CurtPalme.com Home Theater Forum

quest_enterprises · Joined: 14 Feb 2008 Posts: 93 Location: Marion, Iowa

Can A G70 do 1920x1080?

draganm · Joined: 08 Mar 2006 Posts: 8990 Location: Colorado

1920 x 1080i or P

ecrabb · Posted: Thu May 28, 2009 3:14 am Post subject:

A little basic stuff... "1920x1080" can refer to both 1080i and 1080p. But, since 1080p is all the rage, I assume you mean 1080p. Also, the word "do" can mean different things. "Do" could mean "will it display", or it could mean, "will it fully resolve".

To answer your question, though... I watch 1080p from Blu-ray pretty much exclusively on my G70. The G70 (like the NEC XG) won't fully resolve 1080p, but it will do a hell of a good job. I have a reasonably bright, relatively sharp, clean, mostly artifact-free, and very film-like image.

SC

Delicious2 · Joined: 03 May 2008 Posts: 24 Location: MA

I always ran mine at 1280x720P 72Hz. Now I have a G90 and run it at 1920x1080P 60Hz setup by Ken Whitcomb. Sometimes I miss the motion smoothness of 72Hz though.

Kiev Savoie · Joined: 25 Oct 2007 Posts: 432

Ecrabb, do you find that even though it isn't fully resolved, the image is better at 1080p compared to 1080i on your G70? I still don't get what the big deal is between interlaced and progressive at the same resolution.

ecrabb · Posted: Thu May 28, 2009 9:13 pm Post subject:

On low-end machine like a 12xx or on an older 808 or 8500 with HD-8's... There is no difference, other than that 1080p is double the bandwidth, will run the projector harder, and will probably be softer. On a 9" machine or a sharper/newer 8" machine, and if you have a close viewing distance, you'll be able to see scan lines, which for some takes away from the experience. That's why I run 1080p. I sit close (~9' from an 8' wide screen) and 1080i scan lines are quite obvious. I don't like seeing anything that looks "video", so I run @ 1080p; that gives me a nice solid, very film-like image - which I love.

If you run at 1080i, you'll be watching a version that has both temporal distortion and spatial distortion. Temporal because of the frame mismatch between 24hz and 59.94hz, and spatial because some film frames will be progressive, and others will be interpolated. Some people notice it, some don't. Some systems show it better than others. 1080p @ 48hz or 72hz are the best because you can eliminate the temporal distortion that adding pulldown creates. Of course, that either costs money (processor) or hassle (HTPC), and adds either flicker (48hz) or softness on most machines (72hz).

I'd run 1080p@48, but I'm not willing to go to the expense or trouble... Any way I'd do it would take away from the usability of my system. I very rarely see the 24/60 judder, anyway.

SC

Kiev Savoie · Joined: 25 Oct 2007 Posts: 432

very interesting, thanks. i just got 2 G70's so the 1080p option is open to me. i guess you feel the electronics can handle the added load with out excessive wear then, am i right?