Scene Composition and Grid Lines

Your camera's grid lines will improve your pictures

Use Your Drone’s Grid Lines Option

Today we’ll touch on scene composition and grid lines. Digital cameras often have a feature that adds grid lines to the viewfinder. The DJI Go application also has this feature, which is turned on within its camera settings menu on your mobile device. Grid lines are a useful tool – they appear on your mobile display but they won’t appear on the actual photos and videos that you take.

Grid lines will help you compose your photos and videos by reminding you to check the horizon and land features so they square up in the frame. It can be a real letdown to take the perfect shot and then find it slanted by a few degrees.

Be Certain Your Drone’s Horizon View is Level on Your Display

If you’ve added a filter to the camera lens, you may find the added weight causes the horizon to tilt a little to the left or right. This is easily fixed by doing a gimbal calibration. Just make sure the aircraft is on a level surface so the horizon will be level in your display.

Tip for Composing Your Subject

Formal photographs are often taken with the subject centered, but for most other photography the image is more interesting if the subject is placed off-center. We recommend placing the subject approximately 1/3 from the edge of the frame and facing towards the center.

Grid Lines Have Many Other Uses

Another useful application for grid lines is for setting up pre-programmed function runs, such as way points. The menu blocks part of the camera view, but with grid lines you can see the center point of the camera’s view.

Try grid lines the next time you’re out flying your drone.

Fly Safe!

Exposure Compensation for Photos and Videos

Too dark?  Too light? Color is off? Whether your drone is using automatic or manual exposure, you’ll almost always have to use post-processing to get the right brightness, contrast, and color saturation. Setting EV to zero and using the histogram is great, but backlighting from the sun and bright horizons will turn the best landscape photos and videos into silhouettes.

Example of an under-exposed photo taken by an aerial drone

Before

Example of adjusting a photo's brightness, contrast, and color saturation

After

Adjust Exposure With Photo/Video Editing Software

No worries though; most of your under- or over-exposed photos can be corrected in post-processing. There are a number of commercial software applications on the market that will assist you with this. Choose one and get familiar with exposure compensation. The results will be well worth the effort.

A simple but effective application known as Microsoft Picture Manager comes bundled with their Office Suite. Even for extreme cases of under/over exposure, adjustment will enable you to salvage images you thought were destined for the recycle bin. I like Picture Manager and Windows 10’s Movie Maker because they’re intuitive, quick and efficient.

For our commercial editing, we like Adobe’s Photoshop Elements for stills and Corel’s VideoStudio X10 for videos, but the same principles can be put to work with the more basic (but effective) Microsoft products.

Aerial Drone Camera Settings

Drone pilots, you already know that the best picture is the one that won’t take much post-processing. I’ve found that you can get great results letting the drone’s camera take stills using Automatic Exposure (AE) and tapping the screen where you want the exposure to be measured. The only lens filter that you should use is an ultra-violet haze (uv haze).

For videos that pop, the golden rule is to film with a shutter speed of at least double the frame rate. So, if you’re recording video at 30 frames per second, your shutter speed should be 1/60th of a second, or faster. ISO should also be low, in the range of 100 to 200. Look for an EV value near zero.

You can achieve the above video settings automatically or manually, but for drone cameras with a fixed F/stop you’ll need to use neutral density (ND) filters. Choose a filter, say ND4 or ND8, depending on how bright it is. I prefer AE for video as well, and use the ND filter that gets my drone’s camera closest to the above settings.

It’s a good day when your stills and videos come out perfect. The rest of the time (read most of the time) count on using photo and video editing software to get optimal results.

Fly Safe!