Telescopes: Digital

Showing posts with label Digital. Show all posts

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

Wednesday, August 3, 2011

RPS Wireless Radio Remote Release for the Sony Alpha Digital SLR Cameras (Sony Plug)

RPS Wireless Radio Remote Release for the Sony Alpha Digital SLR Cameras (Sony Plug) Reviews

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RPS Wireless Radio Remote Release for the Sony Alpha Digital SLR Cameras (Sony Plug) Feature

Omni-Directional Wireless RF Radio Remote Release
Consists of Receiver which connects to camera's cable release socket and Sender
Range of over 100 feet
16 channel
Two position switch (one for focusing of camera and one for shutter release)

Eliminates the need for a cable release. Allows the camera to be fired from a distance up to 100 ft. uses RF (radio frequency) signals, not line-of-sight like infrared. Transmitter has a 2 position switch...press lightly for prefocusing, and then continue pressing to release the shutter. LED lights indicate prefocus and exposure. May be used on up to 16 channels...user settable.

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Aug 03, 2011 21:28:07

Friday, April 15, 2011

Celestron 44342 Round LCD Digital Microscope (Black)

Celestron 44342 Round LCD Digital Microscope (Black) Reviews

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Celestron 44342 Round LCD Digital Microscope (Black) Feature

Digital biological microscope View with 2" LCD screen 24x to 240x Power and up to 1920x with 8x digital zoom
Built-in 2mp digital camera 32MB internal memory Objective Lenses - 4x, 10x, and 40x
USB 2.0 cable SD card slot Bottom LED illumination
Slide holder AC adapter Five prepared slides Weight - 28oz (794g)

This innovative microscope design allows you to view specimens on the LCD screen which provides for comfortable viewing for the individual and small groups. The digital camera allows you to take snapshot images or short videos. Ideally suited for examining specimen slides of yeasts and molds, cultures, plant and animal parts, fibers, bacteria, etc.