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Archive 2010 · ExpoDisc (Worth It or Not Worth It)
  
 
HerbChong
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p.2 #1 · ExpoDisc (Worth It or Not Worth It)


gray cards designed for exposure settings are seldom neutral gray. use one for a portrait shoot and you will usually regret it.

Herb...

ken.vs.ryu wrote:
gray cards are $1.



Jan 14, 2010 at 06:59 PM
nilo4fm
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p.2 #2 · ExpoDisc (Worth It or Not Worth It)


Although I have the expodisc for a couple of years now, I only used it in few occasions. I was shooting mostly landscapes around sunrise or sunset and I was usually after vivid than accurate colors.
In one occasion I had the expodisc with and since I went for the sunset shot pretty early, I gave it a try in a nearby rock. The rock was forming a cave and this is the inside so there was no directional light from the sun.

shot with the nikon D300. I wasn't expecting such difference but the truth is that the expodisc gave an almost accurate result. There was no way I could remember the exact color few days later when I sat in front of my computer to check them out. I could have bring the same result with the autoWB (raw) but only if I was able to remember what the color looked like.

No pp here















Jan 14, 2010 at 11:53 PM
nilo4fm
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p.2 #3 · ExpoDisc (Worth It or Not Worth It)


and a more recent example with the nikon d700.
The difference again is huge. And although none of the renderings is completely accurate the expodisc comes very close.

now the funny thing is that right in the next room from the one you see, i tried to take again a preset WB with the Expodisc, NO WAY. 4 times i tried and i was getting a "no good". The light, its true, was a mix from different sources and there was no way I could get my camera meter through the expodisc. Worse than that is something that I had not faced before.
After every false attempt I was returning to Auto WB, taking the shot and the shot was coming out all red. Even worse the camera was stucked to this red Auto WB and no matter what I was doing all my auto WB after that was coming out red. I tried everything (switching it off, taking the battery out...) could not make it. Finally in one last attempt it came back to normal.

To make a long story short, I retry to take a metering with the expodisc another 4 times. The exact same thing happen. I gave up. I continued in AUTO.

Here it is with no pp again.


















Jan 15, 2010 at 12:06 AM
ultimateguru
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p.2 #4 · ExpoDisc (Worth It or Not Worth It)


I did buy the Expodisc Neutral and used it this weekend at a volleyball tournament. It was nice to be able to set WB from the area I was shooting from and not have to try and get on the court with a white card. The colors turn out great, and that takes one step out of my post processing. I wanted to post a pic of the difference but I deleted the pictures by mistake. Anyway, thanks for all of your input and I will be at a couple of different gyms this week and will post a few auto vs custom vs expodisc.
Thanks again.


Jan 24, 2010 at 09:30 PM
John--G
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p.2 #5 · ExpoDisc (Worth It or Not Worth It)


millsart wrote:
Honestly in most venues I shoot anymore, the AWB on the Nikon D3 is about as good as I can get it using any other means.


Your D3 must be different than mine because on mine the AWB can't even cope with normal classroom fluorescent lighting. It's very frustrating because while the D3 has TONS of white balance presets, none of them ever seem to match any lighting I'm ever shooting in. :-)

I have not yet loaded the latest firmware release which I understand is supposed to help AWB.



Jan 25, 2010 at 03:40 PM
skyvan
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p.2 #6 · ExpoDisc (Worth It or Not Worth It)


For non-cylcing light arenas like Pauley Pavillion or Magness Arena (two places I've shot and it has helped tremendously) it is great. Otherwise it just needs to be done in post often times.

Jan 25, 2010 at 06:31 PM
Ronny Mills
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p.2 #7 · ExpoDisc (Worth It or Not Worth It)


Just bought the X-Rite Color Checker Passport. Love using it. Here's a review:
http://www.luminous-landscape.com/reviews/accessories/colorchecker-psssport.shtml


Jan 26, 2010 at 12:02 AM
jaclarkaus
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p.2 #8 · ExpoDisc (Worth It or Not Worth It)


I use a lid from a Pringles can ...

Jan 26, 2010 at 12:32 AM
senna4ever
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p.2 #9 · ExpoDisc (Worth It or Not Worth It)


White paper coffee filters from Safeway are $0.02 per 10 filters. They work as well as an Expodisc - just doesn't look too professional!

Jan 26, 2010 at 09:56 AM
george malamis
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p.2 #10 · ExpoDisc (Worth It or Not Worth It)


what color are the coffee filters? Are you sure? Are they the same color every time filter to filter?

Jan 26, 2010 at 04:23 PM
 



planning
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p.2 #11 · ExpoDisc (Worth It or Not Worth It)


Am I better with normal or portrait expo with asian skin tones?

Jan 30, 2010 at 02:10 AM
Cableaddict
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p.2 #12 · ExpoDisc (Worth It or Not Worth It)


ronnymills wrote:
Just bought the X-Rite Color Checker Passport. Love using it. Here's a review:
http://www.luminous-landscape.com/reviews/accessories/colorchecker-psssport.shtml



Thanks for the link, Ronny.

This seems like a no-brainer to me. (Along with Chuck G's white towel trick for exposure)
I'm ordering one Monday.


Jan 30, 2010 at 12:43 PM
JohnJ80
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p.2 #13 · ExpoDisc (Worth It or Not Worth It)


george malamis wrote:
what color are the coffee filters? Are you sure? Are they the same color every time filter to filter?


+1

Oh, you can be sure. If you look closely at the coffee filter box, you'll see where they guarantee they the color stability of each filter over time AND where they give the actual color balance numbers for each filter in the box.

This is what drives my nuts. People get crazy about white balance such that they are willing to spend the time getting it "exactly" right - then they use a thing that has no known color balance or stability and claim it is great. It's just trading one color shift for another.

The reason one buys an Expodisc or a whibal card or any of the other accurate color standards is to get accurate color precisely. That is going to cost money because someone has to assure that the color is correct and that it remains so over time. That is a nontrivial problem.

If you just want it close, heck - use anything that is a pleasing shade of "white" (to you) and it will be as close as the thing you picked. I mean, just carry a "white" sheet of paper in your pocket that you picked up on the way out the door. If you want it precise then spend the money and do it right.

J.


Jan 31, 2010 at 02:00 AM
photogreen
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p.2 #14 · ExpoDisc (Worth It or Not Worth It)


I receved my ExpoDisc recently. Very pleased with how it's built.
In my opinion, it's more convenient to use than a gray card.

Here is my review: ExpoDisc

This image is copyrighted by the owner

Edited on Feb 11, 2010 at 01:04 AM · View previous versions


Feb 09, 2010 at 06:55 PM
bitmaker
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p.2 #15 · ExpoDisc (Worth It or Not Worth It)


Nice review. Regarding the calibrated design of the ExpoDisc, that won't matter to the Pringles lid fans. They don't understand the importance of calibration.

You might add another very important attribute of the ExpoDisc... it can be used to measure incident light. I've used this feature on several different bodies and they all gave correct exposure easily within 1/3 of a stop.

Greg


Feb 09, 2010 at 07:12 PM
ht1948
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p.2 #16 · ExpoDisc (Worth It or Not Worth It)


Has anyone tried ColorRight? Looks like it does the same thing as Expodisc

Feb 09, 2010 at 08:54 PM
photogreen
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p.2 #17 · ExpoDisc (Worth It or Not Worth It)


bitmaker wrote:
Nice review. Regarding the calibrated design of the ExpoDisc, that won't matter to the Pringles lid fans. They don't understand the importance of calibration.

coffee filter and similar stuff... works , but you just can't rely on them in all lighting situations. basically, you simply don't know whether it's gonna give you the correct white balance next time you shoot.


You might add another very important attribute of the ExpoDisc... it can be used to measure incident light. I've used this feature on several different bodies and they all gave correct exposure easily within 1/3 of a stop.

Greg


Yep. Incident. I do mention that in the review but omitted here. Thanks!


Feb 11, 2010 at 01:04 AM
photogreen
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p.2 #18 · ExpoDisc (Worth It or Not Worth It)


I just did a bit of testing: ExpoDisc Portrait vs. Neutral

This image is copyrighted by the owner


Feb 24, 2010 at 06:39 AM
Savas K
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p.2 #19 · ExpoDisc (Worth It or Not Worth It)


bitmaker wrote:
Nice review. Regarding the calibrated design of the ExpoDisc, that won't matter to the Pringles lid fans. They don't understand the importance of calibration.

Greg


But they know the importance of reliable taste! The lid contributes to factory freshness.


Feb 25, 2010 at 10:06 PM
Savas K
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p.2 #20 · ExpoDisc (Worth It or Not Worth It)


What about shooting distant sunsets? Are we SOL when it comes to getting those colors correct?

Feb 25, 2010 at 10:11 PM
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