ExpoDisc 2.0 Review


Having proper white balance in your photos can help make the difference between a good shot and a great shot. If you’re shooting RAW or in studio with a gray card or color passport, it’s pretty easy to adjust the white balance in post. However, if you’re shooting JPEG or shooting scenes where you can’t place a grey card then it’s probably best to get the proper white balance before you even start shooting. One of the best ways that I know to do this is with an Expoimaging ExpoDisc. I’ve used this product for years. I was pleased to see that they came out with a new version. The ExpoDisc 2.0 has been redesigned to make a good thing even better. The first thing I noticed and fell in love with is that it now clips on to your lens. There are two buttons on the outside that when depressed with your thumb and index finger retract the clips that hold it in place on your lens. This means that it’s very quick to put on and keep in place and take off. The older model didn’t have this feature and I would just lay it on my lens to set the white balance and of course it could fall off very easily. The other nice enhancement is that it comes with a set of warming filters too. This is great if you’re doing portraits. When photographing people you tend to want your subjects a little warmer than “standard/proper” white balance. These filters simply slide right on to the front of the ExpoDisc 2.0.

Installing the warming filter

Once you have the ExpoDisc 2.0 in place with or without the included warming filter all you have to do is (depending on your camera model) put it in the mode for capturing a custom white balance. On the Nikon DSLRs you do this by putting the white balance selector on “Pre” and then holding down the white balance button until “Pre” starts blinking. You’ll have a few moments to take a shot. Now aim the camera at the light source and press the shutter. If all is well the display will now flash “Good” if not it will flash “No Good”, which means you’ll need to simply point at a different spot and try again. A couple of nights ago I did a portrait session in studio and used only the ExpoDisc 2.0 for my white balance. No adjustments to white balance in Lightroom. The results are below:

The shot above was captured with Auto White Balance and as you can see the skin tone is a little cooler and the wall behind is a little bluer.


The shot above was captured after using the ExpoDisc 2.0 and using one of the warming filters. This makes the skin more natural looking.


The Bottom Line

Professional photographers will tell you that it’s usually better to get things right in the camera rather than relying on post processing. I agree! If we are to agree on that then it makes sense to get white balance right in the camera as well. The ExpoDisc 2.0 is one of the best if not the best way of doing this. ExpoDisc 2.0 – Get one below:

ExpoDisc 2.0 77mm – B&H Photo

ExpoDisc 2.0 77mm – Amazon

iPhone 4 Camera White Balance: The Other Issue

Wow! There certainly has been a lot going on in the press about the iPhone 4's phone reception issues. Any time you sell millions of anything you're going to have a percentage of users that have issues with it. Especially if the something you're selling is created under a veil of secrecy that may inhibit testing under a wide variety of conditions. For the record, I can't repeat the "cosmetic" signal strength indicator problem. I've covered the little black strip areas with my fingers and I've held the iPhone 4 as tightly as I can and at the most I saw a brief one bar drop in signal on the display that I couldn't even repeat. However, although I can't repeat what others are saying is happening doesn't mean that there isn't a reception issue! It also doesn't mean that just because I can't make it happen that others aren't having a real problem. I will say that out of all the iPhones I've ever owned (all models up until now), that prior to putting the "Bumper" on my iPhone 4 I dropped more calls on my iPhone 4 than all my other iPhones combined in the same locations that I always call from and calling the same people that I always call! I've also had random disconnects and reconnects using my Jawbone ICON bluetooth headset that I never had with my 3GS. So there is definitely something going on there and it's not just how the bars are displayed on screen. Again, you may not be having a reception issue at all and you may have the best signal strength and call quality that you've ever had, but that doesn't mean that it isn't happening to others. So please don't tell me about how just because it's not happening to you, the problem doesn't exist!

Speaking of problems that not every iPhone 4 is having:


Is there a White Balance Issue with the iPhone 4's Camera?

On my iPhone 4 there definitely is a problem and I'm not alone. If I use the camera outside, the pictures are great! No complaints. However, depending on the lighting situation inside my pictures will have an extreme yellow tint to them.  As a photographer and video enthusiast one of the main reasons I upgraded to the iPhone 4 was to get the better camera AND HD video recording. Since the problem is in the way the rear camera interprets the light it also affects any video shot too. Once again, this isn't happening to everyone. My buddy Jack Beckman has NOT been able to reproduce this with his iPhone 4. Even on mine it doesn't happen in all cases. For example, I took a shot in my dining room the night I got my iPhone 4 and it was pretty much unusable as everything and everyone was YELLOW. However, the next day when more sunlight was coming in the window, the pictures came out great. Using the camera flash doesn't seem to matter much. I took this shot in complete darkness and for the most part, except for the Sony label on the tripod the white balance is fine. 

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