While waiting for the projector I just did some quick measurements, and looked a the projection calculator at projector central.
If I am correct reading the Sony manual that distance from center to front of the lens is 10.5", and roughly checking the distance from center of my projector mount to screen (about 11' 6"), that leaves me with about 10' 7" distance from lens to the screen. Screen is 120" diagonal.
According to the projection calculator, for a screen of my size, minimum distance at max zoom is 11' 10", so I am about 1' 3" short.
I see several options:
- Push the screen further back (it sits on a TV stand so move-able), but I only seem to have a foot left behind the screen, so will likely end up short anyway, and even if I didn't it would be a nightmare to do any cable work behind the receiver, so this alone is a no go.
- Move the mount further back - My mount is screwed into a piece of lumber (2x4 or similar), that I have screwed between two attic joists. I'd have to remove the mount, spackle holes, go in attic, move the 2x4 board further back .. AND .. re-fish a new and longer HDMI cable through the wall. Current cable length is 20' and is barely reaching. I'd need at least a 25'.
- Make the screen smaller, it's DIY, so I could just unstaple, build a new frame and re-staple into a smaller size. The min distance for a 110" screen is 10' 10" so I could just move the screen further 3" back and have it ready to go (though at max zoom)
So, what do you think is worse
- Downsize screen (from 120" down to 105-110" and use max zoom on the projector). I'd need to build a new frame.
- Keep screen as is, move projector mount back, but I'd need to buy a new and longer HDMI cable, I'd say at least 25', maybe 30' (up from the current 20').
Which one would you say is the best way to go here ? I am slightly leaning towards smaller screen size, but if you think max zoom may make the picture worse, I'd maybe consider moving the mount back, but then I wonder if the longer HDMI cable might also have negative impact on picture quality.
To be honest even if I just go with a smaller screen size, the HDMI cable length is so tight that with the Sony being larger than my previous projector, I may need to replace that cable anyway.
Not seen on the picture below, but I have plenty of room to move the mount further back, there is almost 10 feet from the mount to the rear wall.
Also not seen on the picture, but the mount is currently just slightly behind the sofa.