There’s no secret here, a lower budget means lower quality of material, including lenses. This effect can be mostly witnessed when observing the moon.Ĭhromatic aberration is mostly prevalent in low-end and medium-budget refractor telescopes. When this spectrum of light hits the focal point, the light rays (blue, green and red) do not converge at the same point, causing color fringing around the edges of observed objects and reducing image sharpness and contrast.
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