Your Still Camera Is Also a Video Camera — But Should You Use It That Way?

Pressing the red button is easy. Making good video is not.

A photograph of a sailing boat can capture a wonderful instant: the hull leaning, the crew balancing and sunlight catching the water. A film has to do something more. It needs to help us understand what is happening, where to look and why we should keep watching.

That difference matters more than the resolution printed on the camera box.

With equipment such as my Canon EOS R5 C, photography and filmmaking share a body, lenses and much of the same knowledge. But they ask different things of the person behind the camera.

The question is not simply whether your still camera can record good video. It is whether you are ready to use it as a filmmaking tool.

One body, two ways of working

The R5 C makes this overlap particularly clear. It combines 45-megapixel still photography with Cinema EOS video functions, including 8K recording, professional recording formats and active cooling. It is a camera designed to work seriously in both disciplines. Canon UK Store

Those specifications create possibilities. They do not decide how to tell a story.

For the work I do across sailing, science teaching and music, the attraction is obvious. One system can produce a photograph for a blog, a close-up for a demonstration and footage for a longer film.

However, a camera cannot be taking a carefully timed photograph and recording an uninterrupted video sequence at the same moment. At an unrepeatable event, deciding which job matters is part of the preparation.

A photograph captures a moment; a film needs a sequence

Imagine filming someone preparing a boat.

A single photograph might show the sailor beside the rigged boat. A useful video sequence could show:

1. A wide view establishing the boat and its surroundings.
2. A medium shot of the sailor preparing the rigging.
3. A close-up of hands threading a rope.
4. A detail of the fitting as the rope tightens.
5. A final view of the boat ready to launch.

Each shot adds information. Together, they give an editor something to work with.

This is the change in mentality I find most interesting: instead of asking, “Have I got the picture?”, I need to ask, “Have I got enough pictures that belong together?”

Start recording before the important action and hold the shot afterwards. Those spare seconds give you room to make a clean edit.

Frame rate: decide what the movement should feel like

Frame rate describes how many pictures are recorded each second. It affects the appearance of movement and your options in the edit.

For a straightforward UK project, these are useful starting points:

Recording choice	Useful for	What to remember
25 frames per second	Presentations, interviews and general storytelling	A practical starting point for a 25 fps finished film.
50 frames per second	Smoother action or footage intended for slow motion	Conform to 25 fps for half-speed playback.
100 frames per second, where supported	Splashes, rapid movement or mechanisms	Conform to 25 fps for quarter-speed playback; expect greater lighting and storage demands.

Recording at 50 fps does not automatically create slow motion. The relationship between recording and playback rates does that.

For a sailing film, I might use 25 fps for an explanation and 50 fps for a brief detail of spray or a manoeuvre. For a science demonstration, slower playback may reveal movement that is difficult to follow in real time.

Choose the finished film’s frame rate before collecting a mixture of clips.

Shutter speed: sharp photographs can make uncomfortable video

In still photography, a fast shutter speed can freeze action beautifully. In video, very short exposures can make movement look harsh and staccato.

A common starting point is the 180-degree shutter guideline: expose each frame for approximately half its available time.

Frame rate	Starting shutter speed
25 fps	1/50 second
50 fps	1/100 second
100 fps	1/200 second

These are creative starting points, not compulsory settings. A faster shutter can help when analysing movement frame by frame. For ordinary storytelling, some motion blur usually helps movement feel natural.

In the UK, 25 fps with 1/50 second is also a useful starting point under many lights running from a 50 Hz electricity supply. LEDs, dimmers and screens can still produce flicker or bands, so record and inspect a test.

Bright sunshine creates another problem. If you want 1/50 second and a wide aperture, the picture may be overexposed.

A neutral-density filter reduces the light without forcing you to change those choices. Think of it as sunglasses for the lens. The R5 C has no built-in ND filter, so this needs planning.

Autofocus: control the transition as well as the destination

For a photograph, the usual ambition is to get the subject sharply focused at the decisive moment.

For video, the journey into focus is visible too.

The R5 C’s Dual Pixel CMOS AF provides tracking tools, including face and eye detection. These are helpful for a presenter, but autofocus still needs supervision. Canon UK Store

A hand passing in front of a face, another person entering the frame or an object lifted towards the lens can cause a distracting change.

For a teaching video, I would test three things:

• Does focus stay with my face while I gesture?
• Does it move to an object when I deliberately show it?
• Does it return smoothly when the explanation continues?

For a fixed close-up of an experiment or an organ keyboard, manual focus may be more dependable. Focus on the important area, check the image enlarged and make sure the action stays within the sharp zone.

A slightly smaller aperture can also make filming more forgiving. A very blurred background is little help if the demonstrator’s hands keep moving out of focus.

Lenses: consider what happens during the shot

A favourite photographic lens can be excellent for video. But filmmaking reveals characteristics that are easier to overlook in a still image:

• Focus breathing: framing can appear to change as focus moves.
• Motor noise: focusing or stabilisation may be audible to a nearby microphone.
• Zoom behaviour: focus and exposure may change while zooming.
• Handling: a stiff ring or an awkwardly balanced long lens can disturb the shot.

For an explanation in a classroom, a moderate wide-angle view may show both the speaker and the working area. For detail, move to a separate close-up rather than constantly zooming during the explanation.

Long lenses are useful for sailing, but they magnify camera movement as well as the boat. For macro filming, tiny vibrations can become the main thing the audience notices.

Stabilisation: the tripod still earns its place

A sharp handheld photograph proves that the camera was steady enough for one exposure. It does not prove that you can hold a pleasing composition for twenty seconds.

The R5 C has no in-body image stabilisation. Compatible lenses can provide optical stabilisation, while digital stabilisation is available in supported video configurations, with a crop to the image. Canon Camera Museum

Those options do not remove the need for suitable support.

A tripod is particularly valuable for demonstrations, interviews and music recordings. For a moving shot, a monopod or gimbal may be useful, but movement should have a purpose.

On a boat, even a firmly mounted camera moves with the hull. Decide whether that movement helps the viewer experience the sailing or makes the subject difficult to follow.

A still camera position often gives the audience a better view than an ambitious moving shot.

Microphones: the audience needs to hear the story

A beautiful picture with distant, echoing speech can be harder to watch than a modest picture with clear sound.

The built-in microphone is useful for reference sound and atmosphere. It is often too far from the speaker for a clear explanation.

Match the microphone to the job:

Situation	Sensible audio approach
A presenter explaining something	A lavalier or a directional microphone positioned close to the speaker.
A practical demonstration	Clear speech plus separate recordings of useful working sounds.
Sailing outdoors	Suitable wind protection and careful microphone placement.
An organ recital	A stereo microphone arrangement or recorder positioned for the music and room acoustics.

An organ recording illustrates why camera position and microphone position need not be the same. The best view of the player may give a poor balance of instrument and room.

The R5 C provides microphone and headphone connections. Use headphones, watch the levels and leave headroom for unexpected peaks. Canon India

If you record sound separately, make a clear synchronisation mark and check that the recordings stay aligned over a long take.

Remember that slow-motion footage may not provide usable real-time sound. Record atmosphere separately when you need it.

Overheating: reliability is part of image quality

Some still cameras restrict demanding video modes because of heat. Resolution, frame rate, ambient temperature and recording duration all affect the workload.

The R5 C’s active cooling system is a significant part of its design. Canon specifies it for extended recording, including demanding 8K work. Canon Hong Kong

That does not make recording limitless in every practical sense. Battery power, media capacity, suitable cards and operating conditions still matter.

Keep ventilation clear and check whether fan sound reaches your microphones.

Before recording a long recital or interview, rehearse with the actual settings, power arrangement and cards. A five-minute test cannot establish whether the setup will record reliably for an hour.

For an unrepeatable event, a separate camera recording a continuous wide view can provide valuable cover.

Recording formats: choose what you can finish

The R5 C offers Cinema RAW Light, XF-AVC and MP4 options. They serve different workflows. Canon UK Store

RAW offers substantial flexibility but creates demands for storage and processing. Compressed formats can make the route from camera to finished film simpler.

MP4 is a container: the codec, bit depth, resolution and bitrate inside it still determine how easily your computer can play and edit the footage.

Likewise, Log recording is not a button that makes footage look cinematic. Canon Log 3 is intended for a managed colour workflow and normally needs an appropriate transform or grade before standard display.

For a beginner’s blog video, I would start with a standard-looking picture profile and a manageable recording format. Test the full journey through your editor before the important shoot.

Useful principles are:

• Choose 4K when extra detail or reframing will help; Full HD can still be sufficient.
• Use 10-bit recording when you need greater flexibility for colour adjustment and your workflow supports it.
• Match the media to the selected mode’s requirements.
• Plan backups as well as recording capacity.

For scale, a recording at 100 megabits per second uses approximately 45 GB per hour, before small overheads. At 400 megabits per second, that becomes roughly 180 GB.

The highest available setting is useful only when its benefits justify the work it creates.

Try this: make a 30-second film in five shots

Choose a repeatable activity: tying a knot, opening a music score or setting up a simple demonstration.

1. Plan the sequence. Write down a wide shot, a medium shot, two close-ups and an ending.
2. Set up consistently. Try 25 fps and 1/50 second, a fixed white balance and a supported camera. Check exposure and focus.
3. Record each shot for 8–12 seconds. Leave quiet pauses before and after the useful action.
4. Record sound deliberately. Capture a short explanation or useful natural sounds.
5. Edit to around 30 seconds. Keep the action understandable and remove repetition.

Then watch it twice: once with the sound muted to assess the pictures, and once listening carefully to the sound.

Do the shots connect? Does the action make sense? Is anything distracting?

That exercise will teach you more than repeatedly changing recording formats without completing a film.

So, should you use your still camera for video?

Yes—when it helps you make the film you want to make.

A camera such as the R5 C offers a remarkable combination of photographic quality and filmmaking control. It suits work where lenses, lighting and deliberate composition matter.

For a quick clip, a phone may be more convenient. For a long event, a camcorder’s handling, power options or zoom controls may better suit the job. Choose around the recording you need to deliver.

What appeals to me is the opportunity to develop an idea across different media. A photograph can invite someone into an article. A film can show how the process unfolds. Sound can explain, demonstrate or add atmosphere.

The camera can do all three jobs. We still have to decide what each contributes.

Before pressing the red button, ask: what does the viewer need to see next—and what do they need to hear?

That is where a recording begins to become a film.