Reflecting Telescope (Reflector) + and -


	Reflecting Telescope (Reflector) + and -
	Advantages Allows all colours to be focused Mirrors can be very large Does not effect the light (going in/through it) gathers more light - larger objective aperture All wavelengths are reflected equally - Achromatic Reflects light with almost no loss of intensity	Disadvantages The metal coating of the reflective surface needs to be replaced after years of service. Must be re-allign the mirrors, whenever you clean it If not re-alligned properly can cause it too look blurry
	Evaluation

The metal coating of the reflective surface needs to be replaced after years of service.
Must be re-allign the mirrors, whenever you clean it
If not re-alligned properly can cause it too look blurry

Get Revising