The Opteka 800mm f/8 features 800mm at focal length with maximum aperture of f/8. The lens construction has 8 elements in 8 groups and has diagonal angle of view at 3 degrees. Closest focusing distance at 11′ and has a filter size of 105mm. The Opteka 800mm f/8 lens weighs 2.09 lbs and it measures 4.37″ in diameter and 5.72″ long.
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Opteka 800mm f/8 User Reviews
Verry nice pics shot with this lens, clear and high def
“I bought this lens for wildlife shots and found it good for surf shots. I used it for high def shots of the moon and I am very pleased with the quality of the lens! “ – by R. Terwilliger
Very Nice Indeed
“I had an old Nikkor 500mm mirror lens which I gave to my nephew because it sucked so bad. This Opteka lens has a lot longer focal length, is nice, and is reasonably priced. It seems just a bit better than the Nikon, and much less expensive of course. Manual focusing is very touchy – on both lenses. Just a law of physics. Of course you almost have to use a good stable tripod too. I recommend this Opteka lens highly. I use it on my Nikon D300s and the D80. “ – by Paul Garland
Nice lens but only works on Manual
“Pictures seem good from a first try with the new lens. As with the other reviews, focus is tough to get right but worth it when you get it right. I have a D40X and as a heads-up to others the camera will give the message “no lens attached” if you use any mode other than Manual so if that’s okay then go ahead and get one. “ – by M. Knight
Diamond in the rough
“Synching with a flash was a revelation. The first time I used a flash and saw the results I began to realize how clean and sharp an image this lens was capable of. Of course there are very few situations where you can use a flash with an effective focal length of 1200 mm and closest focus over 11 feet…but it is an useful exercise to learn the abilities of the lens, or if you like to extremely flatten your portrait or still life visual space…” – by Jeffrey L. Beddow
“I bought this lens to do some nature photograpy and it did exactly what it was suppose to do. It required high shutter speed or tripod stabelization for sharpness and with its very narrow depth of field focusing was critical. But it did exactly what I needed producing great photographs. “ – by Buck
Opteka 800mm f/8 Sample Photos
Opteka 800mm f/8 User Manual
Opteka 800mm f/8 Specifications
The Opteka mirror lens is incredibly compact and lightweight. Using an advanced reflex design, this is a mirror lens that is ideally suited for wildlife and sports photography. It has a fixed aperture of f/8. Opteka mirror lenses incorporates advanced computer designed optics and the latest in multi-coating techniques. The process of multi-coating assures virtually flare free photographs even under adverse lighting conditions resulting in crisp high contrast pictures with full color fidelity.
Advances in high-index / low-dispersion optical glasses, new barrel materials, and exotic anti-reflection coatings, along with the latest in computer-aided-design / computer-aided-manufacturing, are combined to produce lenses of unprecedented quality. Diamond-cut from crystal-clear, water-white optical glass, Opteka lenses are ground and polished to a precise precision.