Telescopes: Opteka

Tuesday, August 23, 2011

Opteka 800mm f/8 High Definition Telephoto Mirror Lens for Digital SLR Cameras + Lens Converter To Telescope + 2X Teleconverter Kit

Opteka 800mm f/8 High Definition Telephoto Mirror Lens for Digital SLR Cameras + Lens Converter To Telescope + 2X Teleconverter Kit Reviews

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Opteka 800mm f/8 High Definition Telephoto Mirror Lens for Digital SLR Cameras + Lens Converter To Telescope + 2X Teleconverter Kit Feature

Groups/Elements: 8/8
Max Diameter: 4.37"
Length: 5.72"
Weight: 2.09 lbs
Front Filter Size: 105mm

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.

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.

The Opteka 2x High Definition Tele-Converter is for use with T-Mount manual focus lenses. It will multiply the focal length of your existing lens by 2x, and will cut back the amount of light by two f/stops.

The Opteka 2x High Definition Tele-Converter is for use with T-Mount manual focus lenses. It will multiply the focal length of your existing lens by 2x, and will cut back the amount of light by two f/stops.

For example, using a 2x tele-converter with a 500mm lens will effectively increase the focal length to 1000mm. A lens set to f/2.8 will now be f/5.6. Convert Lens into a high powered Telescope
Fits T-Mount lenses
Will Magnify Your Lens 10X its Focal length

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Aug 23, 2011 22:41:08

Thursday, June 16, 2011

Opteka 500mm f/8 High Definition Preset Telephoto Lens + Lens Converter To Telescope + 2X Teleconverter Kit + Opteka 70" Professional Tripod

Opteka 500mm f/8 High Definition Preset Telephoto Lens + Lens Converter To Telescope + 2X Teleconverter Kit + Opteka 70" Professional Tripod Reviews

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Opteka 500mm f/8 High Definition Preset Telephoto Lens + Lens Converter To Telescope + 2X Teleconverter Kit + Opteka 70" Professional Tripod Feature

Angle of View: 5°
Minimum Focus Distance: 33 ft.
Focus Modes: Manual focus
Aperture: f/8.0 - f/32.0
Filter Size: 67mm

An Opteka High Definition 500mm preset telephoto lens is fully automatic and incorporates not only computer optical design, but also the latest optical multi-coating techniques. The process of multi-coating assures virtually flare free photographs even under adverse lighting conditions resulting in crisp, high contrast pictures.

Preset Lenses are designed to retain a full range of exposure, automation and metering capabilities of the cameras on which they are mounted. This lens is great for nature and sports photography. The amazing power of this lens gives you the equivalent of looking through a pair of 10x power binoculars. It has a manual preset diaphragm, a rotating tripod mounting collar and a soft lens pouch.

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.

Opteka lenses put more creative control where it belongs - in your hands.

The Opteka 2x High Definition Tele-Converter is for use with T-Mount manual focus lenses. It will multiply the focal length of your existing lens by 2x, and will cut back the amount of light by two f/stops.

For example, using a 2x tele-converter with a 500mm lens will effectively increase the focal length to 1000mm. A lens set to f/2.8 will now be f/5.6.

Convert Lens into a high powered Telescope
Fits T-Mount lenses
Will Magnify Your Lens 10X its Focal length

Opteka applied their legendary craftsmanship and state-of-the-art engineering to create a unique professional tripod made for today's photographer/videographer. Compatible with most digital, film or video cameras.