Quote:
Originally Posted by thegableguy
Yes, but from a section of the sky twice as large. The amount of light will be the same, but one is using a larger area to gather it and you'll get less magnification.
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It's the other way around...if both scopes have the same f-ratio, but one has larger aperture, the larger aperture will have longer focal length and consequently smaller FOV...effectively zooming in further, thus spreading the light from a smaller area over the sensor.