How to Choose Neutral Density (ND) Graduated Filters
Landscape photography can be breathtaking, but getting the perfect shot often requires more than just a good eye. One essential tool is the neutral density (ND) graduated filter. In this guide, we’ll explore how to choose the right ND filter for your landscape shots, making the process easier and more rewarding.
All too often tutorials for choosing neutral density graduated filters or ND grads appear in photography magazines but they’re not giving you all of the information you need to choose the correct density.
When I first started learning photography I found it extremely irritating when I asked others “How do I choose the correct grad?” and got various responses that led to nothing.
If you follow along in the video then I will show you three different methods on how to choose neutral density graduated filters. Each step is more complex but if you listen carefully to the last method then you’ll fully unlock the mysteries you are looking for.
The photography magazines focus on you learning how to meter from a mid-tone. But what is that elusive mid-tone? The tutorial will give you a far better way of learning how to see tones in the landscape.
Hopefully what I’ve done with this tutorial video is give you the tools to learn how to use ND grad filters. If you feel that you still not getting it then please comment on the video and I’ll try my best to make things clearer.
Understanding ND Graduated Filters
Neutral-density graduated filters help balance the exposure between bright skies and the darker foreground. They have a darker area at the top that gradually fades to clear, allowing you to darken the sky without affecting the foreground.
Why Use ND Graduated Filters?
Have you ever taken a photo of a stunning landscape, only to find the sky is too bright? That’s where ND filters come in. They reduce the light in the brighter areas, helping you capture a more balanced image.
Three Simple Methods to Choose ND Graduated Filters
Choosing the right ND graduated filter can seem tricky, but it doesn’t have to be. Here are three methods that will simplify the process.
Method 1: Live View Exposure Check
The first method is quick and straightforward. Here’s how to do it:
- Set Up Your Camera: Use a Canon 6D (or any camera with live view).
- Switch to Live View: Turn on the live view and set your camera to ISO 100 and f/11.
- Check Foreground Exposure: Look at the foreground and adjust the shutter speed to get a good exposure.
- Check Sky Exposure: Change the shutter speed to see how many stops the sky differs from the foreground.
- Calculate the Difference: For example, if there’s a 2-stop difference, you’ll need a 2-stop ND grad filter.
This method gives you a quick way to select the correct filter based on your scene.
Method 2: Using Multi-Segment Metering
This method helps you get readings from various parts of the scene.
- Select Multi-Segment Mode: Set your camera to this metering mode.
- Meter the Ground: Point your camera at the ground, including different tones like grass and dirt. Take a reading.
- Meter the Sky: Now, point your camera up toward the sky and take another reading.
- Find the Difference: Compare the readings. For example, if the ground is 1/8 sec and the sky is 1/60 sec, the difference is three stops. This means you need a 3-stop ND grad filter.
This method involves more steps but provides a more thorough approach to metering.
Method 3: Finding Mid-Tones
Finding the right mid-tone in your scene can help determine the necessary ND grad filter.
- Identify a Mid-Tone: Look for mid-tones in your foreground, like well-lit grass or dark tarmac.
- Meter the Mid-Tone: Point the camera at the mid-tone and take a reading.
- Adjust for the Sky: Then, meter from the sky. If you find the sky is much brighter, you’ll need to use an ND filter.
For more challenging scenes, try this alternative: use a black patch (like felt) to meter from and then adjust based on that reading.
Conclusion
Choosing the right ND graduated filter for landscape photography doesn’t have to be confusing. With these simple methods, you can confidently select the right filter for your shots. Always remember to check the differences in exposure between the foreground and sky. This will lead to beautifully balanced images. If any part of this guide is unclear, don’t hesitate to ask for help!
Of course, you can always come on one of my photo tours and I can give you more instructions on their use. If you want more personalized instruction then I am available for 1 to 1 tuition to.
Popular manufacturers of ND grads are: