gestione 299905: 2014

Opteka 500mm f/6.3 High Definition Telephoto Mirror Lens

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.

It has a fixed aperture of f/6.3.

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.

• Groups/Elements: 6/7
• Diameter: 3.86"
• Length: 4.7"
• Weight: 24.9 oz
• Front Filter Size: 95mm
• Max Aperture: f:6.3
• Min Aperture: f:6.3
• Angle of View: 5˚
• Minimum Focus Distance: 6.1'
• Manual Focus: Yes
• Model - MF 500mm f:6.3 Mirror Lens
• High quality crystal optics
• Fully Multi-coated
• Brand New; 10 Year Warranty

Included - Opteka High Definition 500mm F/6.3 Mirror Telephoto Lens, T-Mount Adapter, Pouch, Front and Rear Lens Caps.

Install Auto Focus Confirm Chip to my Opteka 500 f8 telephoto lens and shoot with handheld. It works perfect with the result of the images and still have to learn to program the data chip. All these bird's shots were taken with my Olympus E-620. The AF confirm indicator in the viewfinder lights up when something gets into focus. When the AF confirm indicator blinks, it means the focus point is too close or beyond range. AF confirm indicator will light up with a "beep" sound (only on the first time it gets focus). You need to 'half press' and hold the shutter release button while performing the focusing. Hopefully I can program all my manual lens to work with AF confirm chips and no more difficulties in getting focus.