Optical Vision 1.25 Inch Hydrogen-Alpha CCD Filter
This product is in good stock and is available for dispatch in our normal delivery timescales.
Order in the next 12hrs 53mins for delivery on Saturday, 23 September
This long-pass filter limits transmission of light with wavelengths longer than 650nm. Whilst suppressing all other polluting lights, the filter allows you to observe emission nebulae with greatly enhanced contrast. Ideal for observing emission nebulae or objects that emit in the H-alpha region. Suitable only for CCD photography. Threaded to fit standard 1.25” eyepieces. More