Dark-Sky Filter 77mm Slim nefa it allows you to increase

it allows you to increase the magnification of any eyepiece with the same barrel size that you already own

making it a reliable option for both planetary observation and detailed views of smaller deep sky objects

immerses you in a very comfortable ultra-wide field that naturally promotes relaxation at the eyepiece

and rich star fields with ease

Its 72 degree apparent field of view creates a wide and immersive viewing experience that helps keep objects in view longer while maintaining a natural sense of scale

Dark-Sky Filter 77mm Slim nefa it allows you to increaseUniversally applicable dark sky filter with 77mm filter thread for photo lenses. Particularly suitable for increasing contrast in aurora and deep sky photography. The wavelengths of 550nm (green) and 630nm (red), which are particularly relevant for aurora photography, are transmitted to more than 90%. A special feature of other so called CLS filters is that only the yellow light of the sodium line is effectively blocked at 590nmwill. This effectively