Basically, there are two ways. One is simple but not easy. The other is both simple and easy. For the first, photographers will move the camera in sync with the moving object which can blur the non-moving background, but keep the moving subject in focus. It’s tricky. This app is not.
Pro. Photo. Style.
Today’s digital cameras make it almost child’s play to capture a moment in time. Autofocus is faster than ever so blurry photos are quickly becoming a thing of the past.
What if you want a little blur in the photo, especially to highlight the frontmost object? What if you want to recreate that action blurring in the background?
All you need is a few dollars and SpeedFocus. This is a new Mac app and worth a look because it does easily what other photo apps do not or do, but have a learning curve.
Open up a photo that you want to modify to add the speed blur effect, or add blur elsewhere, or to change the image’s depth of field.
Brush in a blur. Add a speed effect to the background yet keep the subject in focus. Take a look at this example.
Adjusting the blur is child’s play, too. You can add a speed or wind effect while keeping your intended subject completely in focus (from the original photo).
SpeedFocus comes with a few artistic options, too, including a radial blur and a concentric blur, both of which make great background special effects.
Also included is a vignetting effect which provides a soft focus for edges. Take a look.
Photos can be saved as JPG, PNG, PSD, BMP, and TIFF so additional enhancements can be made in other Mac graphic or photo apps. SpeedFocus is actually fun to use, so trial and error is your friend. Just don’t over do it. Your friends and family will know you have a new photo app.