Update: I ordered the Think Tank Streetwalker Pro today, after having several detailed discussions with them in email, and then calling them up. They were very helpful with my analysis of my gear, and my tripod. Here's the last email exchange, which has some good information for folks thinking about attaching a tripod to a Streetwalker (backpack, that is
):
I wrote:
> I've done some further calculations. Based on the claimed
> external height of the Streetwalker (17") and Streetwalker Pro (17.5")
> bags, and based on the height of my tripod with the head (26" total) and
> the calculated depth of the tripod "cup" that drops down on the Pro
> (estimated to be 1/3 the length of the backpack, or about 5.83"), I
> think I have determined that the tripod will stick up about 9" on the
> Streetwalker, and, on the Streetwalker Pro, using the tripod cup, will
> stick up about 2.66".
>
> Is it possible to attach a tripod to the Streetwalker (not Pro) and not
> use the front pouch for the feet? Will the tripod simply slip out of the
> two (2?) provided straps?
>
> It seems like some additional measurements on the Think Tank site for
> these bags (perhaps shown next to some standard tripods for height
> comparisons) would be useful.
>
> And is my estimate of the tripod cup size correct?
And Think Tank responded:
> Hi Andrew,
>
>
> Your calculations are pretty accurate. On the StreetWalker Pro the tripod
> cup hangs down 5 1/2" inches. Your tripod height of 26" will stick up
> approximately 2 1/2" from the top of the bag. If you were to affix your
> tripod to the StreetWalker without utilizing the bottom pouch for the
> feet you could use the two bottom nylon tabs to feed the strap thru. It
> will hold your tripod in place but it's not as secure as when you use the
> pocket. You will have to get a little creative as to where the strap
> feeds thru the tripod.
>
> I will pass along your message regarding having additional measurements
> on our site. We are currently working on a new and improved site so
> feedback is appreciated.
>
> Let me know if I can answer any further questions.
>
>
> Best,
>
>
> Francis
> --
> Francis V
> Product Specialist & Photographer
>