Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Prism beamsplitters are characterized by: the resulting light area is not equidistant, the red area is small, the blue area is large; resolution is also small red area, blue area is large; light transmission is good; Spectroscope is an optical instrument designed according to the principle of light refraction and color formation. Grating beamsplitter is characterized by: the light area is equidistant, red light resolution is the straight prism beamsplitter; poor light transmission, need to be irradiated with bright light., Manufacturer: Akfldms