Zoom
I bought the Baader 8-24mm zoom last year for wintertime viewing so I wouldn't have to remove my gloves when it's -20 deg to change lenses. Unfortunately though, because I was used to observing with 72 and 82 degree fov's, I found this lens to be very dark and narrow, and I don't really use it very often. On the plus side, one advantage to it being dim is that it gives very pleasing views of the moon, as it cuts down the light.
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