Getting a Sharp Image Streamed on Digi Projector

entrailer wrote:

Wondering if anyone knows of a good way to get a clear picture from a liveview camera? Have tried G9 and RX100vii as direct HDMI outs. Both result in very poor results, ghosted and fuzzy.Otherwise the projection res is good (with images in powerpoint etc).

Anyways around this, or more suitable kit? Might OBS be a good way to do this? Do have CAMLink 4K.

Do you have a 4K video projector?  I've been watching TV at home on video projectors for over 3 decades, and I don't have a 4K projector yet... because I needed a bright one to be able to watch during the day in a room with windows and my 4500-ANSI-lumens one is several years old; there are now some bright laser 4K projectors under $5K. Even if your camera feed is less than 4K resolution, most 4K projectors do high-quality interpolation that makes lower resolution video still look quite good.

Basically, I suspect the problem is that your projector happens to have relatively low-quality interpolation built-in. Video from cameras tends to be fed at whatever resolution the camera wants, and then the projector needs to scale that. In contrast, when a PC is hooked-up to a projector, it generally adjusts its output resolution to match whatever the projector says it does native. In other words, there's no interpolation on things like powerpoint slides, which are rendered for the native resolution.

So, what projector is this? What is the native resolution? Most cameras output video as one of the standard 16:9 resolutions, but lots of projectors have other aspect ratios and resolutions that require interpolation from the standard 16:9 resolutions.

In any case, this is not a problem I've seen with the 1080-native DLP projector I use to watch TV as a 100" wide image projected on a white wall. Honestly, things don't even look that bad with the sub-$100 LED LCD projectors I bought for hacking purposes last year. I'd suggest starting with looking-up your projector at https://www.projectorcentral.com/ ; they have a lot of detailed info about most name-brand projectors.