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Dive Into the Universe with the new Starry Night Pro 7
On a DSLR with a T ring
This All-In-One design marries high-quality components of adapters
Compatible with the Interference Eliminator
The fully optimized design eliminates the need for any adapters
Daystar Off Axis ERF 115mm with 410mm Cap - E-410F115 Dew Shields By Size_6” Dive Into the Universe with115mm ERF Glass & 410mm Cap Off Axis For SCT Daystar Energy Rejection Filters (ERF) reduce the heat load on your filter and optics assembly by absorbing reflecting UltraViolet and or Infrared light while transmitting light in the desired visual spectrum. These filters are sometimes Red or Yellow glass, or dielectric IR and UV, but pass light in the desired visual spectrum. The ERF can also serve as an aperture mask to accomplish a straight angle of