pilotboat wrote:
I recently went to a wildlife photo exhibit. The pics were of deer, owls, birds and fish.
The colors were perfect. The artist said that he uses no photoshop techniques with his photos. He only uses techniques that Ansel Adams would use.
Is this possible? I don't know what type of camera/lens that he uses.
www.rhodeshots.comI sure would like to take photos like his.
His images are quite good - shows excellent control over exposure, but saying he uses AA's approach is a questionable claim, as others have pointed out - especially since AA was the master at exposure and post processing.
To summarize AA's system - through careful testing, he was able to establish the dynamic range capture capability of his film. Since he was working with negative media, the holy grail was shadow detail. Shadows in negatives appear as very lightly exposed (thin or almost clear) sections. So he understood what the minimum exposure value he needed to capture the shadow detail.
He devised a zone system to quantify all of this. It consists of 10 zones, with zero being black with no detail, and 10 being completely white with no detail, and everything else fell in between.
The most critical part of his approach was in being able to evaluate a scene in terms of its brightness range, and relate it to the film's capability to capture it. In a low contrast situation, the exposure range might only be 5-7 fstops. But in certain high contrast situations, it could be as much as 15 stops or more. He used a popular reflected light meter - the Weston Master V to measure his baseline, then used his experience with brightness ranges to arrive at optimum exposure settings. Today, you would use a spot meter, or the spot meter function in your camera, to measure highlight/shadow, and determine your exposure by making sure the highlights are not irrevocably overexposed - exposing to the right. This is the opposite of working with negative media, in which insufficient exposure will irrevocably fail to capture shadow detail (you would expose to the left).
With his understanding of exposure, film capability, and how much he could influence dynamic range by adjusting the variables during film developing - chemical formula, concentration, temperature and time - to hold back highlights, develop more detail in the shadows and control fog and noise - he was able to record the maximum amount of information possible in the negative. Then it was off to the darkroom to create his "vision" of a scene, which often involved copious amounts of dodging and burning, image intensifiers, and other esoteric techniques.
Luminosity masks can be thought of as "manual HDR" since they use two more more exposures of a scene and blend them together, isolating the important details in each using a selection based on luminosity - brightness.
If you are so inclined, you can download a set of actions to do this somewhere on this page -
http://iso.500px.com/luminosity-masks-in-digital-blending/But with today's cameras offering in excess of 14 stops of dynamic range, the need for luminosity (and HDR) processing is minimized. Thought there remain situations where it is advantageous to use it.
As far as his colors are concerned, there is some serious post processing going on in many of his images, and one of his fall landscapes clearly shows that his orange and red color channels are clipped - and perhaps could have used some PP to diminish the luminance/saturation on those colors to render the detail better, or taken the image with a lower exposure value.