Filter Baader OIII - 04 November 2007
There is a new filter in my equipment. OIII filter is useful for observing and photographing emision and planetary nebuleas.
This kind of filter transmit light on 500.7nm wavelength. I have got it in 2" case.
There is a new filter in my equipment. OIII filter is useful for observing and photographing emision and planetary nebuleas.
This kind of filter transmit light on 500.7nm wavelength. I have got it in 2" case.