The EMC S100 Solar Filters are a range of objective solar filters for observing the Sun in white light.
The Bino 150 filter will fit dew shields / tubes with an outside diameter of 173-183mm. They can also be fitted so they clamp inside the dew shield. Each filter has a flat edge so they do not hit one another when mounted on binoculars with tubes that are close to each other. The minimum optical centre seperation for using these filters must be 186mm or the filters will hit each other.
These filters were specifically designed to fit the APM 150mm Binocular models.
Features of each filter are;
- The filter foil is clamped between two flat rings made of aluminum
- Full product range of 50 - 500 mm tube diameter
- Infinitely adjustable clamp on the tube
- No vignetting
- Delivery includes Baader Planetarium AstroSolar
- Suitable for large binoculars
- Flat side for use with binoculars
- Sold in pairs
Secure fixing of the Solar filter to the tube or dew shield consists of 4 threaded columns of polyamide with a precisely controlled clamping action. The filter film used is Baader Astro Solar which is known for its excellent optical quality and can be easily replaced if damaged.
We can as a special order, supply smaller sizes intended for outside mounting only for use with binoculars with roof prisms (2 required). The lens distance must be at least 66 to 78 mm. These sizes are special order and require details of the binoculars you wish to use.
Installation
The filter is usually mounted on the outside of the tube, which keeps the aperture of the optics completely intact. But it is also possible to use the filter inside the tube, thereby expanding the flexibility of the filters fitting options.
Delivery is standard with fully assembled film of density ND5 for both visual and photographic applications. For the same price, we can supply the solar filter with a film density ND3.8 exclusively for photographic use. This is a special order item and should not be used visually.
