Quote:
Originally Posted by OneOfOne
They say "once you have had 2" you won't look back" but you bank account may say otherwise. They may give a brighter image if the 1 1/4 does not let all of the light cone through, so that may be one difference.
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2" EP will never be brighter on axis than an otherwise equivalent 1.25". 2" just allows a larger apparent field of view which is why you only need it in lower power wide FOV eyepieces. With 1.25" barrel the edge of the field would be cut off in these cases and you would not see the entire FOV.