How to Stop Getting Blurry Photos: Why Shutter Speed Matters

Sharp motherhood family photo showing shutter speed impact on family photography

I used to come home from sessions with soft, blurry images and think I was missing focus, that my focal point must be off.

A lot of the time it was shutter speed.

The standard rule is to keep your shutter speed above your focal length. Shooting at 135mm, stay above 1/135. That is a fine starting point, but it assumes a still subject, and in a family session your subjects are not still, and neither are you; kids are running, toddlers are launching themselves at you with zero warning, parents are swaying while holding a baby, wind is moving hair, and you are stepping sideways and adjusting your angle the whole time.

The rule I actually use is double the focal length as my minimum shutter speed. Shooting at 135mm, I want at least 1/250. At 200mm, never below 1/400. Toddlers running at me, 1/800 minimum because I want that joy completely frozen and a blur where a moment was is the worst thing to come home to.

Toddler running toward camera frozen sharp at fast shutter speed, outdoor family photography session

How to Actually Use Shutter Speed in a Session

I shoot so I always have a high enough shutter speed to get things in focus. I am not adjusting on the fly mid-session trying to catch up to movement. I set it before I raise the camera and I commit to it.

I love practicing with my clients’ dogs running at me and shooting burst style. Dogs move the same way toddlers do, and they do not care if you miss. It is one of the best ways to train your eye and your settings for the kind of unpredictable movement that happens in a real family session.

Dog running toward camera frozen sharp at fast shutter speed, outdoor family photography session

What Motion Blur Actually Looks Like

Motion blur has a directional smear to it. The subject moved during the exposure, or you moved, and the image recorded that movement. The fix is always shutter speed.

A focus miss looks completely different. The image is sharp, just sharp on the wrong thing. A shoulder instead of an eye. That is a focus issue, not a shutter speed issue, and it is worth knowing the difference because the fix is completely different.

Camera shake is a uniform softness across the frame. Also a shutter speed fix, but from the camera moving in your hands rather than the subject moving.

When you come home with soft images, look at which kind you have. It tells you exactly what to adjust next time.

Shutter Speed Numbers by Focal Length for Family Photography

These are the numbers I actually use in real sessions.

At 85mm I want 1/250 or faster.

At 135mm at least 1/250 and realistically closer to 1/400 most of the time.

At 200mm never below 1/400.

Toddlers running toward me, 1/800 to 1/1600 regardless of focal length. I want that moment completely frozen.

Focus Modes When Kids Are Moving

I toggle my focus mode depending on what is happening in front of me. A lot of photographers switch to auto focus or wide area focus when kids are moving and truly none of those are wrong. The focus mode that works is the one that works for you in that moment with that family.

What matters is that you are not locked into one setting for every situation. Moving kids need a focus mode that tracks movement. A still family grouping needs precision. Toggle between them as the session moves.

ISO Is Not the Enemy

A lot of us think that if we keep ISO as low as possible, we are doing the right thing. But that trade-off costs you sharpness.

Raise your ISO to support your shutter speed. A sharp image with a little grain is always better than a soft one with clean ISO. You can work with grain in editing. You cannot fix motion blur.

Most cameras handle ISO 800 to 1600 really well. Start raising it earlier than feels comfortable and you will stop sacrificing shutter speed to keep ISO artificially low.

Frequently Asked Questions About Shutter Speed for Family Photography

Will a faster shutter speed make my images darker?

Yes, a faster shutter lets in less light so you will need to compensate. Open your aperture a little, raise your ISO, or both. Protect shutter speed first and use the other settings to keep your exposure correct.

What if I am shooting in low light and cannot get a fast shutter?

Raise your ISO. That is exactly what it is there for. A sharp image at ISO 1600 is better than a soft one at ISO 200.

Does this apply to babies too?

Toddlers require the fastest shutter speeds because they move unpredictably. Babies being held are easier since their movement comes from the parent swaying, but stay above 1/250 to be safe.

My images are still soft even with a fast shutter. What else could it be?

Check whether you have motion blur or a focus miss. Motion blur has a directional quality. A focus miss is sharp on the wrong thing. If it is a focus miss, that is a separate issue from shutter speed entirely.

The Practical Version

Set your shutter speed before you raise the camera. Double the focal length. Raise ISO to support it. Toggle your focus mode for what is actually happening in front of you.

The goal is to not be thinking about any of this during the session. Set it, trust it, and put your attention on the family in front of you.

If you want to go deeper on how all your exposure settings work together outdoors, That is exactly what I teach inside Enlighten – feel confident shooting outdoors in any light!

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Join us for the Family Retreat and get ready to fall in love with your family sessions!