Filmshooting

In Europe is used what they call a magnifying lens + 3, in combination with the mirror.

Are we talking about the same kind of lens or is there a difference between the plano convex lens and a magnifying lens

I suggest you contact Bolex Switserland .
They are still in business and have a web site.
They sell parts for the Bolex equipment and they could guide you which grease to buy. You can contact them in english, french or german.

I use Edius 4.6
Till 4 months ago I used Matrox RT.X 100 Xtreme

Somlething I want to add : Please see also on this forum :

Telecine condenser lens supplier

where you will find a lot of info

I am considering to build the same set up. But I would consider a larger lens. Companies who sell the system use a 5 inch condenser lens. According to what i read in this forum a condenserlens is the same as a plano convex lens or a field lens.
Do not forget to change tha lamp in your projector for ...