What should this look like ?

Well the vectorscope only tells you color information.. for exposure (which effects brightness) i'd need to see the waveform monitor to the right.

However that can tell you white balgnce - with a shot of (only) something white you should get a dot in the center, if your white balance is off then the dot will be off center too.

But looking at that I can see that you have person in the shot.. they have about correct color, though slightly red; so i'm going to guess shot indors and they didn't have any makup on.
Something else red in the shot,and something blue. maybe blue jeans and a reddish shirt? - or more than likly the person is wearing a grayish shirt and it's a medium close up.
..Or they are naked in front of a US flag. :shocked:

Actually looking at what I can see form the waveform it's not a flag. At least on the left side of the frame you have something reletivly un-evenly lit that creates various tones from black to a mid brighness. - Maybe a multi-tonal background drop cloth? Or a dark (brick?) wall. - but almost definatly inside as there is no sky on the left of frame, or any sky blue in the shot. [vectorscope] (to remove the blue it would have to be overexposed but then the left side of frame would almost certainly be brighter.

- Mikko

P.S. ..who shot that picutre? ..there's a REFLECTION! :grin:
 
Is that DV Rack? Is there anyone out there who's editing on MAC but using DVrack while shooting? to monitor and check levels?

c.r.
 
nah its the vector scopes in Vegas. and yes i know theres a reflection, but my Digital camera has not Zoom macro so ifi back up, i cant focus on it... (its a piece of crap)

Thank you for the clarification.

I know the waveform monitor, but i just couldnt figure out the proper way to use a vector scope.


Also im sure if you used a PC laptop to captre video and trandsferred the AVI files you wuold do fine.

i move Avi between my friends MAc and my PC all the time.
 
soo.. lets see... what was in the frame for those scopes?!?

Peroper way to use a vestorscope: it's a colro wheel. In the middle is black, white and all the shades of gray. the furtout out (distance from center) you go the more "colorfull" ('Saturated') pixel in quesiton is, and the angle aorund the circle is the "color" ('hue') jus to teh lef tof top is Red, going around clockwise is Magenta, Blue, Cyan (light blue) Green, Yellow and then back to Red again.
Those bosex are the target areas for color bars. - When you pull up bars you shoudl just have a little dot in the center of each bo (and 2 in the middle, one for black and one for white.

Make a solid color, pull it up on the scopes, then apply a "Proc-Amp" effect and try playing with the "Hue" and "Saturation" controls ..also look at the Waveforma dn play with Brightness and Contrast.. educational stuff.

- Mikko
 
ahh excellent.

the frame was a close up of a guy cuttign hair, so it was mostly flesh tone with some "black " window background.

you were just about right. dude in a white tShirt.


thank you very much.
 
no problem. :-)

..I'm gad it wasn't the naked guy. :-P

hmm.. blue scisors? and maybe a red tally light reflecting off the window? (or maybe the other color is a combe of hair-clip?) ..ok, now I'm trying to show off ;-)

- Mikko "Real Techies don't need no stinki'n monitor, scopes will do"
 


its a quick cutaway shot from a Rap video i am workign on.

The rapper is a babrber so its gonna start in the barbershop, then they all break into song i guess.


oh damn i was wrong, its a white widow in the backgrounda nd the guy is wearing a black Tshirt.... sorry i swear iam not a liar, lol.
 
oooh. Tatoos... :)

Well you can see the underside of the cutters arm is making that range of dark shades, along with the tatooes.. and about the only colors in teh tatooes are the flames which bring is that red and yellow (yellow not visible of the scope cus it's hiddin in with the skintone-- which is about right on) and a little bit of dark blue.

Yeah the shot's good, and the scopes reflect what they shoudl for that shot.

..Not so sure about focus though.. :happy:

- Mikko
 
Vectorscopes are used in combination with test signals (colorbars) in order to verify the chroma properties ( chroma amplitudes, hue, burstphase...) of video signals. Though they are not meant for other uses, they can be used as a 2-d chroma distribution chart for comparing real pics. Also whitepoint shifts and picture noise can be evaluated/compared based on the fuzziness of the color locations.
 
Andre, as anyone who has worked as a broadcast engineer (as I have) will tell you; colorbars are great for testing, and a good reference for quick matching of settings on a scope. But many engineers will actually shuttle into the actual video of a program to set the levels (of the Proc-amp) using the scopes. A good engineer can trim all 4 settings to their corect levels in under 5 secconds while a show is on the air.

Also bars are used on set when shooting: in single camera to ensure good levels and lighting. With chromakeying to insure correct key lighting and color. And ALWAYS in multi-camera production to adjust live cameras to each other.
And of course they are used extensivly in editing to view the levels of the images to give actual values to the content of a picture and adjust accordinlg for Color correction. - Notice how most every (respectable) NLE has scopes? (or teh really high end ones presume you have external, real, ones.

With any image adjustments you can do 'ok' with your eyes and a monitor, but ONLY a scope will tell you for CERTAIN what the image is dooing.

My coment about real techies not needing a monitor was BPP, we actually use a monitor to give us the context by which to view our scopes.

Scopes came first, then they invented colorbars, and many other test signals, as a quick and handy way to give a *repeatable* electronic patern to the scopes.

- Mikko
 
mmm, they are actualyl a huge help. I love my waveform monitor.

The vector scope is still a finess thing, you have ot learn what youre looking for to be able to use it. i am still trying to ge the hang of what exactly "properly adjusted" footage loosk like.
 
x2mag68 said:
i am still trying to ge the hang of what exactly "properly adjusted" footage loosk like.
Click to expand...

Used technically the scopes are an absoloute measurement tool, but used artistically they are of course subjective. - (Provided you are within technical limits) there is no such thing as 'properly adjusted' :thumbsup:

- Mikko
 
oh dude.... music to my ears.......


so lets say, a Broadcaster said, Red cant be above X amount... Vectorscope itto see how mch red i have? ??? Hypothetically speaking
 
Yup :-)

..though normally a broadcaster will accept anything that is "broadcast legal" (and within their other standards).
That means that is within the limits set by the standard in question. (so normally between 0 and 100 IRE (NTSC) or % (PAL) on waveform, and [generally speaking] inside the outer circle of the vectorscope.

Often the technican will adjust the seetings at their ingest(input/preperation) of the material to what they consider "correct" (so if a person looks a little green, they'll 'fix' the hue) - So if you want somethign a little whacky on purpose, throw in Bars on the head of the progam (that match the scopes for your editor) and attach a note to the material sayaing something to the tune of "Adjust by color bars - material has intentional hue/chroma [etc] inconsistances".

Here's another example of scopes in action:
First look at the bottom of this page: http://www.rosco.com/us/scenic/chroma_key.asp - notice what it says about the phase of the paints in the chart?
This page takes it one step furthur: http://www.rosco.com/us/scenic/digicomp.asp - that SHOWS (as well as listing) where the colors will be on a scope for keying.
Thanks to standards and scopes, you can look at this and know EXACTLY what it will look like in post after it has been shot! - You can even use it to pre-generate the exact color (keyer allready set up for DigiComp but want to do some keying from a 3D moddle? well now you can make the right colored "green screen" in your favorate 3D program!)

- Mikko
 
damn man. You should write a How to for Vector scopes and adustment properties. we'll campaign Jared tomake it a sticky. Cause i thikn too many people are just arbitrarily altering video, on their PC monitors and throwig the blacks too far down and what not.

Ever since i learned to use the Wave form, i have been haing much more pleasure CCing because it looks right on my burned Dvd's.
 
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