Baader Planetarium 2" Green Eyepiece Filter - 500 nm Bandpass - FCFG-2

Description

Freedom from Ghost images, even when stacked. Striae-free substrates are polished parallel to 30 seconds to prevent wedge errors. Both faces feature the finest 7-layer hard multi-coatings with 0.25% residual reflections. No other colored filter on the market incorporates anti-reflection multi-coatings. Furthermore, these coatings vary depending on the filter in order to couple the coating performance with the filter curve of each color. This maximizes transmission while minimizing reflections.

Extremely High Transmissions deliver maximum contrast to highlight planetary details, even when smaller telescopes are being employed. The three Baader longpass filters (Red, Orange, and Yellow) have peak efficiencies of 98%, while the three Baader bandpass filters (Green, Blue, and Dark Blue) top out at 70%.

Carefully designed spectral characteristics. Baader 2" color filters are stackable without image deterioration or ghosting, for even more narrow passbands. You can also combine them with other Baader filters for many potential possibilities.

No reduction in sharpness, even at high magnifications or when using the filter far ahead of the focal plane (ie, digital imaging, or in front of a diagonal or binoviewer). 

Supplier SKU

FCFG-2

Shipping Restrictions

Only ships in contiguous USA.

What's Included

• Baader Planetarium 500 nm Bandpass 2" Eyepiece Filter - Green