I. The Setup and Key Ingredients
* Subject: A good candidate is someone with strong bone structure (pronounced cheekbones, jawline, etc.). Think about a person whose face can handle dramatic shadows.
* Lighting: This is the MOST CRITICAL element. You need *directional* light.
* Single Light Source: Ideally, use one main light source. This could be a softbox, a beauty dish, or even just a window with a single pane. You want a focused area of light.
* Placement: Position the light source slightly to the side and above your subject's head. The exact angle will depend on your subject's face. The goal is to create the signature triangle of light on the *opposite* cheek from where the light is positioned. Experiment and move the light source!
* Optional Reflector: You *can* use a reflector on the shadow side to subtly fill in the shadows. If you want a very dark and moody look, keep the reflector's effect minimal.
* Background: A dark, plain background is essential. Black or deep neutral tones work best (dark grey, dark brown). This helps to isolate the subject.
* Clothing: Dark, simple clothing is ideal. Avoid bright colors or patterns that will distract from the face.
* Shooting in RAW: This gives you the maximum flexibility to adjust exposure and white balance in post-processing.
II. Lightroom Editing Steps
These steps are a general guideline. The specific adjustments will depend on your starting image. I'm assuming you're using the Develop module in Lightroom Classic or the Edit panel in Lightroom (Cloud).
1. Basic Panel - Global Adjustments:
* Exposure: Start by lowering the exposure. You're aiming for a darker overall feel, but don't crush the blacks completely. Err on the side of underexposure. Usually, you'll be decreasing the exposure significantly (e.g., -1 to -3 stops, or even more).
* Contrast: Increase the contrast. This will further separate the highlights and shadows, giving it that dramatic look.
* Highlights: Lower the highlights. Recover any blown-out highlights (areas that are pure white and have lost detail).
* Shadows: This is a tricky one. You might lower the shadows further to deepen the shadows, but be careful not to lose detail in important areas of the face. Alternatively, you might subtly *raise* the shadows to reveal some detail in the darker areas, but keep it minimal to maintain the mood. This is often adjusted later with local adjustments.
* Whites: Adjust the whites slider to set the brightest point in your image. This will help define the overall tone.
* Blacks: Push the blacks down to make the shadows darker and richer. Be careful not to clip the blacks too much (lose all detail in the shadows). Look at your histogram. You want the blacks to touch the left edge, but not be completely flat.
* Clarity: Add a touch of Clarity. This enhances mid-tone contrast and gives the image more definition. But don't overdo it; you don't want to make the skin look harsh.
* Dehaze: Use Dehaze sparingly. A slight amount can add depth, but too much can make the image look unnatural.
* Vibrance/Saturation: You might reduce Vibrance slightly to tone down the colors and enhance the dark and moody feel. Or you might keep saturation relatively normal. The goal is to not have overly colorful skin tones.
2. Tone Curve:
* The Tone Curve is powerful for fine-tuning contrast. Create a slight S-curve to add contrast. Pull the bottom of the curve down to darken the shadows and the top of the curve up slightly to brighten the highlights. A very subtle adjustment here can make a big difference.
3. HSL/Color Panel:
* Luminance: This is key for manipulating the brightness of individual colors.
* Orange/Yellow: The orange slider will affect the brightness of skin tones. Adjust it subtly. Often, a slight decrease in orange luminance can enhance the mood.
* Reds: Adjust the reds if you want to slightly darken or brighten the lips or other red areas.
* Saturation: Reduce the saturation of colors that are distracting or overly vibrant. Skin tones should generally be relatively muted.
* Hue: Minor adjustments to hue can help correct skin tones.
4. Local Adjustments (Adjustment Brush, Radial Filter, Graduated Filter): This is where you refine the look.
* Adjustment Brush: This is your most versatile tool.
* Dodge and Burn: Use the Adjustment Brush with *negative* exposure to darken specific areas (e.g., further darken the shadows on the cheek, deepen the background). Use the Adjustment Brush with *positive* exposure (dodge) to slightly brighten the area of light on the cheek, or to bring out the eyes. Use a low flow and build up the effect gradually. Feathering is essential.
* Eye Enhancement: Very subtly increase exposure, clarity, and sharpness on the eyes to make them pop.
* Skin Smoothing: *Subtly* use a brush with a negative clarity and sharpness to soften skin. Only use this where needed and with very small adjustments, or the skin will look unnatural.
* Radial Filter: Useful for darkening the edges of the frame to draw attention to the subject (vignetting). Create a radial filter around the subject, invert it, and then reduce the exposure. Feather the edges heavily.
* Graduated Filter: You can use a graduated filter to darken the top of the frame for additional drama.
5. Detail Panel:
* Sharpening: Apply a moderate amount of sharpening, but use masking to prevent sharpening of noise in the background.
* Noise Reduction: If necessary, apply a subtle amount of noise reduction, especially if you've raised the shadows significantly.
6. Camera Calibration:
* Experiment with different Camera Profiles (found at the bottom of the Develop panel). Some profiles may give you a starting point that you like.
Tips and Tricks:
* Work Non-Destructively: Use layers and masks liberally.
* Subtlety is Key: Don't overdo any single adjustment. Build up the effect gradually.
* Reference Images: Look at actual Rembrandt portraits for inspiration. Pay attention to the lighting, the shadow patterns, and the overall mood.
* Histogram: Constantly monitor your histogram to avoid clipping highlights or shadows.
* White Balance: Set the white balance carefully. Warmer tones can add a feeling of intimacy, while cooler tones can enhance the drama. Experiment to see what works best with your image.
* Frequency Separation: For more advanced skin retouching, consider using frequency separation techniques in Photoshop after your initial Lightroom adjustments. This gives you more control over texture and tone.
* Practice Makes Perfect: The best way to master this style is to practice. Experiment with different settings and lighting setups.
Example Workflow (Condensed):
1. Basic Panel: Exposure -1.5, Contrast +30, Highlights -50, Shadows -20, Whites +10, Blacks -30, Clarity +15, Vibrance -5
2. Tone Curve: Subtle S-curve
3. HSL/Color: Orange Luminance -5, other minor adjustments as needed.
4. Local Adjustments:
* Brush: Darken shadow side of face, deepen background.
* Brush: Brighten eye and cheek highlight.
* Radial Filter: Darken edges (vignette).
5. Sharpening: Moderate sharpening with masking.
6. Noise Reduction: As needed.
Remember, these are guidelines. Every image is different, so adjust the settings to suit your specific photo and desired look. Good luck!