I've bought too many bags trying to find just the right one.... I don't think it exists
. Anyway, I've considered very seriously to have a leather bag custom made in the smallest and lightest design to carry the M240 with a lens mounted and perhaps another 4 lenses plus the extra battery, small lens cleaner and an extra SD card... However, I can't find anyone to make it so far. I pulled the trigger on a ONA leather Bowery bag but the seller backed out.
I had purchased a nice looking canvas messenger bag from eBay months ago. I liked it for the style and relatively good quality construction. The size was about right to carry my M4/3 camera and lenses, and later the M240 and lenses, etc. However, t was just a big bag without any padding or dividers. I tried some DIY solutions, but they really did not work well. Anyway, while shopping online for another On a Bowery bar, I saw the Koolertron padded camera insert with dividers and bought it on impulse. I thought it might just fit the canvas messenger bag and solve the problem.
Anyway, it worked pretty nicely. With the dividers in place, I can carry the M240 with the 24mm f2.8 mounted as well as the 50mm f1.4 Lux, the 35mm f2 Cron, 90mm F2.8 Elmar and the CV 15mm f4.5 *and* the extra battery, lens cleaner, EVF and a few other small items. I still want the On a Bowery or my own custom made bag. But for a few dollars I have a pretty usable and not too bad looking bag
. The insert cost about $15, and if my memory serves me, the messenger bag was under $30.... For reference I laid a 12" ruler by the insert in the photo.