1. Understanding Infrared Photography
* What is Infrared? Infrared light is electromagnetic radiation with wavelengths longer than visible light. We can't see it with our eyes, but some digital camera sensors can.
* How it Affects Images: IR light interacts differently with subjects.
* Vegetation: Foliage reflects IR light strongly, making it appear bright white.
* Sky: The sky often turns dark and dramatic, almost black.
* Water: Water can appear milky or dark, depending on the angle and surface reflection.
* Skin: Human skin can appear smooth and porcelain-like (not relevant for landscapes, but interesting to know).
* Why Black and White? While you *can* shoot IR in color, the resulting hues are often strange and unpredictable. Black and white conversion is the most common and aesthetically pleasing approach, emphasizing the stark contrast and ethereal qualities of IR.
2. Choosing a Camera for IR Conversion
* Digital Cameras are Required: Film infrared is available but very expensive and requires specialized darkroom techniques.
* Sensor Size Matters: Any sensor size (Full Frame, APS-C, Micro Four Thirds) can be converted. Larger sensors generally offer better low-light performance and shallower depth of field.
* Camera Features to Consider:
* Live View/Electronic Viewfinder (EVF): Crucial for focusing after conversion since you won't see visible light through the lens. An optical viewfinder becomes unusable.
* Manual Focus Peaking: Helps achieve sharp focus in live view.
* Focus Magnification: Magnifying the live view image allows for precise focusing.
* Good ISO Performance: IR photography often requires higher ISO settings, so a camera with good low-noise performance at higher ISOs is beneficial.
* Dedicated IR Camera vs. Converted Camera:
* Dedicated IR Camera: Designed specifically for IR photography. Tends to be more expensive but optimized for IR performance.
* Converted Camera: An existing digital camera that has had its IR-cut filter removed and replaced with an IR-pass filter. This is the more common and cost-effective option.
3. The Conversion Process
* The IR-Cut Filter: Digital cameras have a built-in IR-cut filter in front of the sensor to block infrared light, as it can interfere with normal color reproduction. This filter MUST be removed.
* IR-Pass Filter: After removing the IR-cut filter, an IR-pass filter is installed in its place. This filter blocks visible light and allows only infrared light to reach the sensor. Different filters block different wavelengths of visible light, resulting in varying infrared "looks." Common filter types include:
* 720nm: Blocks all visible light below 720nm. A good general-purpose IR filter, producing strong infrared effects.
* 830nm: Blocks all visible light below 830nm. Results in very strong IR effects and a very dark image through the viewfinder (if you could use it).
* 590nm: Blocks visible light below 590nm. Sometimes called a "Super Color IR" filter. Allows a bit of visible light to pass, resulting in some interesting false-color effects *before* converting to black and white. This can be great if you want a slightly different look in post-processing.
* Who Should Do the Conversion? DO NOT ATTEMPT THIS YOURSELF UNLESS YOU ARE EXTREMELY COMFORTABLE WITH PRECISION ELECTRONIC REPAIR. Opening up a camera and working on the sensor is delicate and can easily damage your camera. It's best left to professional conversion services.
* Professional Conversion Services: Several companies specialize in IR camera conversions. Research their reputation, pricing, and turnaround time. Examples include:
* Life Pixel
* Kolari Vision
* MaxMax
* What to Expect from the Service:
* You send your camera to the conversion service.
* They remove the IR-cut filter and install the IR-pass filter you choose.
* They may offer sensor cleaning and calibration as part of the service.
* They ship the converted camera back to you.
4. Essential Gear (Beyond the Converted Camera)
* Lenses:
* Not All Lenses are Created Equal: Some lenses perform better than others in IR. Look for lenses with minimal "hotspots" (a bright center in the image). Test lenses beforehand if possible.
* Manual Focus Lenses: Can be easier to use since you'll be focusing manually anyway.
* Wide-Angle Lenses: Popular for landscape photography, allowing you to capture expansive scenes.
* Filters (Optional, but Recommended):
* External IR-Pass Filter: While your camera *already has* an IR-pass filter, an additional external filter can be useful if you want to experiment with different wavelengths or further enhance the IR effect. Consider a 720nm or 850nm external filter.
* UV Filter: To protect the front element of your lens.
* Tripod: Essential for sharp images, especially in low light.
* Remote Shutter Release: Minimizes camera shake.
* Memory Cards: Plenty of storage for shooting in RAW format.
5. Shooting Techniques for IR Black and White Landscapes
* Focusing:
* Manual Focus is Key: Autofocus will likely not work accurately in IR.
* Use Live View with Magnification: Zoom in on your subject to ensure precise focus.
* Focus Peaking (If Available): A valuable tool for highlighting areas of sharpness.
* Lens Markings Are Unreliable: The focus point for IR light is often slightly different than for visible light. Ignore the distance markings on your lens.
* Metering:
* Shoot in Manual Mode: Allows you to control the exposure precisely.
* Histogram is Your Friend: Pay close attention to the histogram to avoid clipping highlights or shadows.
* Expose to the Right (ETTR): Slightly overexpose the image to capture more detail in the shadows, being careful not to blow out the highlights. You can then bring the exposure down in post-processing.
* Aperture:
* Depth of Field: Choose an aperture appropriate for the scene. Smaller apertures (higher f-numbers) increase depth of field, which is helpful for landscapes.
* Diffraction: Avoid extremely small apertures (e.g., f/16, f/22) as they can cause diffraction, which softens the image.
* Shutter Speed:
* Tripod Required: Longer shutter speeds are common in IR photography, especially in lower light. Use a tripod to prevent camera shake.
* Motion Blur: Be aware of motion blur if there's wind or movement in the scene (e.g., foliage).
* ISO:
* Keep ISO as Low as Possible: To minimize noise. However, don't be afraid to increase ISO if you need a faster shutter speed.
* Noise Reduction in Post-Processing: Apply noise reduction during post-processing if needed.
* Composition:
* Look for Strong Contrast: IR excels at creating dramatic contrasts between bright foliage and dark skies.
* Leading Lines: Use leading lines to draw the viewer's eye into the scene.
* Interesting Cloud Formations: Clouds often look stunning in IR photography.
* Foreground Elements: Add interest to the foreground to create depth.
6. Post-Processing for Black and White IR Images
* Shoot in RAW Format: This gives you the most flexibility in post-processing.
* Software: Adobe Lightroom, Adobe Photoshop, Capture One, or other RAW processing software.
* Workflow:
1. Basic Adjustments:
* White Balance: Adjust the white balance to neutralize any color casts. Often, a custom white balance on green foliage works well.
* Exposure: Adjust the exposure to achieve a good overall brightness.
* Contrast: Increase contrast to enhance the dramatic effect.
* Highlights and Shadows: Adjust highlights and shadows to recover detail.
* Clarity: Increase clarity to add definition.
* Vibrance/Saturation: Reduce vibrance and saturation to prepare for black and white conversion.
2. Black and White Conversion:
* Dedicated B&W Tool: Use the black and white conversion tool in your software (e.g., Lightroom's B&W panel).
* Channel Mixer: Experiment with the channel mixer to control how different colors are converted to shades of gray. For example, increasing the green channel will brighten foliage. The red channel often controls sky darkness.
3. Local Adjustments:
* Graduated Filters: Use graduated filters to darken the sky or brighten the foreground.
* Adjustment Brushes: Use adjustment brushes to selectively adjust brightness, contrast, and other settings in specific areas of the image. For example, you might brighten foliage or darken the sky.
4. Sharpening: Apply sharpening as the final step.
5. Noise Reduction: Apply noise reduction if needed, especially if you shot at a high ISO.
Tips for Success
* Experiment: IR photography is all about experimentation. Try different filters, lenses, and post-processing techniques to find your own style.
* Scout Locations: Visit potential shooting locations in advance to see how they look in IR.
* Check the Weather: Sunny days with puffy clouds are ideal for IR photography.
* Be Patient: It takes time to master IR photography. Don't get discouraged if your first attempts aren't perfect.
* Learn from Others: Study the work of other IR photographers for inspiration.
* Embrace the Unexpected: IR light can reveal hidden details and create unexpected results.
By following these steps, you can successfully convert your camera for infrared photography and create stunning black and white landscape images. Good luck!