Testing: Panasonic “Post Focus”

My new Panasonic Lumix DMC-FZ300 features some significant upgrades over my DMC-FZ150 such as a touch-screen LCD, built-in WiFi (enabling remote control of the camera using the “Panasonic Image App“), 49 focus points, and 4K video, to name a few. Perhaps the most intriguing new feature is what Panasonic calls “Post Focus.”

“Post Focus” can be used to change the focus point after a photograph is taken, in camera. OK, that’s astounding! But wait, there’s more.

With “Post Focus” enabled, the camera is used in the same way as when you’re shooting still photos. In reality, the camera records a small movie clip in 4K video at 30 fps (4:3 aspect ratio) every time you press the shutter button.

The 4K movie recording function is used to record roughly one second of MP4 video at 30 frames/second. During this recording, the camera’s autofocusing system scans the lens around the subject, moving from the foreground to the background to cover the entire scene. … It’s like a sophisticated form of focus bracketing and produces a movie clip containing about 30 frames. Source Credit: How the Panasonic Post Focus function works.

One reviewer of photography gear opined the process is too slow to be useful in real-world situations; in contrast, my first impression is the process works surprisingly quickly.

An MP4 file can be opened in Adobe Photoshop in order to export individual frames from the 4K video clip; the files can be saved in either JPG or TIF format. In turn those files can be imported into Photoshop to create a focus-stacked composite image, such as the one shown below.

A plastic toy Pterodactyl, 6.5″ in width.

A toy Pterodactyl was “photographed” at BoG Photo Studio using Panasonic “Post Focus.” One Sunpak LED-160 Video Light was used to light the scene. 30 individual frames were extracted from the resulting MP4 video, and saved as TIF files; Adobe Photoshop was used to create the preceding focus-stacked composite image.

I think Panasonic “Post Focus” shows great potential for enabling the production of high quality focus-stacked composite images when photowalking, without carrying a lot of photography gear into the field.

Related Resources

Copyright © 2019 Walter Sanford. All rights reserved.

Tags: , , ,

3 Responses to “Testing: Panasonic “Post Focus””

  1. More testing: Panasonic “Post Focus” | walter sanford's photoblog Says:

    […] Showcasing some of my digital photography and videography. « Testing: Panasonic “Post Focus” […]

  2. “Post Focus” image: Shadow Darner dragonfly | walter sanford's photoblog Says:

    […] Testing: Panasonic “Post Focus” […]

  3. “Post Focus” images: Shadow Darner dragonfly | walter sanford's photoblog Says:

    […] Testing: Panasonic “Post Focus” […]

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: