I mean, it's heavy (~2.4kgs with prism, from memory), but it's fucking solidly well built. A better measure is how cumbersome it is, but that also varies depending on your level of 'dedication' - some people are fine with photos from their phone; some people lug 8x10's. I carried my 67 on my shoulder through Asia for 3 months and didn't regret it any more than any other camera. #anecdotal Yeah, my 67 came with the MLU. In daylight, I never stray under 1/focallength on any camera, and to be quite honest didn't ever go under 1/125th on the 105 anyway. If I did night stuff I'd have definitely used it, but if you want it as a daylight camera there's no need.