Tag : lens nikon, f 8, slr d80, opteka 500mm, d70s d70, d50 d40x
 |  Company : Opteka List Price : $139.95 Amazon Price : $74.95 Used Price : Average customer review :  |
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Features
- Will mount to All Nikon Manual Focus or AutoFocus Film or Digital SLR Camera
- High definition optics produce sharper, more intense pictures
- Incredibly compact and lightweight
- Fully Multi-coated
Product Description
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 f8. It comes complete with a soft pouch and three (3) rear mounted, 30.5mm filters, (ND-2X, ND-4X & Skylight). Opteka mirror lenses incorporates advanced computer designed optics and the latest in multi-coating techniques.รก 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.Customer reviews
First Hubble Mirror 
The lens is like the very first Hubble photos out of focus. I had to shoot every thing with manual settings on A Nikon D40X (all exposures were trial and error). As with the first mirror for the Hubble Telescope - I think that the mirror is a fraction off, making it out of focus no matter how accurate your camera is. I have taken far superior photos with a fixed lens Digital Zoom Camera. I've been in photography for over thirty years and can truthfully say this is the worst lens ever purchased.
Good for the price
No question that Opteka 500 mm gave the better image for the price. For young birdwatchers (without rich parents) it is a tool to have. It also allow good shots with poor light conditions. But if you are trying to buy this product from Europe, you better look for a very good friend in USA, otherwise you can't use your one as shipping address.
You get what you pay for 
Of course I didn't expect the same kind of performance as a $$$$ Nikkor lens would give me. So I wasn't disappointed.
But I had hoped for better results -- I put it on a tripod to avoid vibration focusssed as exactly as possible onto a high-contrast banner at a race track. But still I never could a sharp edge from that banner.
Using the same setup & procedure with a different lens, sharpness jumped a lot. Price of that lens also jumped a lot.
I cannot recommend it on D80 and lower as this is a non-CPU lens and metering will not work so it is 100% manual and try & error. The D200 can meter in "M" mode.
Why 5 Stars? Read on... 
Yes I know this is not an award winning lens that will pass all those technical tests you see in the photo magazines with flying colors but what do you want for $75? I've paid more than that for a filter. At this price you can feel free to experiment with a long telephoto (this lens should be 750mm equiv on most DSLR cameras)
I say try this lens and if you find that your creative skills start to exceed its' quality and features then by all means invest in a lens costing 10 to 20 times as much... If you are like most photographers out there (me included) I think you will find this lens perfect for the few times you need a long reach telephoto.
I am disappointed
I was hoping that when I bought this lens that I would be able to get sharp vivid close-up of the moon. However, when I tried to take these pictures during the last full moon, the pictures were not that sharp and unless I am doing something wrong, I am disappointed with the performance of this lens.
