Hi, I've had this on my to-do list for a while now but it occurred to me, others may have tried this - so if you have, I'm curious what your experience was.
One of the standard recommendations for EAA is to use a focal reducer, for faster light acquisition, "closer to live" viewing experience and just plain better results (e.g. easier to stack and to plate solve). As a result, I am pretty sure I have never done EAA without a reducer, or I may have briefly tried it but it was during early experiments when nothing was working anyway.
My EAA system has been working fine for a year now, using approx. f/7 (0.7x FR with 8" Edge HD). I think I may have "done" all the big, medium, and possibly most of the medium-smallish galaxies visible from Colorado. (I am excluding ellipticals in which I have no interest). That leaves a few hundreds or thousands of small-to-tiny galaxies on my potential observing list, but many will be nothing more than a shape and one or two discernible blurry internal features. I'd love to see more detail on them, so I thought removing the reducer might help.
But then again, it might not. Perhaps the details I'm getting are limited by "seeing" or other things, rather than pixel size? Or even if it helps with resolution, cutting light acquisition in half means weaker subs, hence pushing the limit on mount accuracy (currently I use 12 seconds, might be able to push it to 20 on the Evo mount?), or, may need to increase gain so much that I lose details in a different way.
Any thoughts on using f/10 for EAA on small stuff? I'll probably try it in any case, but figured it wouldn't hurt to ask.