So, looking for a bit of advice please as I’ve never been good with lens calculations and what is required.
My 35mm projector has been up and running for a while in the home cinema, but now looking at showing some cinemascope films.
Widescreen/flat features are projected fine but I have a small niggle when it comes to scope.
Currently I have a Kowa anamorphic lens (photo attached).
I also have a variety of lenses to use as the backing lens. These all came from the cinema the projector was originally installed in.
The only one that seemed to project a decent image is the backing lens with the following markings:
3.00 1:1.9 f=76mm
Photo of the projected image is attached below too.
Other ones I have produced a much smaller image.
Whilst this is still watchable, I would love to fill the screen out a bit more. (Maybe I’m being picky!)
So, I’m sort of guessing that the backing lens needs to be changed. Would love some pointers as to what size lens I need to look at.
Here are some measurements:
Also, what does the adjustment do on the front of the anamorphic? It looks like it’s measured in feet. I’ve moved this around but it didn’t really do anything to the image.
Help will be very much appreciated
My 35mm projector has been up and running for a while in the home cinema, but now looking at showing some cinemascope films.
Widescreen/flat features are projected fine but I have a small niggle when it comes to scope.
Currently I have a Kowa anamorphic lens (photo attached).
I also have a variety of lenses to use as the backing lens. These all came from the cinema the projector was originally installed in.
The only one that seemed to project a decent image is the backing lens with the following markings:
3.00 1:1.9 f=76mm
Photo of the projected image is attached below too.
Other ones I have produced a much smaller image.
Whilst this is still watchable, I would love to fill the screen out a bit more. (Maybe I’m being picky!)
So, I’m sort of guessing that the backing lens needs to be changed. Would love some pointers as to what size lens I need to look at.
Here are some measurements:
- Distance is 355cm screen to gate
- Screen height is 120cm
- Screen width is 220cm
Also, what does the adjustment do on the front of the anamorphic? It looks like it’s measured in feet. I’ve moved this around but it didn’t really do anything to the image.
Help will be very much appreciated
Comment