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ExpoDisc....anyone tried it
I m new to Photography thing, read about ExpoDisc in 1 of the forum also saw side by side photo with and without Expodisc and the pictures look more natural with the disc on. I like to know the pro and con from you experts before I order one for my camera. I have V-Lux1.ThanksRon..

Comments (14)

Don't waste your money. Get a Grey Card for $6.00 - it will work just as good..

Dittoman1 wrote:.

I m new to Photography thing, read about ExpoDisc in 1 of the forumalso saw side by side photo with and without Expodisc and thepictures look more natural with the disc on. I like to know the proand con from you experts before I order one for my camera. I haveV-Lux1.ThanksRon.

Some cool cats that can use your helphttp://www.wildlife-sanctuary.org.

Even if you can't donate, please help spread the word...

Comment #1

They are costly suckers, but I have used them.IMO they work very nicely..

To use them, set your lens to manual focus, set your WB to auto take the photo set your white balance to custom (how it works for me for my Canon).

It works nicely for all sorts of various lighting, but doesn't seem to help much with trying to get the WB of snow..

If your going to buy one, get the largest size, that way you can use them on your large lenses and hold the expo disc over top of your smaller lenses..

Sparky_caGo take photos ..

Comment #2

I see.....hmmm they I wont buy it..Thanks AllMerry ChristmasRon..

Comment #3

This might sound a bit stupid but ive found a great solution to this..

Ive cut a pure white piece of card to fit the inside of the lens cap and stuck it in using double sided tape. Then all I do (with my 28-85 is) is zoom all the way in, use manual focus and tilt the lens cap about 45 degrees away from me pointing up. I then fill the viewfinder with the "white card" untill it touches the top and bottom focus points by adjusting the tilt and the far left and right focus points by moving closer and further away then take a picture. I then set this as my custom white balance and voila!.

Seems to work for me in most lighting conditions. Except if I use custom white and then pop the flash on. Everything goes blue lol.Give it a go..

Mal..

Comment #4

The ExpoDisc works with cameras that have the ability to make a preset white balance shot. Basically you put it over your lens, set your camera to capture a Preset White Balance image, and shoot. The camera now has a better idea of what 'white' should looks like under those conditions..

Assuming your camera allows you to do preset white balance, you can also try this: Use a Pringles can lid over your lens instead of the expodisc to take the Preset White Balance shot. Believe it or not, it works fairly well..

Everything I write is a personal opinion. Even when I quote facts, they are the facts I personally choose to accept.http://www.pbase.com/mariog..

Comment #5

Pros:Consistent and predictable white balancingVery good at sorting out mixed lightingSaves time in post processing.

Turns your camera into an incident light meter (personally, I think this is it's best use).

Cons:ExpensivePortrait version warms up image too much for my liking (YMMV).

There are times when it cannot be used (if you are photographing a concert for example and the lighting in the stalls is different from the stage, you cannot balance unless you are on stage.

I chimp, therefore I am..

Comment #6

If you remembered what your mother told you and always took a clean white hankerchief with you, then you'd be able to use that. But anything white will do for WB. I often use a fold-up circular grey or white reflector. And the back of the grey card is usually white. And then there's all that paper stacked in the printer..

Regards, David..

Comment #7

I got a lens cap off Ebay for $9 which basically had the "pringles can lid" built in. It works pretty well particularly for $9. Here is a link..

Http://cgi.ebay.com/...1QQcategoryZ79002QQssPageNameZWDVWQQrdZ1QQcmdZViewItem.

MaddogOlympus E-500, Olympus E-510..

Comment #8

Check out this link:.

Http://www.balancesmarter.com/.

It is a pop-out gray/white target. i've been using it for a couple of years now and LOVE it. I have a small one that goes in my bag and a larger one for the studio and for my location lighting kit..

It's the best devise i've used to date. the nicest part is the "target" on the gray side allowing your AF to actually F!.

Hope that helps....

From somewhere on colorado's continental divide....

Fotomatthttp://www.LITfoto.com..

Comment #9

Aside from the expensive cost.... it just requires too much time to set up... for shooting on the fly, it's not as practical as I wish it were.... you could get the same results from a good grey card in my opion. Save your money for Christmas presents Matthttp://www.mattramosphotography.com'Megapixels are the key to a happy life!'..

Comment #10

I got this free on the front of a magazine many years ago (70's I think) and it has worked well for an incident light reading with TTL camera's metering (that's film, btw) and now for both incident light and WB..

Image control:Zoom outZoom 100%Zoom inExpand AllOpen in new window.

Thought I'd show it in case someone who publishes magazines is thinking of next month's freebie and wants an idea..

Regards, David..

Comment #11

No, a white or grey card will produce more consistent results and is a better solution. The physics of the Expo Disc just don't add up. Here's why: Light falling on a scene is reflected by the scene and is what the camera sees. (Picture yourself in the woods looking at a thick blanket of ferns.) The color of light seen by the camera is a mixture of the various colors of the scene (green in the case of ferns) and is different than the color of the light falling on the scene. The Expo Disc averages the color of the light reflected from the scene (or from whereever it is pointed during white balancing) and not the light falling on the scene and will correct opposite the direction of the predominant color (overly magenta in our fern example). It is the light falling on the scene for which white balance must be done.



IMac, therefore iAm wrote:.

Don't waste your money. Get a Grey Card for $6.00 - it will work justas good...

Comment #12

Below are a couple of examples of my Christmas Tree shot in my living room with no lights except the tree..

The first example is of Auto WB and the second is with using the Expodisc, I would post a third with Tungsten but the results were virtually identical to the Auto WB..

I really like it, but I agree that a grey card is much cheaper and can delivery the same results. I just had another $120 burning a hole in my pocket, and will probably use it whenever I shoot..

Auto WB.

Image control:Zoom outZoom 100%Zoom inExpand AllOpen in new window.

Expodisc Neutral.

Image control:Zoom outZoom 100%Zoom inExpand AllOpen in new window.

Nikon D300Nikon 24-70 / 70-200mm VR / 18-200mm VR / 50mm f/1.8..

Comment #13

Randy Colwell wrote:.

Below are a couple of examples of my Christmas Tree shot in my livingroom with no lights except the tree..

The first example is of Auto WB and the second is with using theExpodisc, I would post a third with Tungsten but the results werevirtually identical to the Auto WB..

I really like it, but I agree that a grey card is much cheaper andcan delivery the same results. I just had another $120 burning ahole in my pocket, and will probably use it whenever I shoot..

Auto WB.

Image control:Zoom outZoom 100%Zoom inExpand AllOpen in new window.

Expodisc Neutral.

Image control:Zoom outZoom 100%Zoom inExpand AllOpen in new window.

Nikon D300Nikon 24-70 / 70-200mm VR / 18-200mm VR / 50mm f/1.8.

Ok where do you aim to get the WB using ExpoDisk?? I get Blueish background when I aim it to the light... am I wrong??.I dont fully understand where to aim and get white balalnce indoor and outdoor..

Thanks..nice tree with expodisk, in your case, did you set WB from the tree lights??..

Comment #14

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This question was taken from a support group/message board and re-posted here so others can learn from it.

 

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