by Bart Arondson

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I tested both of them; Kodak Portra 160 ISO and Superia 200 ISO. As a first reaction, I think that I love Portra. The main reason is the fine grain — Portra leads to a better grain result than Superia. Also, the color palette, in my opinion, is better in case of Portra (resulting in pastel colors). Basically that is what I am looking for right now — ...


One source of inexpensive filters would be a store with used photography items - some of these filters were used in traditional B&W and color photography and you may find some of them for very little money. Filters with the same spectra as Wratten filters were available from other manufacturers with different naming. It might be useful to google it and ...


There are two problems here: exposure and white balance. I assume the markings on the device are supposed to be white: they're not in the images you post, which indicates a white-balance problem. Here's why overexposure messes up colours. If you think about it, you already know that overexposing can mess up colours since, if you massively overexpose, ...


Most likely reason is the diode is overexposed. That would cause (the red channel) to be blown and the red color will appear faded. Decrease the exposure. Depending on what else is in the shot, the white balance could also be off. You can test that by including a white or grey card in the shot and checking and correcting in post.


LEDs emit a narrow frequency band of light. Digital cameras detect color by looking at black and white luminance (brightness) sensors that go through a grid of colored filters (red, green and blue). If the frequency of light from the LED is narrow enough and doesn't match up well with the filters on the sensor, you can get odd looking color as the narrow ...


This is not the first time I have encountered this problem. So, is there a "fool-proof" color space that I can use for web? What about print? The sRGB is the most foolproof. But even with that you will see minor inconsistencies on the web due to many factors. With printing, larger profiles would provide some minor benefits, but it is best to stay with ...


I would highly recommend that you read Jeffrey Friedl's article on color spaces and photography. He links to a thread on dpreview which may have some bearing on your issue with Shutterfly. It seems that many photo sharing sites strip the color-space information from photos...

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