in answering to your question with regards to astrophotography,either scope will probably work, its the mount that will be the critical factor, in all honesty its a $ question the more you spend the better you get, my MINIMUM would be an EQ 6 and would have drives on both axis..... probably not what you want to hear but to get the pretty pictures is a very involved proceedure (guidescopes, guiding cameras or off axis guiders, cameras and the list goes on), if you are serious about taking pictures go to a club or a star party and absorb as much info as you can from others... look at the quality they are producing ..... before you part with volumes of money.
i learnt the hard way buying three scopes and mounts before getting results i was happy with.
on a less serious note welcome
