Cook Islands 2 dollars180 years of Photographie Camera Obscura Silver Coin 2006. Face Value : 2 dollars. A camera obscura (Latin for “dark room”) is an optical device that led to photography and the photographic camera. The device consists of a box or room with a hole in one side. Light from an external scene passes through the hole and strikes a surface inside, where it is reproduced, inverted (thus upside-down), but with color and perspective preserved. The image can be projected onto paper, and can then be traced to produce a highly accurate representation. The largest camera obscura in the world is on Constitution Hill in Aberystwyth, Wales. [1] Using mirrors, as in an 18th-century overhead version, it is possible to project a right-side-up image. Another more portable type is a box with an angled mirror projecting onto tracing paper placed on the glass top, the image being upright as viewed from the back. As the pinhole is made smaller, the image gets sharper, but the projected image becomes dimmer. With too small a pinhole, however, the sharpness worsens, due to diffraction. In practice, most camerae obscurae use a lens rather than a pinhole (as in a pinhole camera) because it allows a larger aperture, giving a usable brightness while maintaining focus. We thoroughly and carefully pack each parcel, be assured we will do everything that you received an order in the stated form. Q: Can I cancel my order? A: Once your order is completed it cannot be cancelled. Please be certain of your order before finalizing. Q: How long will it take to get my item? To expedite the process, it is important to follow the following points. Please, inform us about the situation what happen. The item “Cook Islands 2 dollars180 years of Photographie Camera Obscura Silver Coin 2006″ is in sale since Tuesday, August 30, 2016. This item is in the category “Coins & Paper Money\Coins\ World\Australia & Oceania\Other Oceania Coins”. The seller is “coinsberg” and is located in Kyiv. This item can be shipped worldwide.

• Country: Cook Island
• Year: 2006
• Face Value: 2 dollars
• Metal Purity: Ag925
• Weight: 10 g
• Dimensions: 30
• Quality: Brilliant UNC
• Mintage: 2500
• Box: Yes
• CoA: Yes