Sunday, 10 April 2011

Check Out Phoenix - Lens - 500 mm - f/8.0 Mirror - Canon EF

Phoenix - Lens - 500 mm - f/8.0 Mirror - Canon EF Review





Phoenix - Lens - 500 mm - f/8.0 Mirror - Canon EF Feature


  • KIT INCLUDES 4 PRODUCTS -- ALL BRAND NEW Items with all Manufacturer-supplied Accessories + Full Phoenix USA Warranty:
  • <#1> Phoenix 500mm f/8 Mirror Lens PLUS +
  • <#2> Precision Design T-Mount for Canon EOS (Autofocus) +
  • <#3> Phoenix 2x Teleconverter + <#4> Rear Lens Cap for Canon
  • Will mount to ANY Canon EOS AutoFocus Film or Canon Digital SLR Camera Including: Rebel X, Rebel XS, Rebel G, Rebel GII, Rebel 2000, Rebel Ti, Rebel T2, Rebel K2, Rebel S, Elan 7, Elan 7E, Elan 7n, Elan 7ne, EOS 1V, EOS 3, EOS 1Ds Mark II III, EOS 1D Mark II III, 10D, 20D, 30D, 40D, 5D, Digital Rebel (300D), Digital Rebel XT (350D), Digital Rebel XTi (400D), & Digital Rebel XSi (450D), Rebel XS (1000D) etc.



Phoenix - Lens - 500 mm - f/8.0 Mirror - Canon EF Overview


Kit includes:
♦ 1) Phoenix 500mm f/8 Mirror Lens
♦ 2) Phoenix 2x Teleconverter
♦ 3) Precision Design T-Mount for Canon EOS (Autofocus)
♦ 4) Rear Lens Cap

Phoenix 500mm f/8 Mirror Lens includes: Filter Set (ND-2X, ND-4X, Skylight); Soft Pouch; Front and Rear Caps; Instruction Manual; Phoenix USA Warranty

This super-telephoto 500mm mirror lens and 2x teleconverter are incredibly compact and lightweight. Using multi-coated optics and an advanced reflex design, they're ideally suited for wildlife, nature and sports photography. The included 2x teleconverter will double the focal length to 1000mm, equivalent to the magnification a 20x high-power binocular and for additional control, a set of 3 filters (Skylight, ND-2X and ND-4X) are also supplied. Macro focusing capability provides an image to subject ratio of 1:2.7 and with the 2X teleconverter, incredibly detailed, almost life-size (1:1.35) images can be obtained. Designed to be easy to use, hold and transport, this super-telephoto lens kit offers incredible magnification and value.

Will mount to ANY Canon EOS AutoFocus Film or Canon Digital SLR Camera Including: Rebel X, Rebel XS, Rebel G, Rebel GII, Rebel 2000, Rebel Ti, Rebel T2, Rebel K2, Rebel S, Elan 7, Elan 7E, Elan 7n, Elan 7ne, EOS 1V, EOS 3, EOS 1Ds Mark II III, EOS 1D Mark II III, 10D, 20D, 30D, 40D, 5D, Digital Rebel (300D), Digital Rebel XT (350D), Digital Rebel XTi (400D), & Digital Rebel XSi (450D), Rebel XS (1000D) etc.




Available at Amazon Check Price Now!


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*** Product Information and Prices Stored: Apr 10, 2011 18:51:04

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Thursday, 7 April 2011

Physics Lenses

Free Science Help at Brightstorm! brightstorm.com How lenses work.

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Monday, 4 April 2011

FCI Vitrectomy Set

The FCI Vitrectomy Set includes a calibrated knife, self-retaining infusion tubing and a disposable plano concave lens.

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Friday, 1 April 2011

Odd Video Effect

Weird video effect I made by recording a moving piece of coloured paper through a concave lens and applying video effects later in kino. Reminds me of those old sci-fi b-movie displays.

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Thursday, 24 March 2011

Refracting Telescopes - A Closer Look

The basic design of the refracting telescope is fairly simple. There are no mirrors used in refracting telescopes, as they employ the use of both an objective lens and an eyepiece. The objective lens is used to refract or bend light so that it converges on a focus point or plane. An eyepiece is used to assist the eye in gathering light.

What differing types of refracting telescopes exist?

Galilean Telescope - This type of telescope was invented in 1609 by, you guessed it, Galileo. Though this particular design did help Galileo view the some of the objects in our solar system, it did have some flaws. The flaw rested within the eyepiece, which caused images to appear distorted. This type of telescope is very much obsolete, but Galileo still achieved simply by being one of the first to create such a wonderful piece of technology.

Keplerian Telescope - Invented by Johannes Kepler in 1611, he employed the same principles as Galileo did, but with one key difference. Rather than using a concave eyepiece like Galileo, he employed a convex eyepiece. The downside to this design was that the image being viewed was inverted (upside-down). He did, however achieve a much clearer image and a wider field of view.

Achromatic Refractors - The key difference in an Achromatic Refractor is the use of an objective lens consisting of two separate pieces of glass. These are used to bring two wavelengths, blue and red, into focus on the same plane. These telescopes are widely available today for beginners and amateurs.

Apochromatic Refractors - Following the similar objective design as the Achromatic Refractor, the Apochromatic Refractor uses an objective lens able to bring three wavelengths (red, blue and green) into focus on the same plane. These telescopes are built with extra low dispersion materials to free them from chromatic aberration. These telescopes are geared more towards the more experienced astronomer, but are still relatively simple in usage.

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Monday, 21 March 2011

eye model experiment + concave & convex lense

Experiment on the properties of image, effect of focal length, eye model. Science Exhibition 2005. SMK Agama Pahang, Muadzam Shah, Pahang, Malaysia

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