1. Guest,
    If you need help getting to know Xenforo, please see our guide here. If you have feedback or questions, please post those here.
    Dismiss Notice

Minimum viewing distance for 480p?

Discussion in 'Archived Threads 2001-2004' started by Ryan Patterson, Dec 16, 2002.

  1. Ryan Patterson

    Ryan Patterson Well-Known Member

    Joined:
    Nov 11, 1999
    Messages:
    105
    Likes Received:
    0
    I've searched forums and articles for a Critical Viewing Distance value for 480p, but so far I've only seen values for 480i, 720p, and 1080i. Living in Calgary without a satellite system dictates that all my viewing for the will be in 480p (progressive DVDs and upconverted cable channels) for quite a while. My viewing distance is 8 feet in the sweet spot and probably won't change for at least 2-3 years. I have a friend who has a Sony 57" 16:9 set, but unfortunately I never brought over a measuring tape to judge distance. My best guess was that I had to sit 10 feet away before I couldn't see any scanlines (I'm 6'1", and lying down between the TV and couch still left a couple of feet open, plus I added 2 more feet for when you sit back on the couch) This works out to be about 4.3 PH for my personal CVD... ie. a 57" 16:9 screen has a height of 27.9" so (27.9 X 4.3) / 12 equals approx 10 feet. Is this about right? I know that everyone's eyes are different and some sit closer/farther before scanlines become apparent, but since I didn't have a measuring tape, I'm just going by guesswork.

    If this is the case, then I'll be looking at getting either a 36" 4:3 set or a 46" 16:9 set, as anything bigger will produce obvious scanlines for me.

    Thanks in advance for your input,

    Ryan
     
  2. Dan Stone

    Dan Stone Well-Known Member

    Joined:
    Nov 28, 2001
    Messages:
    221
    Likes Received:
    0
    Ryan,

    I've noticed the same thing that you have about the lack of 480p in the viewing distance calculators. However, I do recall reading somewhere that for 480p the viewing distance should be five times the picture height, although this is purely from memory as I can no longer find the source where I got that info from. As it sounds like you're already aware, the formulas are nothing but a starting point and don't replace actually going to a store, having them play a progressive signal, viewing potential TV sizes from your viewing distance and then deciding what looks the best to you.

    Hope this helps.

    Dan
     

Share This Page