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2. As Seen on TV review: HD Vision sunglasses - AOL

   www.aol.com/news/2010-07-22-hd-vision-sunglasses...

   The Product: HD Vision Sunglasses The Price: HD Vision Ultra, online $10 plus $6.99 shipping and handling: $9.99 in some retail stores: HD Vision WrapAround, online $14.99 plus $7.95 shipping and ...

3. Mirrored sunglasses - Wikipedia

   en.wikipedia.org/wiki/Mirrored_sunglasses

   Mirrored sunglasses. A person wearing mirrored sunglasses. Mirrored sunglasses are sunglasses with a reflective optical coating (called a mirror coating or flash coating) on the outside of the lenses to make them appear like small mirrors. The lenses typically give the wearer's vision a brown or grey tint.

4. Optimum HDTV viewing distance - Wikipedia

   en.wikipedia.org/wiki/Optimum_HDTV_viewing_distance

   This table can be used in a number of ways : Find the optimal distance for a given screen. Example: for a 4K UHD screen 140 cm high (112 inches diagonal), the optimal distance is 140 × 1.6 = 224 cm. Find the right screen size. Example: for a 1080 HDTV used at a distance of 250 cm, you need to find a screen whose height is close to ⁠ 250. /.

5. List of 4K video recording devices - Wikipedia

   en.wikipedia.org/wiki/List_of_4K_video_recording...

   Panasonic DVX-200 – 4k 60fps. Point Grey FL3-U3-88S2C-C 8.8 MP Color USB 3.0 – released in 2012 and records at DCI 4K (the framerate is limited to 21 fps) [ 7] RED EPIC – released in 2011 and records at 5K RAW (5120×2700 13.8 megapixels) & DCI 4K (4096×2160, 8.8 megapixels) RED Scarlet-X – released in November 2011.

6. Adjustable-focus eyeglasses - Wikipedia

   en.wikipedia.org/wiki/Adjustable-focus_eyeglasses

   Adjustable focus eyeglasses are eyeglasses with an adjustable focal length. They compensate for refractive errors (such as presbyopia) by providing variable focusing, allowing users to adjust them for desired distance or prescription, or both. Current bifocals and progressive lenses are static, in that the user has to change their eye position ...

7. I tried those Pair Eyewear glasses with the magnetic ... - AOL

   www.aol.com/lifestyle/tried-those-pair-eyewear...

   With prices starting at $60 per frame, prescription lenses included, Pair is already pretty affordable. However, for a limited time, Yahoo Life readers can save 15 percent on any Pair Eyewear ...