CurtPalme.com Home Theater Forum

jeffslife · Joined: 17 Apr 2010 Posts: 4190 Location: ohio usa

After football season is over I was thinking about taking another shot at getting my pj UP to 1080P, I LOVE the PQ I get now at 1080I , I really do. But you guys know how this disease affects us. MORE, BETTER ETC.
Well i was looking at PJ stats and noticed that it said I could lose sharpness at 1080P, and was wondering if it was worth
all the effort as it is not easy for me like it is you guys. I just dont have your know how in this area, when I tried last time
I gave up after about a week and SETTLED for 1080I.Don't get me wrong, I love my picture but the disease beckons....
All opinions will be appreciated.

gjaky · Joined: 05 Jun 2010 Posts: 2802 Location: Budapest, Hungary

What is your refresh rate with 1080I? Once on my marquee 7500 I did a comparision between 1080P@60Hz and 1080I@96Hz. The P wasn't bad, but the I was way much better looking, and even flickered less.

jeffslife · Joined: 17 Apr 2010 Posts: 4190 Location: ohio usa

I honestly dont know what the refresh rate is. I Dont even know how to check to find out.

garyfritz · Joined: 08 Apr 2006 Posts: 12088 Location: Fort Collins, CO

Then you're probably feeding it 60Hz. What's your signal source? Each source (PS3, BluRay player, HD satellite box, etc) can present a different rate to the projector.

ecrabb · Posted: Fri Jan 28, 2011 8:17 pm Post subject:

Here's the first question to answer, Jeff: Do 1080i scan lines bother you at your seating distance? If not, then you're setting far enough back you can't see them, and/or your optical and electronic focus aren't that good. In either case, there's no reason to go to the trouble of setting up 1080p and pushing to get everything optimized to show the difference between 1080i and 1080p.

So, can you see 1080i scan lines when you're in your sweet spot seat?

SC

jeffslife · Joined: 17 Apr 2010 Posts: 4190 Location: ohio usa

ECRABB,
No I dont ever see any scan lines, even when I moved the seats to about 12 ft away.
Normally we sit back almost 20 ft.
All I run into it is a BD and a OTA TUNER I have a sat box hooked up but its not HD so I seldom watch it.
I do get an occasional flicker on the BD. I wish I knew why.

**Curt Palme** · Posted: Fri Jan 28, 2011 8:33 pm Post subject:

Not that I'm an expert tweaker, but I put a Lumagen scaler into my system about 3 years ago, and fed it my 1080i/60 signal from my HD box and dialed my stock slightly worn tube 9500 in to 1080p/60. I can't say I saw a difference, but 99% of my time is spent repairing boards, not doing tweaking, so take my opinion FWIW.

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

jeffslife · Joined: 17 Apr 2010 Posts: 4190 Location: ohio usa

WOW, How close do you guys sit ? I thought 12 ft was pushing it.

**AnalogRocks** · Posted: Fri Jan 28, 2011 9:23 pm Post subject:

4 feet from a 5 foot screen, 8 feet from a 10 foot screen

garyfritz · Joined: 08 Apr 2006 Posts: 12088 Location: Fort Collins, CO

Depends on the screen size. 12' would be really close to Arnold's 26' wide screen. Very Happy

With my 100" diagonal screen, which is just about 87" wide, 12' is a bit too far for my tastes. 12' is 144", that's 144/87 = 1.66x screen width away. Many of us here sit at 1.4x (87*1.4 = 10') or so because we like a big, immersive image.