A very effective way to color-tone an image, is to use the RGB curves in Lightroom. This allows you to manipulate colors effectively, and you face no risk of adding any banding or harsh transition lines between colors. My goal is not to try to write an exhaustive tutorial, but I hope I can give you a few ideas so you can experiment on your own.
Most of us probably never leave the realm of editing our images in a regular RGB colour space. But many applications also allow you the option to edit your images using Lab colour. What is Lab colour? How do we use it? and how does it benefit us?
Aurélien Pierre, developer of filmic module for the open-source editing software Darktable, recently put together a massive article (English version) covering everything you need to know about working in Lab colour. And while some of the steps might be specific to Darktable, the principles can be applied to many different editing applications.
I guess it’s a sign of the times, but I get sent far more LED lights to test than any other light…. even though I never personally use LEDs.
When I say I don’t use LED lights, it’s not because I have a dislike for them, but for me, they have limitations that I struggle to deal with when I shoot what I shoot. If you’re after some affordable continuous light for video work that looks natural and emulates everyday lighting, then LEDs are your first and smartest choice. But for what I do, which is often very controlled and saturated colour work that is anything but natural, I’m going to stick to the control and power of flash for now.
When we’re kids, in school, we’re taught that the primary colours are red, yellow and blue. But this isn’t entirely accurate when it comes to light. Pure white sunlight is made up of a whole spectrum of colours, with the primaries actually being red, green and blue. Our cameras with Bayer filter arrays on the sensor see RGB. Our monitors also display RGB.
But have you ever wondered how we’re able to get so many different colours from just three? And why just blasting red, green and blue LEDs at an object doesn’t always give you true white light? This fascinating video from Technology Connections isn’t really specific to photography, but light in general, and how red, green and blue affects our (and our camera’s) perception of colour.
If you’re looking for a super-cheap RGB setup for your photos and videos, here’s an interesting video for you. Caleb Pike of DSLR Video Shooter has found a set of DJ lights for only $15 per piece. They produce a wide range of colors, they’re dimmable and you can also use a controller to set the colors and the brightness. Check out the video to see them in action.
Each volume contains 3632 pages, and represents a look through the colour scheme of each of the three different colour channels; Red, Green and Blue.
The Bayer filter was patented in 1976 and can be found in almost all digital camera sensors sold today.
While several alternatives have been suggested over the years, some more exciting than others, none caught on. This could soon change, though, as Canon Watch reports that the 120MP full frame sensor Canon is developing will not be based on Bayer technology.
Roy G Biv–quick show of hands if you’re familiar with the term. Even if it doesn’t ring a bell at first glance, once you realize you’re looking at a mnemonic and not some random guy’s name, it starts getting a little more obvious: Red, Orange, Yellow, Green, Blue, Indigo, and Violet. Yes, those are the colors of the rainbow, but more importantly they’re also the referred to as the visible electromagnetic spectrum. [Read More…]