The haze appears on the surface of the glass on the rear element, not between the rear elements. The haze is usually covered with an oily gunk. The haze can be polished off, but requires a properly machine. The glass is indeed "inferior," which is why it affects only 2 models of this lens, the f/1.8 and f/1.2. The f/1.4 and f/2.2 models are impervious to this problem, though they use the same lubricant. The 7.5mm f/3.5 Olympus Zuiko lens is also infamous for this issue.

kzfaq.info/get/bejne/nN6Ch9aZz5iqfGQ.html

You can use L mount lenses on M mount cameras, but not vice versa.

Sounds normal I think. Maybe look at a 7 instead, wider lines and maybe easier to see?

You can use an L mount Summicron, or use an M to L adapter (which are a little expensive).

@@japanvintagecamera8869 M to L adapter?

Only the super old ones. It's Leica Thread Mount not M mount. Voigtlander made some outstanding lenses for the cam too, as far as I know the most modern glass for these

Around one in ten Canon P cameras have this issue.

Thanks for your reply, I don't have a physical store in Japan, I work from my home. I can recommend some good stores if you are interested.

@@japanvintagecamera8869 can you tell me for buy canon p in Tokyo ?

Japan Vintage Camera could you please recommend me some stores in Tokyo/saitama/Kanagawa? Thank you

y2ktube Jesus Christ calm down 😂

Well, seems like this non licenced camera repair methods do work quiet good sometimes. Just saying

@@scheichi2000 Only by chance, I wouldnt risk my equipment to a so-called repair person with such an attitude.

Paying for the name

Yes, it actually works!

Écris bien putain c’est pas si dur

Seriously. I have worked on literally hundreds of these lenses, and have learned from experience what works and what doesn't. In the case of these Canon lenses, certain models used an inferior glass, solvent gases from the helicoid lubricant adhere to the lens coating, and eventually pass through it and etch the glass. For lenses where the haze is still only on the coating, they may or may not be cleaned chemically, those which are not must be cleaned abrasively, there is no other way to do it. I have used various lens polishing compounds over the years, such as cerium oxide or various aluminum oxides, but found them to be no better than ordinary toothpaste.

Usually these coatings,at least at the open surfaces were hardened,otherwise one could'nt clean them , so toothpaste without abrasives and gently wieder could work.But from my experience haze is mostly on the inner lenses so taken apart would require an optical Bank for readjustment.

Thomas D. McHugh The Canon P was mirrorless

@@TheDecguy I believe he meant a modern mirrorless p

a digital P maybe.. 👍

Ya one with old lens adapter too