Originally Posted by
jib71
There are plenty of fanatical hobbyist photographers in Japan. I doubt that your seven lenses will raise an eyebrow. If you do face any questions, just stick to your true story - You're a professional photographer who happens to be visiting Japan as a tourist. You will not be doing any paid work. You enjoy photographing things. You aren't planning to leave any of your equipment in Japan. End of story. Don't deviate.
To put that in a perspective that a photographer understands when I go to the F1 in Japan it's quite common to see the spectators using lenses like a 400 f2.8L. 7 lenses and a mirror less body is very much in the 'travel gear' domain.