So I got me this wonderful Sony FE 70-200mm and dug up the only bag in my collection that can hold it with the hood attached, the Lowepro Stealth D400. After a few days of carrying that my back began to protest vigorously. And that seemed kind of strange because I had carried the same outfit in my smaller Lowepro Nova 190 without having trouble in the physiology department. Problem! What use is a great lens if you're not able to carry it? The bag was the only variable changed here, so it must be the weight of the bag itself. Took the kitchen scale and started measuring my bags. The D400 weighs in at 1.7 kg and the smaller Nova 190 is only 0.9 kg. The difference is the weight of the 70-200mm! I set out the door immediately to walk to my local photostore (yes a 5 minutes walk, isn't that great? ) armed with that same scale and found a bag, helped out by one of the people there. It weighs a mere 0.5 kg and can hold the lens, the camera with a grip and a few smaller lenses and stuff. It's a Peter Hadley Berlin 90 bag; never heard of that brand before. Loaded with the A7 + grip, Konica 40mm + adapter, Olympus 24mm + adapter and polarizers, grey card, what have you. There's even space left for another small lens + adapter. Camera taken out, upper right is the Olympus 24mm. BTW, the Meike grip shown here is about 100 g lighter than the Sony grip! Just saying... The moral: if you're concerned about the weight you're prepared to carry, don't forget the weight of the bag itself!