Tuesday, February 21, 2012
10 tips to help you make your best monochrome images
|This Article Features Photo Zoom|
While we recommend that you capture your images in color and then convert them to black-and-white when processing, you can take advantage of your camera's monochrome mode to get an idea of how the image will look in black-and-white. If you're shooting a still life or scenic on a tripod, this is especially easy to do before switching back to color for the final capture. If you're shooting action and need to move quickly, you can still fire off a few test exposures before the action starts, just to get an idea of the light in the scene and how it will render in black-and-white.
6. SHOOT IN RAW
Most cameras offer both JPEG and RAW formats. Use RAW when you know you may want to convert an image to black-and-white later. JPEG throws out data in the compression process—why limit yourself? An uncompressed RAW file contains all of the image data captured by the sensor, giving you the most latitude when processing the image, as well as the ability to go back and reprocess it differently if you want a different look later.
Your camera likely offers a histogram display, and if it does, learn to use it if you want to make the best exposures possible. An ideal histogram will be completely contained within the extremes, but heavier on the right side. You want an exposure that's just shy of blowing out the highlights. The reasons for this are too complicated to go into here in this tip, but there's an excellent explanation of the science behind this at The Luminous Landscape (www.luminous-landscape.com/tutorials/expose-right.shtml).
8. BRACKET YOUR EXPOSURES
Before digital cameras gave us the advantage of instant review, bracketing was really important. You didn't want to lose an unrepeatable shot to an off exposure, but you wouldn't know for sure until your film was processed. Bracketing, or taking a few exposures on either side of "normal," is insurance against lost tonality and detail. Your camera likely has an automatic bracketing mode that you can set to specify the number of frames and the amount of exposure compensation for each. Remember that to adjust the exposure based on the meter reading, your camera either will be changing the aperture or the shutter speed, which will affect your depth of field or your ability to freeze action, so be aware of this and select either aperture- or shutter-priority as appropriate for your subject. For the ultimate control, shoot in manual and bracket manually. Bracketing not only lets you choose the best exposure once you can see them full-screen on your computer, but it also gives you the option to use HDR techniques, if necessary.
Optical filters were especially popular for black-and-white film photography, but they're just as important today. Yes, you can replicate the look of many optical filters using software, but that is time consuming, and some digital filters are really an inadequate simulation of their optical origin. For example, a polarizer reduces glare on an object's surface, allowing you to capture details that wouldn't be captured otherwise. No digital filter can truly re-create details that aren't in the digital file.
Popular filters for black-and-white photography include yellow, orange and red for enhancing blue skies and clouds, green for enhancing foliage, and graduated neutral-density filters to reduce the contrast between a bright sky and a darker foreground.
10. CONSIDER HDR
Sometimes you're faced with a range of tonality that your camera sensor simply can't capture in one frame. That's where HDR can help you create a final image that's closer to what you actually saw. By combining bracketed exposures with HDR software, you can retain the best detail in each of the exposures. Black-and-white HDR tends to look more natural, too, as it doesn't have the sometimes obvious color shifts you see with more extreme color HDR images. If you know you'll be relying on HDR to render your final image, take the time to make several exposures that together fully capture the tonal range of the scene. And while it's always a good idea to use a tripod for the sharpest results, a tripod is critical for HDR images to be sure each frame is identically composed.
|WHY SHOOT IN COLOR?|
|Your camera has a monochrome mode, so why not skip the postprocessing and shoot in black-and-white? One reason to shoot in color is that monochrome mode is simply discarding data, and the camera is making all the decisions in translating from color to black-and-white. Another good reason is that you may one day decide you want a color version of the image—impossible if you captured it in monochrome.
Software technology will continue to improve. A few years from now, you may want to reprocess a favorite image to take advantage of something future software can do that today's software can't. If you have your original, full-color RAW file, you have the most options now and tomorrow.
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