If you are looking for a bag to carry a Sony A7 with the FE 200-600mm lens (SEL200600G) then look no further! The Think Tank Photo Digital Holster 30 v 2.0, does the job and then some!My Sony A7r iv and 200-600mm lens fit perfectly with the hood and the foot, and a hand strap and mount on the camera. The hood needs to be reversed and the foot needs to be indexed in front of the camera handle. Other note is the rubber lip on the hood makes removal somewhat sticky which can be resolved by putting a cloth over the hood before it is inserted. I used a pocket square from my nearby suit jacket, but a handkerchief or anything similarly thin should do the trick, or just leave the hood at home.The myrad of mounting points that Think Tank outfits this bag with provides for many different carrying options. I was able to back-sling this bag with a monopod attached during a recent outing and found it to be very manageable. Additionally, many pockets and straps for accessories are included for plenty of extra storage for batteries, lens covers, SD cards and other small items.Quality seems top notch. The zippers, hardware, and materials were scrutinized and I could not find anything to fault. Padding is reasonable and affords good protection. It seems perfect for the application, but is by no means drop-proof.A rain cover is provided as well, though for portability I tend to leave rain covers at home and instead rely on a couple coats of camp dry (https://www.amazon.com/KIWI-Camp-Heavy-Water-Repellent/dp/B000HJ7CLY/ref=sr_1_11?dchild=1&keywords=camp+dry&qid=1600199279&sr=8-11) don't get it near your optics though! :-) The only reason I mention this is that the fit is very awkward on this specific bag if you leave the rain cover in the pocket it comes in. Move it to the other pocket (or leave it at home) and the fit with this specific lens is much nicer.As a bonus this case works well for the FE 70-200mm (SEL70200GM) as well! Expanded it can hold the SEL70200GM with the hood mounted for quick shooting, or the hood can be reversed (or removed) and fits in the bag in its retracted state. I imagine any lens in this size range such as the FE 100-400mm (SEL100400GM) would also work well with this bag.If you have a Sony A7 (ILCE-7RM3, ILCE-7M3, ILCE7RM4, etc.), and any sort of tele lens, the Think Tank Photo Digital Holster 30 v 2.0 is a great bag for the job!