Feature(may vary by option.)

●Eliminates false colour from standard two-lens refractors and shows the true sharpness of the image
●Eliminates the damaging blue defocused haze when looking at the moon, planets, sun (!) and the earth
●Planoptically polished surfaces mean the filter can be used to guarantee the sharpness of the image as a lone filter in front of binoculars or for afocal projection with digital cameras (far in front of the focal point)
●Box contents: Baader contrast booster 11/4", filter box

[1¼ ]

[2 ]

Description

- eliminates chromatic aberration from normal doublet refractors
- allows the real sharpness of the optics to come through
- plane-optical polished for he highest magnifications