Think Tank Retrospective 5 Leather Shoulder Bag

I bought a Think Tank Photo Retrospective 10 in pinestone (no leather) around 2011. It's a great, well designed bag, but I wish I had gotten a slightly bigger one so I could carry my laptop.

No, I don't think so. I have the Retrospective 5 in black canvas and it comfortably fits my Fuji X-E2 w/ 18-55mm lens on it, plus my 35mm f/1.4 prime, and MAYBE one other small-ish lens (I only have 2). You could probably fit the 6D body with no lens on it, plus one MAYBE two lenses. Then again, I haven't crammed it full because I haven't needed to. The bag itself is very nice; the SoundSilencers are great, the bag itself is pretty unassuming, and there are just enough security pockets and flaps to store different things. I went to Japan and put my Nexus 7 horizontally in one of the front pockets, along with some gum, batteries, SD cards, money, passport (inner security pocket) in the other pockets. I was also able to fit the Retro5 in my Chrome Citadel backpack, serving as an insert when I wanted to have everything with me, and when traveling. All in all, a bit expensive for a small-medium bag, but I think it's worth it. Very well designed.

Will this fit a Canon 6D, spare battery, a 50mm f1.4, 35 f2 USM, and an 85 f1.8?