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This is more a question than a comment. I wonder if a larger field of view can come at the expense of contrast. I have in the past noted some more detail on faint galaxies with a 9mm plossl compared to a 9 mm Nagler. Does adding that extra bit of sky around an object bring in a bit more light and therefore decrease contrast? This is a question that comes to mind when I occasionally contemplate upgrading my 17mm LVW to a 17 mm Nagler IV.
Any thoughts would be appreciated.
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