I won't say the "d" word, but I will say that if you are hoping to do much DSO observing, you will be very limited in what you can observe visually with an 80mm aperture. I have an ED80, and whilst it works a treat for large open clusters and wide double stars, it is not much chop for seeing much else. I would expect you will get frustrated very quickly if you are hoping to see any detail in nebulae or galactic targets.
Having said that, either scope would be great for imaging.
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