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A guy at my local astronomy club in Tucson told me to stop shooting at f/10 and just buy a reducer, and I'm still thinking about it
He showed me his shot of Andromeda taken with a 0.7x reducer and the difference in exposure time was wild, like 4 hours down to 40 minutes. Is a focal reducer really that big of a deal for deep sky stuff, or was he just trying to sell me something?
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