Originally posted by Eder Hi everyone, I have a little doubt of how can i do a correct wihite balance, either with gray cards, gray targets or caps. I have a k-r but i think most of pentax should be the same.
I go to WB, then i go to this symol that looks like "2 slopes" and then what is the correct way?
Do i take the picture to the card then what?
You have to press the shutter button. If you are using a method that fills most of the image with white or gray, make sure you turn off autofocus first. Otherwise the camera will try to focus, find nothing to focus on, then give up. The camera might also have trouble in extremely bright or dark conditions, if the exposure settings are way off - like if you are in M mode and still set up for your last shot in bright daylight.
Then you can use the dial to select whether the camera uses the entire screen for a white balance, or just one spot on it. The whole screen is useful for one of those caps, choosing just a spot allows you to place a white or gray card in the scene, then choose just that card.
Quote: i have seen on Nilon or Canon that you take the picture then you can select it for WB, but i have always had doubts of doing correctly on my pentax. Any help will be great.
Canon in particular adds extra steps to the process, I don't know why.
Quote: Also if you have any suggestion about which is better (caps, small cards or those that looks like a target). I have a cap, the cons is that is a 52mm and when i want to use my tele or macro i need to change lens, pros is that cap covers all the image and does a good measure. So im thinking on buying a card to just shoot whithout the 52mm restriction and do this WB correctly.
I like the card because you can place it in the scene. That works better when you have mixed lighting. Say you are taking a portrait indoors and the person is mostly lit from incandescent indoor lighting. There's a window in the scene that lets in northern light. That's way bluer than the inside lighting. A white balance that covers the whole scene (the cap) is going to be a compromise. A card can set the white balance for the light on your subject.