that is the greatest video how to clean the lens, but it is pity that the actions were out of screen, I can't see what the minor adjustment on the plastic components to press the aperture blades metal ring! I can finish these step, but the aperture blades will drop very easily when I try connect the small spring spring!!

Commentary is kind of essential on this. I do not feel brave enough to take mine apart to fix it without reassurance I am getting the steps correct such as what chemicals to use and what to look out for when dealing with such intricate fragile parts as the iris blades.

Impecable!! Gracias!!

thank you

wenn ich Musik hören will geh ich ins Konzert, warum gibt es hier keinen Kommentar ?

Would be great, commenting what you are doing and what to look for and avoid and so on.....

What sort of grease do you use to lubricate the lens? Can I use alcohol to clean the blades? Thanks

what is your email info? I have lens questions and service repair

I have a 35 f2.4 that needs cleaning, can you send me your email. Thanks