Photographers have fought against depth-of-field since the beginning. To get more depth of field, we have to use a smaller aperture and that means a slower shutter speed. It’s just the way photography works.
For years, we’ve been able to take photos of a subject, focus in different places, and then blend those photos later to increase our depth-of-field. Then about 10 years ago camera manufacturers started putting focus stacking in the camera. Today, Canon calls it focus bracketing in the Canon R5.
To activate focus bracketing on the R5, go to Shooting Menu 5. The menu then offers options such as how many photos to take and how far to focus into the scene.
A little icon shows on the shooting screen while Focus Bracketing is active. Push the shutter button and the camera rapidly fires a series of photos. It doesn’t blend the photos in camera but provides the RAW files for blending later. I use Photoshop to do my blending. (Instructions are below.)
Notice the tiny imperfections in the photo on the left. Look closely at the tails. See the little blue highlights? That’s where the birds moved their tails. Focus bracketing doesn’t work well on moving subjects.
My instructions for blending a focus bracket (1) Open all the photos in Photoshop in a Layer. In Bridge, highlight the photos then select Tools>Photoshop>Load Files into Photoshop Layers. In Lightroom, highlight the photos then select Photo>Edit In>Open in Layers in Photoshop; (2) Select all the photos once they are in the Layers Pallette; (3) Select Edit>Auto Align; (4) Select Edit>Auto Blend, (5) Select Layer>Flatten.
I suggest you focus a bit closer than needed for your first photo of the series. That way you get some foreground in focus.
Have you tried focus stacking or focus bracketing? Success?
I headed out with the Canon R5 in hand attached to the new 100-500mm lens and 1.4x extender. This would be my first time to try action photography with the R5 and first outing for the 100-500mm.
I decided to work with hummingbirds. These little gems are a challenge for any action photographer. Right now, we’re in the middle of hummingbird migration on the Upper Texas Coast so I knew there would be plenty of subject.
Kleb Woods Nature Park in Tomball, Texas, has 15+ hummingbird feeders this time of year and usually attracts lots of hummers. I wasn’t disappointed. From 12:30 to 2:30 pm on a warm Saturday afternoon I shot 1326 photos. After basic editing in Adobe, I had 494 keepers. I was super happy with 110 of my photos. Not bad for two hours of work.
Overall, I was very pleased with the R5 and 100-500mm lens.
In one feeding series, I shot 49 images as a ruby-throated hummingbird flew in and out to the feeder. The ruby-throat flew in, took a drink from the feeder, hovered, took another drink, hovered, took a drink, hovered , drank, hovered, drank, hovered, drank. Six sips of nectar with hovering in-between. I kept 39 photos out of that session. 39 out of 49, or 80%, is not a bad success rate with hummingbirds.
In another series, I took 90 photos as a hummer visited the feeder. That group had 23 shots that were worth keeping because they were sharp and in focus. That 25.5% or a quarter keepers.
Within about an hour, I figured out settings with the new camera and got into the groove of photographing hummingbirds in flight. I’ve photographed hummingbirds like this hundreds of times, but this was the first time I let the camera take the lead.
I set the R5’s auto-focus and then I let it do the work.
I found the greatest success with (1) Servo, (2) Subject to Detect: Animals, (3) Servo AF 2, (4) Large Zone Horizontal AF. Yes, this last one is a big change for me. (I’ve always been a single-point autofocus person.)
An hour into the shoot, I fired off 22 shots of a male ruby-throated hummingbird during one feeding session. That series lasted less than a minute and I threw away two. Keeper ratio 22 out of 24.
An auto-focus system should be able to do a pretty good job when there are only two objects in a frame: feeder and hummingbird. What happens when the hummingbird is at a bush with foliage in every direction?
I stepped over to a hamelia bush to continue testing the Canon R5’s autofocus capabilities. When a hummingbird flew down to a flower, I took 36 shots and kept 6. That’s only 16% keepers but several of those were tossed in the trash because the bird had its back to the camera.
When a hummer came in to feed on the hamelia and there was a clean background, my keeper rate was 100%. The Canon R5 kept the bird in focus the entire time it visited the flower — and I kept the camera on the bird.
What happened when there were several items in the frame?
In one series of photos, I had a feeder with three hummers hovering around the feeder. The Canon R5 kept focus on the hummer in the center of the frame. It’s autofocus system didn’t get distracted by the hummer on the right edge of the frame or the one on the left.
Through the viewfinder of the R5, we see tiny blue dots flashing on the subject to let us know that the camera’s found the subject and is in focus. These dots are similar to the red dots we see on the Canon 5D Mark IV or the D1X. Nice confirmations to let us know the camera is doing its job.