I bought a used business projector (Dell 3300MP XGA) on eBay for $350 (MSRP $1600). This is my first ever projector and I've been wanting one since the mid 1990's (not even the debut of large ...

Anthony is a Toronto-based communications specialist with degrees in history and journalism who loves to use his research and interview skills to inform and entertain. He has over a decade of ...

We independently review everything we recommend. We may get paid to link out to retailer sites, and when you buy through our links, we may earn a commission. Learn more› By Lee Neikirk and Chris ...

Anthony is a Toronto-based communications specialist with degrees in history and journalism who loves to use his research and interview skills to inform and entertain. He has over a decade of ...

Projection lenses play a prominent role in modern society. When combined with a projector, these lenses allow people to view two-dimensional images on a screen by magnifying them and throwing them ...

If your projector is too low or high in relation to the screen, lens shift is a tool that can help. Video projectors offer a very different viewing experience than TVs, but that also comes with a few ...

The F-number of a photographic lens is a measure of its light-gathering ability, and is expressed as its aperture diameter divided by its focal length. Lenses with low F-numbers are prized by ...