SYSMAN_MK (13th February 2013)
If you now the calculations for a given projector and screen please add to this thread and in the future the info can be transferred to the wiki etc...
Hopefully this will help when people are looking for replacement projectors and can't afford a Casio
Projector make: Epson
Projector mode: EB-X12
IWB make: Promethean
IWB model: ProActiv 78
Distance from front of lens to board minimum: 2.4m
Distance from front of lens to board maximum: 2.9m
Here is a list of manufacturer throw distance calculators people may find helpful as well
Epson Projector Distance Calculator
NEC Projector Screen Calculator | Resolution & Image Calculator
Throw Distance Calculator : Hitachi Digital Media Group
Optoma EMEA: Distance Calculator
Projection calculator - CASIO Projectors
BenQ Projector Calculator
Projector Installation & Tools for Installing Projectors | InFocus
Acer - Projection Calculator
I did look at the Epson one and found it awful tbh.
The more useful info came from the user manual for the projector.
The other thing I don't like with most manafacturers tools is you have to pick a projector first, I want to be able to input my scenario and have it suggest compatible units.
Edugeek web project anyone?
I just use this one every time:
Projector Screen Size Calculator
It has never let me down, you select the make and model and then metric / imperial and either tap in what you want or drag the projector to play around
Those links are all great but recommendations on projectors that have been fitted would be great as real world examples can be more accurate than just what the calculators say
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