Peter Parker
Distinguished Member
I had posted a question regarding 12ft lamberts on the digital forum on avs, and it occured to me that I wan't sure how you guys would go about doing this with a CRT.
At the cinema they should (but don't always) set the projector up so that without film in the gate, you will get 16ft lamberts of reflectance from the screen. With film in the gate, it should be around 12ft lamberts - I assume for a full white field.
There are various ways of doing this with a digital pj and I think this is imperative IMHO or the image can look more like video than film.
It's less critical for a CRT, but how would you set a CRT for this level of reflectance? Can you drive the tube contrasts to get a certain brightness level and how does that correlate to setting the white levels with a test disk?
Gary.
At the cinema they should (but don't always) set the projector up so that without film in the gate, you will get 16ft lamberts of reflectance from the screen. With film in the gate, it should be around 12ft lamberts - I assume for a full white field.
There are various ways of doing this with a digital pj and I think this is imperative IMHO or the image can look more like video than film.
It's less critical for a CRT, but how would you set a CRT for this level of reflectance? Can you drive the tube contrasts to get a certain brightness level and how does that correlate to setting the white levels with a test disk?
Gary.