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The optical viewfinder on a digital compact camera includes an optical system that zooms at the same time as the main lens and has an optical path that runs parallel to the camera's main lens. However, it is small and the biggest problem is framing inaccuracy.

The second type shows in real time what is projected onto the sensor and can avoid the above parallax errors, which is known as "TTL" or "Through-The-Lens" viewing. However, it will shorten battery life. Besides, to frame accurately in very bright sunlight conditions may be difficult.

In terms of the third type, what the lens will project on the sensor is shown through a mirror and a prism so it has no parallax error. Unluckily, the LCD on most DSLRs will only show the image after it is taken and give no live previews because of sensor limitations. 

An electronic viewfinder (EVF) functions is like the LCD on a digital compact camera and shows in real time what is projected onto the sensor by the lens and allows you to frame more accurately, especially in bright sunlight.

In an effort to dispel the myth and minimize the limitations and inconvenience viewfinders shown in practical use, Wondlan creatively launched Panorama series viewfinders with outstanding performance and dramatically enhanced ability.

The main parameter of Wondlan Panorama series viewfinders

Magnification: 2.5 x  Screen Size: 3 inches (or less) Eyecup Diameter: 60mm  External Dimension: 110mm (L)*70mm (W)*60mm (H) Weight:100g 

For a specialized viewfinder, the shooting range, environmental adaptability, stability and the scope of use are among the most vital features that it should have. 

First, for shooting range, with 50mm diameter and 2.5 times magnification, "Panorama" series allow 3 inch LCD screen and via its magnified image your focus in shooting video become very simple and easy, because 50mm diameter lens is the largest of its kind product, which enables image display brighter without hidden corners. Additionally, 60mm observation port of "Panorama" series viewfinders also makes your view comfortable and convenient.

Second, environmental adaptability, it can get you rid of the bother of strong sunlight when the DSLR camera is used in the open air to ensure the shooting accuracy and smoothness. At the same time it simultaneity catches images that come into the machine, nearly without sensor limitations.

Besides, a set of light and small aluminum alloy brackets are optional, allowing quick and effective adjustment to every direction, up and down, back and forth, left and right. Third, designed photography-oriented but not specifically for video capture, SLR cameras should be hold with both hands and away from body, which cannot be supported by the third point, and then no stabilization in capturing video. However, with mounting the "Panorama" series viewfinder, both hands and eyes become three points to guarantee video capturing stable and aesthetic.

Four, "Panorama" series viewfinders can work with Wondlan Sniper series or various tripods, allowing your video shooting more convenient and steadier. The switchover base can be fixed by DV screws to be connected and used together with other equipments. a set of aluminum alloy bracket is optional (including a switchover base). It is the only viewfinder suitable for all branches of 3 inch screen DSLRs among products of the same category.