It is a living dream for many of us to have the chance of capturing images while scuba diving. This dream however does not just come true without much efforts made. Through magazines, individual see pro taken images. This exercise can be very exciting. However, there is much involved in this dynamic in terms of concepts behind the perfectly taken underwater photographs. When we talk of underwater Photography – What is Chromatic Aberration?
The term chromatic aberration is not new to the profession of photographers. Every now and then you will hear them mention it. It is therefore important to have a glimpse of what exactly this phrase stand for. This effect can mess up your photos and therefore experts have come up with a method to get rid of it. The chromatic aberration effect on a photo is that it can reduce the details captured by your camera.
A camera has be made with lenses and this technology is employed to help minimize on the particular glitches. However, under wrong conditions, they will show up in your photos. In an image affected by chromatic aberration, it appears soft like when using a lens out of focus. This loses much of the details in an image through loss of the perfect resolution.
This problem can be perfectly fixed through the use of an image already afflicted with the aberration. It is through adjusting and aligning the channels to fit to one another. This is not as easy as it sounds. It is because the light will always tend to spend up at different points in a lens. This ends up creating distortion in particular areas than others.
To manage this effect, start with adjusting the green channel so as to fit the red channel in place already. There is increase in speed of light as it goes from red to blue to green. Therefore, the trick here is to adjust the two colors, green and blue to fit to red which possesses slow frequency. Here, ensure that your initial selection is green while turning off the blue channel. This will give you a chance to observe red and green overlap.
As all this is done through Photoshop, select the green channel and after press the Ctrl + T, this will perform a transformation on the green channel. The channel should be fitted carefully on the outside edges and after press Ctrl + D in order to get rid of marquee. Here you will notice that some adjustment goes for blue. At this point, turn off green channel and later select the blue. Repeat the same procedure on the blue channel and at the end press enter to commit to this transformation.
Eventually return to combined RGB channel and here you will notice it has repaired most the obvious aberration in your photo. It cannot be a perfect repair on all the photos as it is not the ultimate repair. For the blurred images they can as well be repaired. This is through creating a copy of the newly tweaked layer.
Later make a selection for the green channel, nudge it so as to fit the focal point areas. The selection should be done as demonstrated earlier before nudging your image in green channel. Repeat the procedure on blue channel only with the focal point to worry about.