Showing posts with label blurred in the lens. Show all posts
Showing posts with label blurred in the lens. Show all posts

Sunday, April 15, 2007

symbiotic blurring


acid drops (II) (by ~ fernando)


«acid drops II»


It has been bugging me for a while, that there has to be much more than blurring in the lens. While I have liked the results with Gehry's Walt Disney Concert Hall, and other applications of such a technique, it also opened up for something to continue. Frank Gehry's recent buildings are perhaps the easiest to learn how to tame the "blurred in the lens" approach that does not involve a consistent "focused at twice infinity" concept for emphasizing the form, as pursued by Hiroshi Sugimoto.

The blurring to obtain the lines is the first step in this approach I take. The second one is to dodge and burn (locally) to enhance the shapes. In a way, it is un-blurring some detail but still in the form of a shape. This may be best exemplified with the photos of the Flat Iron building, where I burned and dodged to bring out the silhouettes from the windows.

Aside from this emphasis, there was something else that the technique could bring, especially in the Frank Gehry case. The smoothness of the segments was crying out for some texture, but noise was too much of cliché, and not really apt. The gradients in light caused by his non-flat surfaces (and photographed late in the day), would serve another purpose. The Flat Iron building still gives a sense of scale, but the Gehry photos do not: this is when it struck me that an overlay of another image would be something to try.

At first, it was a way to enhance the Gehry image with some subtle detail from another scale, as in a close or macro image, rich in detail and texture. As I worked on the image above, I realized that it was forcing me to look at it more as a symbiosis. That is, the Gehry abstract gained from the texture offered by the rusty-iron abstract, and the rusty-iron abstract gained from the light gradients to be painted differently than the natural rusty red. Furthermore, the light shapes from the Gehry image made brings a sense of mutual harmony to both.

An appeal of this technique, in having practiced with an entirely different image, «Paris and Rome» that has both images with much detail, is that it is not a script: each image must be processed individually, with an abstract/imaginative idea guiding what it is done. In any exploration, I am worried of coming to a technique that involves some (clever) button being pushed, as it almost feels with blurring in the lens.

Friday, February 9, 2007

colours, japanese food and turntables


Bill Callahan (smog)


«bill callahan (the Independent San Francisco»


I look over my photos, and I see a variety of colours. However, it is often that I hear that I "just" go for B&W. Here, B&W can include split toning, or just a few colours. Although perhaps an unfair stereotyping, it is mostly true: I am displeased with the colours of many shots I make, and rarely think that they convey the emotion I want to present.

As I now get to work first with Adobe's Lightroom, and sometimes skipping any dodge, burning, and/or corrections with Photoshop, I have noticed another reason: the digital cameras sensors still suck. (OK, just bear with my drama here.)

I got my first camera in 1999, and shot with colour film. All the nice photos looked fine with a little contrast correction, as done by the nice person at the mom/pop photo store. Nice work, I was very pleased. Once I got the first digital camera at the end of 2001, I stopped using colour film, in favour of black and white. Not sure why, I do not know much about film performances, but the colours in digital are very crisp when properly exposed. Even clinical. I was doing digital colour and film B&W.

It must have been while using Photoshop Elements and discovering the "overlay" layer blending, that I fell in love with contrast. Turning up the contrast in colour looks strange, and perhaps more importantly to what I want to do, very distracting. I think this falls into common wisdom, and there is nothing new here. Since then, I developed some Gradient Maps to convert colour images to anywhere between 2 and 5 tones. At times, I used it for desaturation, and that is all I did in the early days: very desaturated images thanks to the Gradient Map and blending with blurred layers. Soon, I lost interest in that look, and it was just a learning step towards B&W.

I am fascinated by making odd connections, and I can think of Japanese food. After all, I like to think that my subsconcious is rather limited and it applies similar rules to many, seeming disparate, perceptions. The main reason why I like Japanese food is that elements are simple and generally separated. When taking a bite, there are a few flavors to savor, unlike say, a pizza with "everything on it." I like the focus on just a few elements at play at any one time, so I can maximize learning and/or appreciation. (Yes, when I eat pizza, I just want one or two toppings maximum.)

B&W photography offers to me the same experience as Japanese food: I am able to highlight for myself a couple of elements in the photo that I want to emphasize. The image can still be chaotic in its lines, or something very simple. However, the "sweet spot" is being able to play with the contrast in the image. «Triangle» above is a wonderful example, and I am not a fan of flower images (flower and portraits are still my weak spot, and the feedback on flickr correlates to that notion).

Playing a record on a turntable can be full of noises that can detract from the experience, yet this is contradicted in photography, although people may enjoy the noise on both. A consequence of increasing the contrast in an image is to increase the noise as well. In colour images this seems to be unacceptable, but it is highly tolerable in B&W, as a way to add "ambiance" or feel. I am curious if in a few generations this appeal will go away, as a greater number of photographers may only know digital and, like most today, listening to music in a digital representation is more appealing than a turntable with noise/pops. However, blurry paintings are still appealing quite a few generations removed from its start.

Even in Camera RAW images of today, turning up the contrast on images exposed to my liking means having to deal with the presence of noise. This is not the case for many applications of digital photography, but for early morning and late afternoon photographs, the contrast is already low, but the light is delicious: the image has to be compromise, in one sense, to gain in expression in a B&W space.

The reason why digital cameras suck (within the limits of what I want to do), even when there is gorgeous colours at that time, is that as the image is broken into RGB at different pixel locations, the blue channel is mostly noisy, though the blue channel contains quite an amount of sharpness detail and texture. In using Lightroom to convert to B&W, I am struck at the quality increase in the image when I convert to grayscale, and can use the different RGB colours to mix into one very satisfatory image in two-tones. This is a simple fact of Information Theory, where the total information is increased when different sources are combined properly. Then, I can apply some split toning to change the mood a little, if the B&W is too harsh.

This approach has become so intuitive, that it is best to assume that the image is going to be in B&W so I do not worry to much about White Balance, unless the capture quality is compromised, i.e., one of the three channels may be over, or under, exposed. As the newer digital cameras provide a histogram for each channel individually, this problem with white balance can be corrected. Not only is the white balance not as critical, or easy to correct, but it becomes a matter of using this camera instrumentation shortcoming to my advantage. For example, under expose to obtain some "digital grain" and have a signature noise, controllable (it is in the blue channel after all), and not depend too much on a layer, or more, of gaussian noise.

There will be a time of very fast and sensitive digital sensors to 32 or 64 bits, and perhaps I will return to colour. However, there is nothing to complain at the moment, just to have some eureka moments and work with the faulty instrument.


Thursday, January 25, 2007

what is it in a window?


dust at dusk (by ~ fernando)


«dust at dusk»


I think everyone has come to the annoying situation in trying to take a photo of a landmark (or a subject of interest), and there are signs in the way, . One idea I had in the past was to make the painted sign the main feature, with the object of desire as a prop (equal or lesser to the sign), or just compose with the road sign in it.

Something similar here. I got rid of the room's reflection in the window, and could do the same with the dust outside. However, the time of day was near sunset and the dust in the window was actually "sparkly." It was not a matter of capturing the dust's hue, but just thinking of it as "grain" -- very sparse at that.

I had already experimented with "blurred in the lens" architecture photography, but here it was rather monolithtic, and not of great form. However, it seemed to work when considering the sky's cloud formation, and of course, the dust being lit up.

There were various focal points that would blur the dust on the window, as was done in the sunset image from the same view point. Instead, this image makes the dust the principal protagonist, when you look up close. Reflections from the sunlight made the dust bright and so came the idea to photograph the dust, and just pick a background. In this case, the Bank of America building/monolith in the Financial District in San Francisco.

One aspect of the exporure to so many photographs in flickr is that, even when they are excellent in all aspects, one can see similarities between so many images. For instance, if it was raining, then this image would be one of so many -- 1086 images on flickr with the {water, window, drops} tags -- and the benefit would be (1) a different scene and (2) an emotional familiarity that is associated with these kind of images.

Now, how many people will have an emotional attachment to a dirty window? The implication to this image is that, while not part of that set of raindrops-on-the-window motif, the person seeing the image may have to work harder, and the blurred background's importance is important. I think it offers a way for the individual's imagination to settle into what they feel a lot faster and perhaps even engage the photo, rather than providing a infinite depth-of-field that tells the whole story and there is a nice "wow" moment if they like it. This is not too different to the sunset image linked above. Notice how a search with {window, dust} does not turn up the same type of images that are prevalent in the first search: the first search has the same image over and over again, with the differing blurred background, but in the case of dust, it is about taking a step back and showing how dirty the window is, or that it has dust in it, but the dust is not the only thing in focus. Just peruse through a few pages.