50-120mm Lens for Portraits, Events & Indoor Sports

This guide explains how to get the most out of a 50-120mm zoom lens for portraits, events, and indoor sports. You’ll learn the best settings, shooting positions, and techniques for each scenario, plus how to avoid common errors and fix problems when shots don’t come out as planned.

What You’ll Need

• A camera with a 50-120mm lens (any brand, full-frame or crop sensor).
• A lens hood to reduce flare and protect the front element.
• A fast memory card (UHS-I or faster) for continuous shooting.
• Extra batteries – indoor events and sports drain power quickly.
• Optional: a monopod for stability in low light.

Step-by-Step

1. Set your camera to aperture priority (Av/A) or manual (M). For portraits, choose a wide aperture (f/2.8 or f/4) to blur the background. For events and indoor sports, you may need to widen the aperture fully to let in more light.
2. Adjust ISO based on light. Start at ISO 800 indoors. If the shutter speed is too slow, raise ISO to 1600, 3200, or higher until you get a fast enough shutter speed. Modern cameras handle high ISO well, so don’t be afraid to push it.
3. Set a shutter speed for your subject. For portraits, 1/125s or faster to avoid camera shake. For events (people moving), use at least 1/250s. For indoor sports, use 1/500s or faster to freeze action. If you’re in aperture priority, set a minimum shutter speed in your camera’s auto ISO settings.
4. Choose the right focal length. For portraits, use 85-120mm for flattering compression and background blur. For events, 50-70mm works for group shots and environmental portraits. For indoor sports, zoom to 120mm to get close to the action, but don’t be afraid to zoom out to track fast movement.
5. Focus correctly. For portraits, use single-point AF and focus on the eye nearest to you. For events, use zone AF to catch moving subjects. For sports, use continuous AF (AI Servo / AF-C) with a wide area or zone mode to track athletes.
6. Compose with care. For portraits, place the subject off-center using the rule of thirds. For events, capture candid moments and interactions. For sports, leave space in front of the subject to show motion direction.
7. Use burst mode for action. For events and sports, shoot in continuous high-speed mode to capture the decisive moment. For portraits, a single shot is fine, but a short burst can help catch a natural expression.
8. Check exposure and adjust. Use exposure compensation if images are too dark or bright. In manual mode, adjust shutter speed, aperture, or ISO as needed.
9. Review and refine. After a few shots, check the histogram and zoom in on the LCD to confirm focus and sharpness. Adjust settings if necessary.
10. Use a monopod for stability. For indoor sports or long events, a monopod reduces fatigue and camera shake, especially at 120mm.

Common Mistakes

• Shutter speed too slow. Blurry images are the #1 issue. Always prioritize shutter speed over ISO or aperture.
• Using too narrow an aperture. Indoors, f/8 will underexpose and cause slow shutter speeds. Keep the aperture wide open.
• Focusing on the wrong spot. For portraits, missing the eye ruins the shot. For sports, focusing on the background instead of the athlete.
• Not raising ISO enough. Many beginners keep ISO at 100 and get dark, blurry photos. Don’t be afraid of noise – a sharp noisy photo is better than a blurry clean one.
• Zooming too much. At 120mm, even slight movement causes shake. Use a higher shutter speed or a monopod.
• Ignoring white balance. Indoor lighting can make images yellow or green. Set a custom white balance or shoot RAW to correct later.

Tips

• Use back-button focus to separate focusing from the shutter button, making it easier to track moving subjects.
• Shoot in RAW to have more flexibility when adjusting exposure and white balance in post-processing.
• For portraits, step back and zoom in to 120mm – it flatters facial features and creates a creamy background.
• For events, anticipate moments – watch for interactions, laughter, or reactions, and be ready to shoot.
• For indoor sports, pre-focus on a spot where action will happen (like a goal or basket) and wait for the subject to enter the frame.
• Keep your lens clean – smudges cause flare and reduce contrast.

Troubleshooting

• Images are blurry even with a fast shutter speed. Check that your lens’s image stabilization is on (if available). Also, ensure your focus mode is correct – for moving subjects, use continuous AF, not single.
• Photos are too dark. Increase ISO, open the aperture wider, or slow the shutter speed (if subject is still). If you’re in aperture priority, use exposure compensation.
• Photos are too bright. Lower ISO, narrow the aperture, or increase shutter speed. In manual mode, adjust accordingly.
• Autofocus hunts or fails. In low light, switch to a single focus point and aim at a high-contrast area. If it still fails, focus manually.
• Colors look wrong. Set a custom white balance using a gray card or a white object under the same light. Or shoot RAW and fix in post.
• Lens is heavy and tiring. Use a monopod or rest the lens on a railing or table when possible. Take breaks if needed.

Frequently Asked Questions

Is a 50-120mm lens good for portraits?

Yes, especially at the longer end (85-120mm). It provides flattering compression and allows you to blur backgrounds easily.

Can I use this lens for indoor sports without a flash?

Yes, but you’ll need a fast shutter speed (1/500s or faster) and a high ISO (1600-6400) to compensate for low light. A lens with a wide aperture (f/2.8) is ideal.

What’s the best aperture for events?

Use the widest aperture (e.g., f/2.8) to let in more light and blur distractions. If you need more depth of field for group shots, stop down to f/4 or f/5.6, but be prepared to raise ISO.

Should I use image stabilization?

Yes, if your lens has it, turn it on for static subjects. For panning with moving subjects, turn it off (or use panning mode) to avoid overcorrection.

How do I get sharp focus on a moving athlete?

Use continuous autofocus (AI Servo / AF-C) with a wide or zone AF area. Keep the focus point on the athlete’s body and shoot in burst mode.

Is 120mm long enough for indoor sports?

It depends on the venue. For smaller courts or arenas, 120mm may be enough. For larger fields, you might need a longer lens, but you can crop in post if needed.

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