I can't access exhentai
If you get the Sad Panda screen, you need to register on e-hentai.org
Then a while later you get automatic access to exhentai.
Recently someone posted, somewhere on /g/, a link to an archive of e50gun drawings on some filesharing site.
Specifically to help those who can't exhentai.
(unfortunately I don't remember which thread it was)
I've been meaning to ask if anyone had a e50gun collection since he took the bulk of his work down from pixiv, but kkept forgeting. You are awesome! Thank you!