
This means there are really only two compartments capable of taking larger 35 mm DSLR lenses, with filter threads up to 72 mm. Larger pro AF lenses using 77 mm threads and larger, wont fit. The smaller compartments would be fine for some of the smaller Leica M lenses, or indeed the Micro FourThirds lenses. That said, they're still a tight fit for the Olympus Pen 14-42mm zoom. I found they fitted a Ricoh GRD III I was testing perfectly and there was room for the 21 mm conversion lens, stored separately above too.

Between the lens dividers a separate closed-cell articulated flap can be positioned using a strip of Velcro. I used this to lay a Canon EOS 7D body flat (facing down so the dust falls away from the sensor) on the floor with the flap over the top allowing for a second body (in this instance a Pen EP-1) with 17 mm pancake a viewfinder to sit on top. It could easily of been another 7D body, or you could drop a 1D body in upright instead.
Negatives
Stacking equipment does have disadvantages; most notably you lose the quick unrestricted access to the gear beneath. And it’s always the gear beneath that you want, isn’t it? All the same, it’s barely an issue thanks to that clever zipped opening.

Front pockets are roomy for spare memory cards and batteries, even a field–recorder, but you’ll be surprised to learn these aren’t padded at all. To the rear is a document pocket up to A4 but better suited to US letter. Put anything else in it though, such as a pocket camera and it will be uncomfortable. Still for what it was designed for it’s handy. My only other slight concern is the arrangement of the grab handles. Like the original series, including my old 445, it has more than it really needs. The 307 has four; one pair made from webbing attached to the rain flap, and another set underneath. This second set, made from leather, is used when the rain flap is folded back.
It’s a different arrangement to the original bags, where the main grab-handle with leather pad was attached to the front and would be used with either the single webbing strap under the flap if it was open, or with an identical webbing strap on top of the flap if was it closed. If you’re used to the original layout of handles it can be a trifle confusing if not, it’s something you’ll likely never notice. Just make sure you pick up the bag by the shoulder strap, if you’ve not fastened the rain-flap securely, as the bag will tip forward abruptly.

Conclusion
With really only the rain-flap’s grab handles as a minor shortcoming, there’s still a lot to like about the Billingham 307. At around $435 / £239 inc VAT, it’s a pricey option, especially when compared with those sourced from the Far-East. Be that as it may, I really don’t know of any other make of bag that’s likely to out-last it. With that in mind, if the 307 lasts only half as long as my old 445, I would say that would be money well spent.
For US and Canadian visitors, buy Billingham product through our approved supplier, B&H Photo.
Update 09/10/10: B&H Photo now list the Billingham 307 in khaki and black.
Amazon US list the 307 in khaki and black.
Billingham product can be be bought via Adorama.
UK readers can buy Billingham products through the following:
Jessops (not a stockist of the 307 but they do have the superb Hadley Pro and Hadley Small Pro) I still have a pre-production one of these from the mid 80s, in bottle green and tan, with no label or padding.
Warehouseexpress (WEX Photo and Video)
Billingham 307 black
Billingham 307 Kahki (as reviewed)
Billingham 307 Sage/Chocolate
More information can be found at the manufacturer's site, www.billingham.co.uk
Amazon US list the 307 in khaki and black.
Billingham product can be be bought via Adorama.
UK readers can buy Billingham products through the following:
Jessops (not a stockist of the 307 but they do have the superb Hadley Pro and Hadley Small Pro) I still have a pre-production one of these from the mid 80s, in bottle green and tan, with no label or padding.
Warehouseexpress (WEX Photo and Video)
Billingham 307 black
Billingham 307 Kahki (as reviewed)
Billingham 307 Sage/Chocolate
More information can be found at the manufacturer's site, www.billingham.co.uk