3D Bluray with 60Hz 1080p LCD Projectors? Not really.

Originally Posted by goldorak_20

Hi Guys,

I recently bought a panasonic AE4000, and am still eying the 3D world. I am mainly interested in 3D movies using a PC and dont have time for gaming.

Looking at the Bit Cauldron BC5000 glasses, do these work with 60Hz projectors, the ad on the bit cauldron webpage implies this implicitly (if i am not wrong, they do mention these work with 60 Hz).

so,

1 - are there 3D shutter glasses that can work with a 60HZ LCD projector and a PC with ATI card?
2- are these the BIT cauldron BC5000?
3-is monster 3D vision compatible? or only for 3D HDTVs?
4- would the experience be acceptable using 60 HZ for bluray 3D?
5-anyone knows about the price or availability for these glasses, BC5000 or other?

thnx

Originally Posted by goldorak_20

Thnx icester for the information. Now for the nvidia vision, this will not work as they need a 120Hz screen. I know i need a usb transmitter of some kind, that is why i was asking about the Bit Cauldron glasses BC5000, as i read that they might work with 60HZ. if i get this, then i might have a chance for Bluray movies, since i thought that 24 Hz is enought for 2D, so 48 Hz for 3D, and 60 Hz would be more then enough!!

Originally Posted by xhonzi

While it's true that 24 or 30 pictures per second per eye (aka 48 hz or 60 hz) is all of the video content you need for 3D, the powers that be have decided that anything less than 60 hz per eye introduces too much eyestrain and distraction due to the "flicker" of the shutter glasses (or polarity rotator). Hence the 120hz (60 hz per eye) requirement for modern 3D equipment.

Personally, I would probably rather watch some 3D at 60hz and deal with the distraction or eyestrain than watch no 3D since I don't have a 120hz PJ. But good natured people will keep telling me that I don't really want to watch 60hz 3D. And they're afraid of people passing judgement on "crap 60hz 3D" instead of giving "good 120hz+ 3D a try".

Originally Posted by walford

Since only 120Hz 1080p digital technology TVs or displays can display 3D content at 1920x1080 per eye at 60fps any display that can not match this will have less resolution detail per frame per second is not acceptable to me or IMHO is acceptable to most Americans.

Originally Posted by goldorak_20

If i want to talk logically and not scientifically as although i read few things but not expert. Since we can watch a bluray 2D with 1080p/24Hz, i believe with the right glasses, if each eye gets these 24Hz thus 3D/1080p/48Hz or 3D/1080p/60Hz, this should be "fine"!. Now the BC5000 although they mention 3D HDTV and 3D PC, they really dont mention only 120HZ specifically, they mentioned 60HZ several times, i wish they responded to my email. If the emitter linked to the PC that is sending the image to the projector can instruct the glasses to switch with the image at 60HZ, why would this solution not work? i am still not convinced however i repeat i am not expert. definitly 120HZ is better, and even 240Hz, but hey we want to make best use of our 1080p projectors as much as possible, we are not going to watch 3D movies every day, if my projector can give me one 3D movie few times a year, it would be excellent

I am inclined to remove the "not really" from the title or add a question mark after it until this is 100% proved wrong. if i had these BC5000 i would have bought them just for the test, use IZ3D drivers with an ATI card, and powerdvd mark2, Maybe dreams can come true well maybe they are not dreams

Originally Posted by goldorak_20


I am inclined to remove the "not really" from the title or add a question mark after it until this is 100% proved wrong

Originally Posted by cybereality

Even if you could run shutter glasses at 48Hz, which is doubt, it would probably look like crap. Although the image would technically be 3D, the flicker would likely be too much to stand and induce headaches. I think 85Hz is the bare-minimum for page-flipped 3D.

Originally Posted by xhonzi

I don't know, Mathew... I think reallife is a little hard to take at 15 hz per eye. I don't think what you're looking at matters so much, because at that rate you start looking at the glasses more than at what's in front of you.

Originally Posted by icester

You look at it many times with animated gif, movies flashing cursors etc. What hurts is the ambient flicker at low frequencies not the screen. You would have to watch it in complete darkness to get a headache.

Mathew Orman

Originally Posted by mrspeakers

Hm. It's been a while since I've studied flicker issues. The original 60Hz interlacing spec worked because old tv's used phosphors, which glowed after the electron beam charged them. They would slowly fade, and it was about 30fps where most people could detect this. in fact, the English PAL system went down to 25fps, but I was always bothered by the level of flicker. The goal was to fake the eye into thinking it was seeing 50Hz motion and relied on phosphor decay and the eye's ability to interpolate motion to make the 25 or 30 fps look like double the frame rate. In fact, 50 looked like hell to me, I couldn't stand UK TVs.

Enter the LCD shutter. Unlike TV's, the light is either present, or not. Ambient flicker with LCD glasses is pretty nasty because we now each eye seeing black 50% of the time which is acting like a strobe-light for peripheral vision.

I haven't seen science on this, but would wonder if the light/dark/light patterns accentuates sensitivity to display frame rate/flicker, as well.