Understanding the Goal:
* IR Photography: This type of photography captures light just beyond the visible spectrum. Healthy vegetation reflects a lot of near-infrared light, appearing bright white in IR photos. Skies often appear very dark, creating dramatic contrast. Other materials react differently than in visible light.
* Black and White Landscapes: The conversion to IR enhances the potential for striking black and white images, often with a dreamlike, otherworldly quality.
The Conversion Process (The Core of It)
* Removing the Hot Mirror/IR Cut Filter: All digital cameras have a filter called a "hot mirror" (or IR cut filter) that blocks IR light from reaching the sensor. This filter must be removed to allow IR light to reach the sensor.
Types of Conversions & Filters
* Full Spectrum Conversion: This involves removing only the hot mirror, allowing the sensor to capture a wide range of light, including UV, visible, and IR. You then use screw-on IR filters on your lens to block visible light and isolate the desired IR wavelengths. This is the most flexible option, letting you experiment with different IR bands.
* Pros: Most versatile, use any IR filter.
* Cons: Requires separate filters for each desired IR effect.
* Dedicated IR Conversion (Specific Wavelength Filter): This involves replacing the hot mirror with a specific IR filter (e.g., 720nm, 830nm, or 590nm). The filter blocks most or all visible light, allowing only the chosen IR wavelength to reach the sensor.
* Pros: Simpler workflow, immediate IR images without a lens filter.
* Cons: Less flexible, locked into that specific IR wavelength. Changing the IR effect requires a different camera conversion.
* Common IR Filter Wavelengths:
* 720nm: A good starting point, produces bright vegetation and dark skies. Some visible light leaks through, resulting in slight color.
* 830nm: More intense IR effect, almost entirely black and white, very dark skies. Less visible light leakage.
* 590nm (or similar): Allows a greater amount of visible light through, making it possible to get unique color renditions. (Often called "Super Color Infrared").
Who Performs the Conversion?
* Professional Conversion Services: This is highly recommended! These services are experts in disassembling and reassembling cameras in a clean environment. They will ensure no dust gets on the sensor and perform the conversion correctly. Examples of reputable services:
* LifePixel
* Kolari Vision
* DIY (Do-It-Yourself): This is only for experienced electronics hobbyists comfortable working with delicate components. It involves significant risk of damaging your camera. There are tutorials available online, but proceed with extreme caution.
Camera Selection:
* Older DSLRs/Mirrorless Cameras: Older cameras are often good candidates for conversion because they are less valuable and you won't worry as much about damaging them. Many photographers dedicate an older camera body specifically for IR photography.
* Cameras with Live View: Live View is highly recommended, as you'll be focusing and composing using the LCD screen, which can be challenging with strong IR filters.
* Sensor Size: Both full-frame and crop-sensor cameras can be used. Crop sensors will give you a narrower field of view, which can be helpful for some landscape compositions.
* Avoid cameras with heavily integrated sensor cleaning systems. These can be more difficult to disassemble.
Steps After Conversion
1. White Balance: This is critical for achieving the desired look.
* Custom White Balance: Take a photo of a green leafy plant in sunlight with the IR filter attached (if using a full-spectrum camera). Set this photo as your custom white balance in your camera's menu. This will dramatically shift the colors, which you can then adjust in post-processing.
* Preset White Balance: Experiment with different white balance presets (e.g., Cloudy, Shade) to see what effects you get.
2. Focusing: IR light has a different focal point than visible light.
* Live View Focusing: Use Live View and zoom in to ensure accurate focus.
* Infrared Focusing Mark: Some older lenses have an "IR" or red dot near the distance scale. This indicates the focus point for IR light.
* Test Shots: Take test shots and review them at 100% zoom to confirm focus.
3. Exposure: IR photography often requires longer exposures than visible light photography.
* Use a Tripod: A tripod is essential for sharp images, especially with longer exposures.
* Experiment with ISO and Aperture: Adjust ISO and aperture to achieve the correct exposure.
* Histogram: Pay attention to the histogram to avoid clipping highlights or shadows.
4. Post-Processing (Key to Success!)
* Software: Adobe Lightroom, Photoshop, Capture One, or similar photo editing software.
* Convert to Black and White: The most common starting point.
* Channel Mixer: The Channel Mixer in Photoshop is a powerful tool for IR images. You can swap the red and blue channels to create interesting effects.
* Contrast and Tone Adjustments: Adjust contrast, highlights, shadows, whites, and blacks to create the desired mood.
* Dodging and Burning: Use dodging and burning to selectively lighten or darken areas of the image.
* Sharpening: Sharpen the image to enhance details.
* Noise Reduction: If necessary, apply noise reduction to reduce noise in the image.
* Creative Effects: Experiment with different filters and effects to create unique looks.
Tips for Black and White IR Landscape Photography
* Look for Healthy Vegetation: Healthy vegetation reflects a lot of IR light, creating bright white foliage in your images.
* Dramatic Skies: IR photography often creates dramatic skies with dark clouds.
* Water: Water can appear very dark or very bright in IR photos, depending on the angle and reflections.
* Composition: Use strong compositions to draw the viewer's eye into the image.
* Experiment: Don't be afraid to experiment with different settings and techniques to find what works best for you.
* Shoot in RAW: RAW files contain more information than JPEGs, giving you more flexibility in post-processing.
* Golden Hour: The golden hour (the hour after sunrise and the hour before sunset) can produce beautiful light in IR photography.
* Midday Sun: Surprisingly, bright midday sun can be excellent for IR, as it maximizes the IR reflection from vegetation.
Important Considerations Before Converting
* Cost: Camera conversions are not cheap, typically ranging from $200 to $500 or more, depending on the service and the camera model.
* Warranty: Converting a camera will void the manufacturer's warranty.
* Dust: Dust on the sensor is a major concern with camera conversions. Ensure the conversion is done in a clean environment.
* Commitment: Decide if you're truly committed to IR photography before converting a camera. It's a specialized technique with its own learning curve.
* Lenses: Not all lenses perform well with IR. Some lenses may exhibit hotspots (bright areas in the center of the image). Research lens compatibility before converting. Test any lenses you plan to use with IR before getting the conversion.
* Visible Light Leakage: Some IR filters allow a small amount of visible light to pass through. This can create interesting color effects, but it can also be undesirable. Consider the amount of visible light leakage when choosing an IR filter.
In summary, converting a camera to infrared opens up a world of creative possibilities for black and white landscape photography. Research the conversion process carefully, choose a reputable conversion service (unless you're highly experienced with electronics repair), and be prepared to spend time learning the techniques and post-processing skills necessary to create stunning IR images. Good luck!