MULTIMEDIA

Photgraphy Tips & Tricks : Photography against the light & Self-Made HDR

5/23/2012 6:03:49 PM

Image editing

Use digital solarization in Photoshop and Photoshop Elements

One can create interesting and captivating photos from ordinary image files with the help of the RAW converter provided in Photoshop.

Description:  Black and white solarisation using Camera Raw

The curves can be tweaked to create stunning effects with much less effort than in analog times.


One of the most unusual effects comes from the pre-digital era: the solarization effect. For this effect, photos used to be exposed once again in a dark chamber during the development process. The result was a black and white image where the tonal values were partially reversed, resulting in an optical mixture of negative and positive image. The best suitable images for this effect were ones with strong, clear subjects. Fortunately, in the digital age, a type of "pseudo solarization" has become quite easy: tonal values can be changed to any value using a Gradation curve in the Camera RAW processing tool. You need to activate the "Point" tab instead of the "Parametric" tab so as to be able to change the curve over individual points.

To begin with, choose a suitable image. Open this image in Camera RAW and convert the image to greyscale via the option "HS/ grey scale images". Now, adjust the gradation curve such that the bright and dark image areas are brought out. First the gradation curve must be brought in a rough 'M' shape. Then, finetune it by clicking on the corresponding icon and then select the option "Point". For setting the first point, follow the tonal curve screen from lower left and set the point somewhere under the centre of the first zone. Then go to the first line intersection where we move it to the uppermost horizontal line. Now, the central control point is on the line: it is pulled downwards somewhere in the middle of the lowest zone. Now, grab the curve at the upper right side and move it down till the lower edge. Then, select one more point beside it and pull it till the uppermost horizontal line next to the right edge of the diagram. One point is set in the right upper zone in order to round off the curve; this is the point where the curve bumps against the upper end of the diagram and moves to the uppermost horizontal line. Move it to left and right till the curve goes slightly above the diagram in the uppermost right field. In the example we have shown the point lies somewhere to the right next to the third vertical line.

Now, activate the option "Split toning" and move the "Adjustment" slider to the right and set it to "+100". Now, you can set a color tone of your choice in the "Light" menu: "56" will color the photo with a slightly yellow tone. This depends on your liking; you could also use some other color. Reduce the saturation to about "10". The intensity of the color tone could vary as per your taste.

Photography against the light

Avoid ghost-like images and lens

Many times, you will see more than one sun in images taken at the time of sunset.

Description: sunset

This false double-sun effect is caused by reflections which can easily be eliminated.


Since this does not really match reality you should know the reason behind it. For instance, if you have taken two images —one with 90 mm focal length, f8 and 1/640 s and the other with 200 mm, f11 and 1/250 s— you will see a double sun in the second image. The double sun is a typical flare effect. Such effects are commonly seen in case of images taken against the sunlight. Here some of the light is reflected by the lens and is seen in the image due to the very bright original source—it is actually its reflection.

Flare effects can be avoided partially or completely if the focal length is changed /"\ while zooming. Changing the camera position also helps at times.

Self-Made HDR

Use the bracketing function of the camera cleverly

Today, even simple compact cameras offer the option of automatic exposure bracketing.

Description: Dramatic lighting effects like this are the result of combining multiple exposures

Dramatic lighting effects like this are the result of combining multiple exposures.

You can make impressive images with excellent lighting effects very easily even from images with subjects that are partly over-exposed and partly underexposed. The relevant tools are already built into most compact and mirrorless cameras such as the Sony NEX-5N or Canon PowerShot S100. If your camera can take photos with different exposure settings, then you could figure out and create your HDRs even with Photoshop and with the help of the free tools like for instance easyHDR Basic (easyhdr. com).

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