I'm a big fan of Peak Design bags. I've had the everyday backpack 20l for the last 2 years or so and it's just such a nice bag. Certainly not cheap, but after years of Lowepro bags I just love how it doesn't scream CAMERA BAG while also being the most functional camera bag I've ever owned. Over the last two years I've complimented it with the everyday sling 5l and the everyday sling 6l, and it's been perfect for all my gear. But in the last few weeks I picked up the Sony 200-600 for wildlife photography and needed a solution for carrying it. 

There are a few forum posts in corners of the internet with people saying 'the 20l might hold the 200-600' or ' you'd be better off with the 30l', but no one had put together a video for me to view for myself. So I did the honourable thing and bought a secondhand 30l to do that very test. Now I've watched many YouTube videos and seeing all those beautifully polished videos with jazzy graphics, smart lighting and different angles and shots made me think - what YouTube really needs is a poorly lit, monotone, middle aged man fumbling in front of a fixed position iPhone :) After getting all the gear out I also got a bit carried away with these poor quality videos, so there are four to enjoy/endure...

First up, the Sony 200-600 in the 20l and the 30l

Spoiler - the 20l will hold it, and the 30l won't hold much *more* when the 200-600 is in there, but it's just more comfortable in the 30l. I might consider the 20l if I'm only out for an hour or so and gear will be safely in car boot or back at home in between, but I just think everything is safer in the 30l. Plus, the 30l allows one of the inserts to be position as a 'shelf' towards the top of the bag. I'm keeping the 30l because if I ever do go away somewhere for a few days and intend to take the 200-600, this is the bag I'll use to safely carry it. I will be ordering another of the origami style inserts for it though. Neither bag will take the 200-600 horizontally (apologies, I forgot to show it on the 30l segment but can confirm it's not even close to fitting

Next up, and this a setup for the 20l with 200-600

 A few minutes after doing the 20l vs 30l, I was still slightly on the fence about the 20l and 200-600, so I had a try setting up the bag as I have had it with the 100-400 and 1.4x TC and a second body with wider lens. It's not a dreadful setup as discussed above, but I do miss the 'shelf'. This video shows how neither body is protected from above in this setup.
 

Then I decided to update my video of 2 years ago showing the 20l with my normal weekend away gear

This is the 20l taking A7iii mounted to 135, 1.8 Laowa 15mm f2, Sony 35 f1.8, Sony 50 f1.8, Sony 85 f1.8, Sony 100-400, Sony 1.4x TC and Nisi 100mm filter case. This bag is just a dream and perfect for those pocket rocket primes.
 

And finally, a video showing off the Peak Design everyday sling 6l

 Having done the video above I wanted to quickly show why I think the everyday backpacks pair nicely with the Peak Design everyday sling 6l. While the backpack will get all your gear somewhere (a hotel, holiday etc,), the sling is the bag I generally load up with 3 lenses for a day out with the family. Perfectly holds the A7iii with 135 mounted and room for any two small prime/zooms to the side. Worth noting the old 5l sling CANNOT do this.