After saving the Left and Right images, they need to be properly aligned using software
The image for this step shows the main window for Stereo Photo Maker
SPM for Windows is popular and free.
It will automatically align the images.
The image shows the most useful SPM buttons indicated with yellow arrows.
SPM is very easy --
First Open the Left and Right Images
Next automatically Align them
Crop both images (this happens simultaneously) to remove borders
Automatically adjust the color and contrast so the images match more closely
Save your image
View your image