This helps a lot - thank you! I’ve been looking at the EH412ST, EH460ST and ZH406ST projectors for mapping our home. I have an old Epson MG-850HD that I’ve done partial house video projection - AtmosFX ghosts and Nightmare before Christmas video excerpts on a section of our house but looking to cover the entire house this year.Hi Gregg, I may be able to help. There is a projector throw distance calculator that can be found on projector central. Here is the link:
Find screen size and throw distance for the Optoma EH412ST projector.www.projectorcentral.com
I just upgraded to an Optoma eh412st that has a .5 throw ratio. I used to have a Benq with a .49 throw ratio.
Entering the device type, I see that if my unit (with a .5 throw ratio) is 12'6" from a surface it will cover a 25' x 14' area. Of course the calculator doesn't take into account house mapping, so theoretically, you could double the distance and get: 25 ft away = a covered area 50ft wide by 28 ft high. Looks like a short throw is exactly what you need.
Hope this helps?
The EH412ST looks like the best mix of ANSI lumens (4000), contrast ratio (50,000:1) and bulb life for the price @ ~$1000 - great choice! The EH460ST is 200 lumens more but only 20,000:1 contrast ratio for ~$1250. The ZH406ST is Duracore laser-based with 4200 lumens, 300,000:1 contrast ratio and 30,000 hours life but costs ~$1600. Our house sits on the corner of a cul-de-sac so I’m debating getting two projectors to map the front + side and extend the image across the two projectors so effects and video can transverse both surfaces.
How is the brightness of your image on your house with the EH412ST and how far is the projector from your house? Do you have any light sources like street lights that you have to contend with? Thanks for also providing links to the various tutorials - lots of great info to review.