Hello all again
Thank you for all the patience and responses! The reason I chose f8 vs f22 is for the reason I get from reading "Understanding Exposure" by Peterson. In the first few chapters he mentions f values of 16 or greater, but I found that at those aperatures, the corresponding shutter speed is too slow and I either need a bright environment and/or a very steady hand (ie small aperatures equals long-ish shutter speeds).
I will definitely be trying more experimenting! I have been trying to use my 50mm f1.4 at small aperatures but maybe this is not the ideal focal length for "landscape" shooting.