Monitor Refresh Rate

Scataphagos · Apr 3, 2012

Quote from Bolimomo:

"... Does refresh rate really makes such a difference in trading? ...Does it really makes such a difference seeing it 60 times per second versus 80+ times per second? You aint watching ESPN on your computer monitor of a base ball playing throwing a fast ball...

In my TV room, I have an older 60Hz and a newer 600Hz next to each other. I can't see any difference. No blur in either.

Kind of thinking the "# of Hz" is more of a marketing gimmick than reality.

(Somebody please educate me if wrong.)

Bolimomo · Apr 3, 2012

Quote from Scataphagos:

Kind of thinking the "# of Hz" is more of a marketing gimmick than reality.

Another one of those "hey... 600 Hz monitor specially designed for Day Traders?

Scataphagos · Apr 3, 2012

Quote from Bolimomo:

Another one of those "hey... 600 Hz monitor specially designed for Day Traders?

Yeah, I think there are some. Cost = 1 arm + 1 leg! But "really worth it for traders"...

Bolimomo · Apr 3, 2012

Quote from Scataphagos:

..... Cost = 1 arm + 1 leg! But "really worth it for traders"...

"You get it back all in one trade because you see AAPL price flashed 30c below the market for 1/30 of a second..."

The monitor pays for itself...

Scataphagos · Apr 3, 2012

Quote from AAAintheBeltway:

I reset one of my older screens to 60 and i could tell a difference. I'm not sure how big a difference it would be, but back in the day with CRTs, it would drive you nuts if they weren't running at 80Hz.

Yes, it DID make a difference. Seems there was flicker at 60Hz and no flicker somewhere around 70-75hz.

With newer LCD flat panels, it's common for the "only" choice to be 60Hz... at which there is no flicker.

Scataphagos · Apr 3, 2012

Quote from Bolimomo:

"You get it back all in one trade because you see AAPL price flashed 30c below the market for 1/30 of a second..."

The monitor pays for itself...

Let's see... (1) I'm going to see it, (2) know it's the correct play, and (3) be able to click the mouse... all within .03 seconds.

NOT EVEN WHEN I WAS 17 WITH A PERPETUAL HARD ON!

stock777 · Apr 3, 2012

Now bi-annual?

promagma · Apr 3, 2012

Quote from Scataphagos:

Kind of thinking the "# of Hz" is more of a marketing gimmick than reality.

(Somebody please educate me if wrong.)

It is even less evident on LCD's compared to CRT's, but a percentage of people (maybe 10-20%) can see the difference. I know I can tell instantly if an LCD is 60hz and it causes eyestrain. In general though, I am hypersensitive to sights and sounds, like my brain isn't properly integrating the image. I can't tell between 80hz and 120hz though - for me 80hz or above is all good.

vikana · Apr 3, 2012

Quote from Scataphagos:

Sometimes we perceive what we expect.

Cinematic film runs at 24 FPS because that's the slowest speed our eyes can perceive as "continuous motion". (Ever watch an old-time western and see wheel spokes on a moving wagon apparently "standing still" or even moving backwards? Has to do with the film's FPS and the rotation rate of the wheel being so close to the same.)

James Cameron (director of Avatar and Titanic) says, "there is perceivable difference between 24 FPS and up to 60 FPS".

IOW... between 24 FPS and 60 FPS we can perceive sharper image and detail. >60 FPS, our eyes can't see it.

So... what good is 120Hz, 240Hz, or 600Hz? Do we perceive them as "better" just because marketing tells us they are "better"?

("Using your head" is almost always a good thing.)

The actual issue is often that power, and therefore your lights, run at 50 Hz, and the brain picks up the 10 Hz the comes from the combination of the two signals (i.e. multiply two sine waves). 10Hz the brain can detect, but 110 Hz it cannot.

AAAintheBeltway · Apr 4, 2012

There is a difference between seeing moving objects on TV clealry and the issue with a monitor. On TV's that refresh as 60 Hz, fast motion can be blurred, making watching sports annoying. With monitors, it's not an issue of "seeing it faster", but rather of eyestrain from flicker.