 2015-08-07
    Rated 3 out of 5 by from A Fun Toy to Experiment With 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.
    Date published: 2013-06-26
    Rated 2 out of 5 by from Not for me 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.
    Date published: 2013-11-05
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    I need a padded lens case for carrying this lens. Any idea which case will fit?
    Asked by: Gary K.
    I have not purchased a case other than use the black cloth drawstring pouch that comes with the lens. I have purchased the Tiffen Coarse thread UV filter (105mm) that gives added protection, and keep the lens cap on all the time. This lens fits with 8 other lenses and everything else I own in my Ruggard Outrigger 65 backpack - that is without a doubt the best backpack I could imaging owning for padded protection of all my lenses from the elements and from each other. I put various squares of cutout foam under each lens so they all lift to the same height. Everything said, this 800mm lens fits nicely in the center of the pack, and does not move around a bit, with lots of padding from the velcro dividers and foam under like the other lenses. Nice and secure. Hope this helps give you another idea.
    Answered by: David M.
    Date published: 2018-08-28


    I see lens caps in accessories. Don't lens caps come with it?
    Asked by: Gary K.
    Yes. A lens cap comes with it. A huge lens cap!
    Answered by: JAMES C.
    Date published: 2018-08-28


    does this lens fit a Nikon 5300?
    Asked by: Anonymous
    Not sure sorry, I use with a Sony Alpha. Good lens though.
    Answered by: Bob O.
    Date published: 2018-08-28
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