4, the surface is coated with aluminum film and aluminum oxide protective film
5. Realistic shooting effect: You can photograph planets
Description
1.Material: K9 glass2. Model: Primary mirror D114F900 with secondary mirror 25mm3, size: main mirror diameter 114mm, focal length 900mm, secondary mirror paraxial 25mm.4, the surface is coated with aluminum film and aluminum oxide protective film5. Realistic shooting effect: You can photograph planets