Curiously years ago there used to be an Adox KB25 of 500ASA speed (according to various Focal Press camera guides which I still have) but this seems to have disappeared by the wayside long ago. There was also a UKB17 Reversal film (80ASA)
Personally if I was after HP5+ I'd stick to the Ilford branded one because of its quality control. The Efke/Adox versions were finished & packed by Fotokemika in Croatia hence the different edge markings. Therefore with this you have not got Ilford quality control all through the process - enough said I think.
Personally if I was after HP5+ I'd stick to the Ilford branded one because of its quality control. The Efke/Adox versions were finished & packed by Fotokemika in Croatia hence the different edge markings. Therefore with this you have not got Ilford quality control all through the process - enough said I think.