I use a .50 ammo can as my camera storage case and this insert is PERFECT for storing my Canon SL3 DSLR and spare lens. I love the functionality of this case. It features multiple dividers that attach very securely with Velcro, allowing you to customize the internal compartments to your liking. It's large enough to hold most medium-sized zoom lenses (300mm or smaller, I would guess) detached from the camera body. My camera fits perfectly with a 4-5 inch (10-13 cm) lens attached and then I can tuck my larger zoom lens alongside. There are also several outer pockets and a zipped pocket in the lid for storing lots of small items. it also has an integrated handle (the bag needs to be zipped up!) The great thing is that you can slip the insert into ANY bag or luggage. You are not tied to a specific camera bag.
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