ViewSonic 3600 Lumen HDMI Projector (S&D

I will be projecting in a couple of weeks in a dining hall where the entire west end is a glass wall (with no shades or curtains), so there is a lot of ambient light - especially after our noon lunch! I received the projector, unboxed it (it was well packed, including two batteries for the remote), powered it up and was rewarded with a nice bright display. (After powering up, wait about 20 seconds for the full brightness. Also - you can make it even more bright and increase contrast and sharpness through the on-screen menus.) Very basic adjustable feet allow fairly limited vertical/tilt movement of the projector. You may need to use books or other objects if you need it aimed more upwards or downwards. Keystone corrections worked well. At different vertical angles of the projector, I was able to use the digital keystoning to get the image squared up with no problems. (I use a portable projector stand which allows me to pan and tilt the stand and projector easily.) Optical zoom and focus worked well - I tested and got about a nice 9-foot-wide display on a screen with the projector located about 15 feet back from the screen. Based on my very quick and rough testing, for about every 3 feet of horizontal displayed data on the screen, you need the projector to be about 5 feet from the screen. I used an HDMI connection to my laptop as the source, and got very good, clean and sharp displays. Back to the brightness - I tested this in our dining room at 1 PM where the entire wall behind the projector was glass with no drapes or other shading, and the weather was clear and very sunny. The picture was quite clear and definitely bright enough for my audience in a couple of weeks. I am keeping the box, as it is a good size for carrying the projector - otherwise I would need to get a padded bag to carry it. The projector itself is quite light and easy to pull out of the box one-handed and set on the projector stand or table.