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It’s easy to get caught up in the fast nature of photography, technology, instant results, presets, etc. But what happens when you slow your photography right down?
This tutorial will introduce you to the 101s of daytime long exposure photography and share the exact steps you can follow to create your very own long exposure photographs.
long exposure photography can be defined in two ways. A traditional description would class it as taking photographs with the intent to deliberately capture the effect of time and display moving objects in a different way to how our eyes are used to seeing them.
But for those of a more literal-mindset, long exposure photography is a brilliant way of photographing atmospheric landscapes, whilst being able to enjoy a cup of tea and a biscuit – all at the same time.
Now, if that sounds like your type of photography, I encourage you to settle in and read on.
The very nature of long exposure photography is pretty slow paced. It forces you to take your time, which is excellent practice for your framing and compositional skills. And because you literally can’t rush the shot, it makes you think about the light, your subject, and your compositional techniques before you invest several minutes of your time capturing the image.
It’s worth noting that there is no specific shutter speed that defines the crossover from “typical photography” to long exposure photography. It’s not the duration of your shutter speed that defines your image as a long exposure photograph. Instead, it’s your intention to capture moving objects using longer exposure times than necessary that makes it a long exposure photograph.
“So, why should I take a photo using a slow shutter speed? Won’t that make it blurry?”
Yes, precisely. Using a long exposure technique is typically reserved for times when you want to selectively blur objects in your images. Common examples would be to capture flowing water, like the ocean or a waterfall. It’s also used to capture the movement of clouds or stars in the night sky.
A long exposure photograph reveals the passing of time and conveys motion in a way that your eyes are simply unable to see at the time. Long exposures turn clouds into whispers, water into silky-looking glass, and people into otherworldly ghost-like beings.
Long exposure photography allows you to capture stillness and a sense of motion in a single frame. The contrast between these elements creates a sense of mystery and adds a surreal atmosphere to your images. It’s precisely this playful mix of the fluid and the still that makes long exposure photography beautiful, strong, and mildly addictive – or maybe that’s just the cup of tea.
Anyway, here’s what you need to know to take a long exposure photograph.
To capture those ethereal tones and silky motions in your images, you need to use a slow shutter speed. The trouble with using a slow shutter speed during the day is that it lets in a lot of light. So much light in fact, that it will inevitably overexpose your image.
To counter this, you will need to use a Neutral Density (ND) filter to make long exposure photographs during the day.
ND filters essentially sit in front of your lens and block out the light. Think of them as a fashionable set of sunglasses for your lens. And because the ND filters reduce the amount of light that hits your camera sensor, you can use shutter speeds up to several minutes long without overexposing your images – even in bright conditions.
The exact length of your exposure will depend on the lighting conditions and the strength of the ND filter you use. ND filters are typically measured by the stops of light they are able to block out and are usually available in increments of 3, 6, 10, or 16-stops.
Nisi, Lee Filters, and Formatt-Hitech are among the popular brands of ND filters, although there are many others available for a variety of budgets. ND filters come in either a circular format (these screw onto the front your lens) or a rectangular format, which requires the use of an additional filter holder to mount them to your lens.
As a general rule, the more light your ND filter is able to block out, the longer your exposure will need to be to achieve a balanced exposure. And the longer your exposure, the more dramatic the effect will be in your final image.
You may be aware that when you use slow shutter speeds, the smallest bit of camera movement can throw your image out of focus and cause it to look a little blurry. This is especially true in long exposure photography.
Given that your camera will be taking several seconds or several minutes (if you’re using a 10 or 16 stop ND filter) to complete a single shot, it’s crucial to ensure it doesn’t move a millimeter during the exposure.
It would be nearly impossible to achieve this by hand. Therefore, it’s a good idea to get your hands on a sturdy tripod. This not only ensures your camera will remain still throughout the entire exposure but more importantly, it frees up your hands, so you can have a sip of your tea whilst your camera is hard at work.
In addition to your ND filters and tripod, here’s a checklist of essential equipment you’ll need for long exposure photography.
Every item on this list plays an important role in capturing a long exposure photograph. Now here’s precisely how you can capture one.
Unlike a typical day of photography, long exposures don’t afford you the luxury of being able to rattle off 1,200 images in a few hours. Instead, you’re likely to return home with only a handful of good photographs after a day of long exposure photography.
So, before you grab your gear and set off in search of ethereal landscapes and mind-bending architecture, it’s well worth investing your time. Research the location and environment so you can make the most of your time in the field.
If you’re planning on shooting a landscape, cityscape, or architecture, take a look at your local weather forecast to see what the cloud cover will be like. Anything over 40% cloud cover should give you ideal conditions to capture a silky sky.
Creating a long exposure seascape, on the other hand, doesn’t necessarily need a lot of cloud coverage (although, cloudy conditions over water often produce great results). It’s worth researching the water conditions because – like the clouds – the greater the movement of the water, the greater the effect of your long exposure photographs.
Use Google Maps and street view to go for a “virtual walk” around your location. Doing so helps you to familiarize yourself with the area and scout out potential compositions for your images. Essentially, you should know precisely where you are going, how you will get there, where you will park, how much daylight you will have and in which direction you need to walk to ensure you take full advantage of your time and the conditions.
There is nothing more heart-breaking than spending the time to scout out the perfect location and setting up your camera only to realize that you have left your ND filters at home or your camera battery is at 27%. Be sure to charge up all of your batteries (including your smartphone) and pack your camera bag using the equipment checklist above.
Set your camera to shoot in RAW format. Long exposures tend to have a blue or magenta color cast caused by the ND filters. Shooting in RAW allows you to easily correct the white balance in post-processing.
Spending your time trying to calculate what your exposure length should be with a 16-stop ND filter might not sound like much fun to you. Long exposure photography is all about taking time out to soak up your environment and enjoying the views – not solving algorithms.
Installing a “Long Exposure Calculator” app on your smartphone will save you time and make calculating your shutter speed much easier when you’re out in the field. Here are a couple of popular suggestions for IOS and Android users.
It’s a good idea to install the app on your smartphone at home before heading out – just in case you later find yourself in an area with no mobile coverage to download the app.
By the time you’ve prepared your gear, researched the area, and arrived at your location, you’d be forgiven for wanting to unpack and get shooting straight away. Instead, you’ll find that holding off for just a few minutes and allowing yourself to explore the scene often produces more favorable results.
Pick up your camera (without the tripod) and work the shot. Take note of the weather, light, and direction of the water, clouds, lights, or traffic. What are the characteristics of the scene? How does the mood feel? What angle best captures all of this? What are you going to include in your frame?
Once you have decided on the perfect angle, it’s time to set up your tripod and mount your camera (without the ND filter) to compose and frame the shot. Ensure your tripod is locked in place and your camera is tightly secured. Now is also a good time to attach your remote shutter release cable to your camera.
Switch your camera into Aperture Priority mode and set your aperture to somewhere between f/7.1 and f/11. As a rule of thumb, this range will fall close to your lens’s sweet spot and provide you with a deep depth of field to ensure your image is sharp throughout.
As I’ve mentioned, noise and camera shake can be problematic in long exposure photography. Therefore, adjust your ISO to 100 to minimize the amount of noise and turn off Image Stabilization on your lens to reduce the amount of internal camera shake.
Focus your lens, ensuring your subject is sharp from back to front. When you are happy with your focus point, switch your lens over to manual focus. This essentially safeguards your focus point and prevents accidental re-focusing when you trigger the shutter.
Use your viewfinder cover (duct-tape or sticky-tac will work) to cover up your viewfinder. This will prevent light from leaking into your camera and ensure that your camera gives you an accurate metering.
With your viewfinder covered and your camera still in Aperture Priority mode, take a test shot to obtain the base shutter speed. It’s the shutter speed from this test shot that will form the basis of your long exposure calculations.
It’s a good idea to review the test shot to ensure the exposure looks good and everything is perfectly in focus. When you’re happy with your test shot, check the metadata and make a mental note of the shutter speed.
Switch your camera mode from Aperture Priority to Bulb Mode and set your ISO and aperture to mirror the exact same settings as your test shot.
Bulb Mode allows you to keep your shutter open as long as you hold down your camera’s shutter button. However, standing next to your camera and keeping the shutter button held down with your finger isn’t ideal. Not only would this cause lots of camera shake, it would also make it nearly impossible to enjoy a cup of tea on the job (it’s clear where my priorities lie).
This is precisely why you’ll need a shutter release cable with a locking function. The lock plays the role of your finger and keeps the shutter button held down until you decide to release the lock, thus minimizing the possibility of camera shake.
Enter the shutter speed from your test shot into the long exposure calculator app you installed on your smartphone in step 1.
You will then need to set the filter density to match your ND filter. For example, if you’re planning to use a 16-stop filter, you would enter 16-stops into the app.
The app will then calculate the length of your long exposure. It’s worth noting here that this time is approximate. It doesn’t account for a change in weather conditions during the exposure or the quality of your ND filters. I use Lee Filters and from experience, I find adding approximately 25% to the app’s suggested exposure time works well.
Load your long exposure time into your smartphone’s timer. You will trigger this at the same time you commence the long exposure to keep track of timing.
Mount your ND filters to your camera. Be careful not to adjust the focus or zoom rings of your lens in the process. It’s a good idea to double check your lens is still set to manual focus.
If you’re using a DSLR, enable Live View or the mirror lock-up function. These features lock your camera’s mirror in the up position, which reduces internal camera vibrations when you trigger the shutter.
Carefully cover your camera with a dark cloth or a hat, being careful not to adjust the zoom or focus rings on your lens. This will help to prevent light from leaking into your camera during the exposure.
Now it’s time to create your ethereal masterpiece. The aim here is to simultaneously trigger your smartphone’s timer with one hand (this will keep track of your exposure time) and with your other hand, lock the shutter release cable to hold open your camera’s shutter. If you’re like me, and the mere thought of doing two things at once confuses you, you can simply trigger them one at a time.
All that’s left for you to do at this point is make yourself comfortable and enjoy that cup of tea! Finally! And because you set a countdown timer on your smartphone, its delightful little chime will alert you when it’s time to get up to release the lock on your shutter release cable. Thereby closing the shutter and completing your long exposure photograph.
So, what do you get after spending a leisurely afternoon in front of a beautiful scene sipping from your thermos and nibbling on a cookie? Well, it’s likely you’ll return home with an image that looks something like this.
The very nature of creating long exposure photographs is to slow down. It encourages you to step away from the rapid-fire approach and have fun creating something that you wouldn’t ordinarily be able to see. That’s what long exposure photography is all about.
By now, I’m hoping this article has you reaching for your ND filters and checking the weather forecast – I’m sure you’ll love giving it a try. In case you need a short reminder whilst you’re out in the field, here’s a snapshot of everything we’ve covered.
If you have any questions, please ask. And it would be great to see your long exposure photographs, so please share them in the comments below.