Ian - I'm in Kyoto in Oct, but was thinking of taking the train up to Tokyo for a day or two, so I need a shortlist of vinyl/camera shops - please advise. Have you thought about going to the Tokyo Fish Market? I think they're be some fantastic photo ops there.
The fish market is great, but I haven't been up early enough yet to see it in full flow (it all happens around 5-6am).
Most of the used camera shops are around Shinjuku. Map Camera is the easiest to find, as it is near Yodabashi Camera, which is a huge shop, but two of the best (Alps-Do and one with a name I don't know on the second floor of a building near Map Camera) are harder to find. There's an incomplete list here:
http://photojpn.org/dir/listings.php?cmd=viewlistB&cid=152
Leica is not cheap here, it's much cheaper in the US or even London, but Nikon and Canon RFs, and medium format gear, are all at good prices.
As for records, depends what you're after. Disk Union has about 6 branches in Shinjuku, each catering to different genres. The progressive/experimental shop is good but mostly CD, the jazz shop is small, all vinyl, but has a good selection of stuff. The best Disk Union jazz branch is in Ochanomizu. (There's also a branch of Bic Camera here which is apparently good for second hand gear, I'm going to check it out today.) There are lots of other second hand record shops, but finding them is difficult, I'm struggling to remember where some of the best of them are myself (many streets in Tokyo are un-named, and many shops are hidden away in upper floors of anonymous buildings).
Normally Joel would be happy to guide you around the record shops, but he's been involved in a cycling accident and won't be mobile for a while, but if you contact him by PM with the dates of your visit I'm sure he'll be happy to give you some pointers when he's back online. I suggest staying in Shinjuku, as it's a good base to explore from and has plenty of cheap hotels. It's a great city but you won't see much of it in two days, it's vast.
Kyoto is a magical place, I spent a week there a couple of years ago and could easily live there. It has an allegedly very good record shop, although I didn't get to visit it:
http://meditations.jp/shopinfo.html
-- Ian