PHOTOGRAPHY TIPS AND TUTORIALS FROM HURRICANE IMAGES INC.
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Monday, July 7, 2014

Day 78, Learning 78: Low Light's Forgotten Variable


One variable in low light photography is rarely-- if ever-- mentioned.  I've avoided discussing low light photography because the subject is thoroughly tutorialized on the web.  And the theory and advice is fairly basic:  essentially, open your aperture as wide as possible and increase your ISO until your shutter speed is sufficiently fast to eliminate blur.  Of course, we're not talking about working with flashes, night time landscape photography, or image editing, simply available light photography.

Then yesterday I saw a video tutorial on the subject, and after the instructor took a number of demonstration shots, he said: "the only thing I'm not happy with is my angle of view so I'm going to switch to a zoom lens."  He did not say that he was manipulating the fourth variable in low light photography.  Frankly, I don't think he understood that he was doing so. 

The reason I say this is because he was already shooting hand-held at f/2.8, ISO 3200 (ugh), and a shutter speed of 50.  His lens was a 28-70mm.  The old rule of thumb is that your shutter speed should be equal to or higher than the millimeter on your lens to avoid motion blur.  This is truly a "rule of thumb."  Some people have incredibly steady hands.  Or shaky ones.  As lens vibration reduction technology becomes more sophisticated, we can shoot at lower and lower shutter speeds.  But while the exact shutter speed may differ from person to person, what doesn't is the relationship.  The longer the lens, the faster the shutter speed needs to be.  He had already identified 1/50th of a second as the slowest he could shoot; in reaching for his zoom he'll either have to increase his shutter speed (and thus is already painful ISO) or accept blurrier images.  Or grab his tripod as well.

The "forgotten" variable in low light photography is focal length.  When shooting hand held, don't just reach for the fast glass, reach for the wide one as well.

Tuesday, July 1, 2014

Day 77, Learning 77: Damnable Lips!

Lips, those succulent provocateurs.  They can be, they are; or they can be a miserable chapped mess.  Next to eyes, they are probably the most important feature of a portrait.  Chapped lips, of course, are natural in real life-- the result of dehydration or weather.  The challenge they pose for image retouching is in maintaining a sense of gloss and glow.  Here's one technique.

First, you'll need a pair of lips.  Not your own.


These were in pretty good shape-- certainly fine for daily life, but at 100% on your screen (a situation we probably should never subject any body part to), they take on an altogether unnatural aspect.  Here's what to do.

First, make sure they are in the best shape they can be.  Clean up the make-up line and clone out any obvious specks and bumps.

Second, create two more layers for frequency separation.  The middle layer you'll apply a Gaussian blur.  Unlike normal frequency separation where you want to have the least amount of blur possible, here you want it to be thick.  For this I used 6.

Next, perform Apply Image on your top layer, just as you would for Frequency Separation.  Don't forget to select the Gaussian Blur layer, and Subtract mode (for 8 bit images).

Using your Lasso Tool, select just the lips in the top layer.  You'll want to feather this selection a little (around 5).

Hit Ctrl J to duplicate the lips onto their own layer.  Your lips will look very ugly at this point. 

On your new top layer, apply a Gaussian Blur, only this time use exactly 1/3rd the amount as before.  In my case, 2.
Invert the layer by hitting Ctrl I. 

You should have soft, glowing lips.  Now you can bring back detail by lowering the opacity to taste.