[lazjen (Chris)]

I've got a Sharpstar 107PH (FL 700mm, FR 6.54) but I am now thinking of getting something with a wider field (maybe around 400 to 500mm-ish?) and faster FR. I've tried various reducers on the Sharpstar, but I've never been really satisfied with the results.

I'd like to get a scope (refractor only) that has an imaging flat field for full frame - for the future, as I probably won't start with that at first.

What are my choices? And what other things do I need to think about? I've started googling, etc, but it's a slow process trying to work through the spec sheets looking for details. I thought I might get a bit of a list first and go from there.