I've been thinking about simplifying my kit, having too many lenses and options just makes things confusing. I currently have the em5 mark ii with a 45mm f1.8, 25mm f1.4, 17mm f1.8 and a Ricoh GR which is a 28mm f2.8, and somewhat close to the Olympus 17mm. I love the Panasonic 25mm, it's probably my favourite lens, the "character", sharpness and depth of field capabilities are really nice. The 17mm f1.8 is good, but not great, it's not as sharp wide open and the focus scale doesn't work which is disappointing. However I still use it a lot because of the small size, versatile focal length, and the fact that it looks nice on the omd. There's quite a good deal on the Panasonic 20mm, I was wondering if it would be enough to replace these two lenses. I really like the pancake form factor, but would I miss the DOF abilities of the 25mm, even though I have the Olympus 45mm? I know the focus speed is a lot slower on the 20mm, but is it slower than a Ricoh GR which I am very happy with? Most importantly, is the focus accurate? This way, I would have a versatile and compact 3 lens kit, 28mm, 40mm and 90mm. A simpler kit is nice, I would also be able to make some money by selling these. However, I must first make sure that the 20mm is not too much of a compromise.