BAADER 2" HERSCHEL PRISM MARK II GPS To lock the adapter in

To lock the adapter in position

2" visual back

so that the ideal focus point doesn't change too much from the original design

low-power consumption stepper motor drive system

purpose-built Solar telescopes

BAADER 2" HERSCHEL PRISM MARK II GPS To lock the adapter inThe Baader 2" Cool Ceramic Safety Herschel Prism Mark II is a 2" diagonal designed to give uncompromising white light views of the solar photosphere. Both Visual and Photographic versions are available with neutral density filters of varying strengths depending on the application. No additional front mounted rejection filter or solar film is needed with standard refractors to safely observe the sun when using the built in ND 3. 0 filter. Warning: