High ISO Bird Photography: Don't Be Afraid of Noise
How to get better bird photographs in low light.
We've all been there. You're deep in a rainforest, the light is barely filtering through the canopy, and suddenly you hear a beautiful bird and it's just up ahead. It's the perfect opportunity, but there's one problem. Your camera is telling you that you'll need to push your ISO much higher than you'd like.
Do you put the camera down?
Hell no!! You take the shot!
As bird photographers, we can be little obsessed with image quality and capturing all those fluffy feathers in all their glorious detail - and that means keeping our ISO as low as possible. But the reality is that some of our most exciting photographic opportunities happen in less-than-ideal lighting conditions.
Whether you're photographing birds in a dark rainforest, working in the soft light before sunrise or capturing a nocturnal species at dusk, although not optimal for image quality, sometimes a high ISO is simply unavoidable.
Some species spend so much of their lives in dark, heavily vegetated habitats that you're unlikely to photograph them without pushing your camera's ISO well beyond your usual comfort zone.
The trick isn't to avoid high ISO altogether. It's to understand how to use it effectively and get the best possible results from the light you have.
Here are my tips for making high ISO work for you.
High ISO? Widest Aperture Always
Probably goes without saying, but if you're still getting your head around aperture:
The lower the number > the wider the opening > more light reaching your sensor.
If you'd like to know more about aperture/depth of field you can read my post.
Trim the Fat From Your Shutter Speed
One of the first things I look at when shooting in low light is my shutter speed. Am I using a faster shutter speed than I actually need?
For a relatively stationary bird, you may be surprised at how low you can go, particularly if you're using a modern mirrorless camera with effective image stabilisation.
Rather than automatically shooting at 1/1000 of a second, experiment with 1/250, 1/125 or even slower, depending on your equipment, focal length and the bird's behaviour.
Every time you halve your shutter speed, you're allowing twice as much light to reach the sensor, potentially reducing your required ISO by one full stop.
Of course, there's a trade-off. The slower your shutter speed, the greater the risk of blur. It's all about finding the right balance for the situation.
Take More Shots
When you're working with slower shutter speeds, don't rely on a single frame or even a single sequence. Even with excellent technique and image stabilisation, small movements can introduce blur. And you might not notice it until you get home and download to a bigger screen.
Taking several sequences in short bursts increases your chances of capturing a beautifully sharp image.
My mode of operation is to take a sequence of about 6-8 images. I shoot at 20 frames per second, so that's just a quick blip of the shutter. Tiny pause and then take another series.
If you have a tripod or monopod available, use it. Supporting your camera can make a considerable difference, reducing camera shake from the equation, if not removing it altogether. Particularly useful when you're working with a heavy telephoto lens.
Pay attention to your own technique, too. Keep your elbows tucked in, adopt a stable stance and gently squeeze the shutter rather than jabbing at it. Press your eye into the viewfinder, every bit of stabilisation helps.
Needing help with the finer points of bird photography? I work with small groups over zoom in my Natural BirdCraft Mentorship, to help develop your creative eye and refine your processes, from field craft to editing.
Expose to the Right (ETTR)
One of the biggest mistakes you can make when photographing at high ISO is underexposing your image. I made this mistake on repeat when I started photographing birds:
I used to think 'low light - I'll underexpose rather than raising ISO, because I don't want to lose image quality'. Wrong move.
Although high ISO can make noise more visible, underexposure can make the problem considerably worse, particularly when you attempt to brighten the shadows during post-processing.
ISO is essentially a 'volume knob' for the available light on your sensor. The less light you have to begin with, the more using 'the volume knob' of ISO will reduce the quality of the image overall. Underexposed images at lower ISO can present with a surprising amount of noise.
This is where the Expose to the Right (ETTR) technique becomes particularly useful.
The idea is to capture as much light as practical without clipping highlights. By positioning your exposure towards the right-hand side of the histogram, you can maximise the amount of useful image information recorded by your camera.
But ETTR isn't just about making every photograph brighter. Pay attention to your highlights, particularly if your subject has white feathers or other bright areas. Your camera may have a highlights clipping (the zebra stripes) which can be very helpful in this instance to help identify areas that are becoming too bright.
Aim for a bright exposure without losing important highlight detail, particularly in white or pale-coloured feathers."
One final tip: don't worry if a few tiny specks of highlights, or background areas such as reflections on water or light coming through trees are overblown. It's the loss of important detail in your subject that you really want to avoid.
It's also important to remember that increasing ISO alone doesn't increase the amount of light reaching your sensor, nor does it make your camera more sensitive to light. That popular misconception harks back to the days of film, where higher ISO films literally were more sensitive to light, but it doesn't directly translate to modern digital cameras.
The greatest benefit comes from collecting more light through your aperture or shutter speed whenever possible.
If you're already using your widest aperture and slowest practical shutter speed, it's better to increase your ISO to achieve a suitable exposure rather than taking an unnecessarily dark image.
Wait for the Moment of Stillness
When the light is poor, understanding your subject's behaviour becomes even more important.
Rather than attempting to photograph a bird that's constantly moving, watch closely and learn to anticipate those oh-so brief moments of pause.
Birds will stop momentarily between feeding, preening or moving through the vegetation. These little pauses can provide just enough time to capture a sharp image at a slower shutter speed.
Watch for patterns in their behaviour and be ready to press the shutter when everything comes together.
This is also where realistic expectations become important. Low-light conditions generally aren't ideal for photographing birds in flight or capturing fast action, particularly when you're already pushing the limits of your equipment.
Concentrate on portraits, interesting poses and quieter behavioural moments instead.
You may find that slowing down and being more selective produces far more interesting - and better quality - photographs.
Shoot in RAW
If there's one piece of advice I'd consider essential for high ISO photography, it's to shoot in RAW. I have shot JPEGs in the past (see my Emu-wren photo above), but there is a difference in fine detail quality and 'editability'.
RAW files retain considerably more image information than JPEGs, giving you greater flexibility when adjusting exposure, recovering highlights and shadows, and reducing noise during post-processing.
JPEGs have already undergone in-camera processing, including sharpening and noise reduction. This can remove fine detail that you may want to preserve, particularly in delicate feather textures.
When you're working with challenging light and high ISO, you want as much control over the final image as possible.
RAW gives you that control.
Invest in Good Noise Reduction Software
Modern noise reduction software has transformed what's possible with high ISO photography and has come in leaps and bounds in the last 5-10 years.
Programs such as Adobe Lightroom, DxO PureRAW and Topaz Photo AI use sophisticated processing to distinguish between image noise and genuine subject detail.
The results can be remarkable, particularly when working with photographs captured at ISO 6400, 12800 or even higher.
However, noise reduction isn't a magic solution. It can't recover detail lost through camera shake, subject movement, poor focus and underexposure. Excessive processing can leave feathers looking unnaturally smooth or artificial - 'PBS ' - plastic bird syndrome!
My advice is to invest in a good-quality noise reduction tool, but learn to use it with a light touch.
Pay particular attention to the eyes, beak and fine feather detail. These are the areas where preserving natural texture is most important.
EDITING TIP: Trying masking the bird and applying denoise to the background only, or using less denoise on the bird to retain details.
And remember, a little residual noise is often preferable to a photograph that's been processed to within an inch of its life!
Know Your Camera's Capabilities
Not all cameras handle high ISO in the same way, and it's worth taking the time to understand the limitations of your particular equipment.
Try photographing a stationary subject at progressively higher ISO settings, keeping the exposure appropriate for each shot. Examine the results at full resolution and experiment with your preferred noise reduction software.
You might discover that ISO 6400 produces perfectly acceptable results, or that photographs taken at ISO 12800 are far more usable than you expected.
It's also worth remembering that your intended output matters. An image destined for social media doesn't necessarily require the same level of fine detail as one intended for a large photographic print.
Understanding what your camera can deliver will help you make better decisions in the field, rather than hesitating when an opportunity presents itself.
The Bottom Line: A Noisy Photograph Is Better Than No Photograph
Ultimately, bird photography is about capturing moments, not achieving technically perfect camera settings.
Some of the most fascinating species inhabit dark forests, dense undergrowth and other environments where beautiful, golden light is little more than wishful thinking.
If we limit photography only to when the conditions are perfect, we're going to miss an enormous number of opportunities.
By refining your technique, understanding exposure, anticipating behaviour and making good use of modern processing software, you can produce excellent photographs in conditions you might once have considered impossible.
And while it's always worth striving for the best possible image quality, don't become so preoccupied with avoiding noise that you forget why you're out there in the first place.
A beautifully captured moment with a little noise will always be worth more than the photograph you never took.
Happy birding! xx Sonia
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