Product Description
The Opteka manual focus 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.
The included Opteka 2X Teleconverter effectivly doubles your zoom converting this lens to a 500-1000mm Super Telephoto!
Specifications
Filter Size: 72mm front, 30.5mm rear
f/Stop Range: f/8.0 (f/16 with 2X)
Minimum Focus Distance: 5.6' (1.7 m)
Magnification: 1:3
Angle of View: 5°
Groups/Elements: 6/7
Length: 3.4" (8.6 cm)
Maximum Diameter: 3.0" (7.6 cm)
Weight: 0.79 lb (360 g)
Included Items
~ Opteka 500mm f/8 Telephoto Mirror Lens
~ Opteka 2x Teleconverter~ 3 Filters (Skylight, Nd 2x, Nd 4x)
~ T-Mount Lens Adapter
~ Lens Caps
~ Lens Pouch
~ 10 Year Warranty
- f/8-16, High-index / low-dispersion optical glass, Fully multi-coated, every element, Anti-reflection coating
- Incredibly compact and lightweight, Fully Multi-coated, Manual Focus
- Soft pouch and three (3) rear mounted, 30.5mm filters, (ND-2X, ND-4X & Skylight)
- 500mm Mirror Lens, 2x Multiplier, Carrying bag, and lens caps included!
- 10 Year Warranty
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Customer Rating :  List Price : $299.99 Price : $114.95 
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Cheap price on"Opteka 500mm / 1000mm High Definition Mirror Telephoto Lens for Pentax K-30, K-2, K-M, K-5, K-R, K-X, K-7, K-2000, K20D, K100D, K110D, K10D and 645D Digital SLR Cameras" & for sale shoppings!
>>Opteka 500mm / 1000mm High Definition Mirror Telephoto Lens for Pentax K-30, K-2, K-M, K-5, K-R, K-X, K-7, K-2000, K20D, K100D, K110D, K10D and 645D Digital SLR Cameras
Tag : Check price "Opteka 500mm / 1000mm High Definition Mirror Telephoto Lens for Pentax K-30, K-2, K-M, K-5, K-R, K-X, K-7, K-2000, K20D, K100D, K110D, K10D and 645D Digital SLR Cameras" Reviews
Opteka 500mm / 1000mm High Definition Mirror Telephoto Lens for Pentax K-30, K-2, K-M, K-5, K-R, K-X, K-7, K-2000, K20D, K100D, K110D, K10D and 645D Digital SLR Cameras Reviews
| 32 of 33 people found the following review helpful  What an incredible piece of glass !!!, By Ray Janus (Gilbert, AZ USA) - See all my reviews Amazon Verified Purchase This review is from: Opteka 500mm / 1000mm High Definition Mirror Telephoto Lens for Pentax K-30, K-2, K-M, K-5, K-R, K-X, K-7, K-2000, K20D, K100D, K110D, K10D and 645D Digital SLR Cameras (Camera) Being an optical systems designer by training, with some of the finest glass on the market in my inventory (including the past purchase of a $70K aerial lens), I was amazed by the quality and capabilities of this reflection based 500mm T-mount lens. When shipped through an Amazon reseller, the package included a 2x teleconverter and a T-K mount Pentax adapter.An important consideration behind this lens is that it is a fixed aperature (f/8 with supplied 2d (f/16) and 4d (f/32) neutral density filters). I found this lens to be worth ever dollar of the original $400.oo list price, instead of the very attractive package that Amazon put together. Having worked with other reflector based tele lenses and telescopes, including Celestron optics which I am very familiar with, I found this lens to be at the top of it's class. Along with it's solid metal construction and light weight, this lens also surprised me by it's macro capabilities, focusing down to about 5', amazing for a 500mm... Read more 11 of 11 people found the following review helpful  Not worth even $115, By Amazon Verified Purchase This review is from: Opteka 500mm / 1000mm High Definition Mirror Telephoto Lens for Pentax K-30, K-2, K-M, K-5, K-R, K-X, K-7, K-2000, K20D, K100D, K110D, K10D and 645D Digital SLR Cameras (Camera) I have on two occasions in full sunlight taken long distance shots (10 yds to 75 yds) with this lens on a Pentax K10D (around 30 shots). I was not ever able to get a picture in focus and it is not a depth of field issue---the whole picture was blurry. All shots were taken with the camera on a tripod and with 2 second delay. At the same time I took the pictures with my Tamron 28-300 on the same camera body and tripod set up. All the shots at 300MM cropped looked considerably better than anything shot with the Opteka 500MM. I would not recommend this lens to anybody. A lens that doesn't produce clear pictures is not worth any price. (Maybe the issue is the K10D plus lens combination. There is no way for me to check that variable.) 10 of 10 people found the following review helpful for this price, it quite good, Amazon Verified Purchase This review is from: Opteka 500mm / 1000mm High Definition Mirror Telephoto Lens for Pentax K-30, K-2, K-M, K-5, K-R, K-X, K-7, K-2000, K20D, K100D, K110D, K10D and 645D Digital SLR Cameras (Camera) I've never heard of Opteka before I bought this lens, but I said why not try it? And I'm quite happy with it. I did not have the time to thoroughly test it but for the first looks it quite ok. I use it with a Pentax K-x.Pros: - good focus range - 2x tele converter and 3 filters - decent size good handling - despite its big focal lenght good close focusing (less then 2m!) slight Cons: - requires a lot of light (fixed f/8) - but open doors there's almost always enough sunlight. - manual focus only - can be advantage as well - but can be hard when not enough light. Over all it's not the best lens, but for a hundred bucks it's quite good. Also it requires some experience to take good pics with it, because even if you see the image in the viewfinder bright it still might produce underexposed pics. Ergo use manual shutter speed. Glass and lens quality is fine for this price. |
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