48 AUSTRALIANPHOTOGRAPHY.COM AUSTRALIAN PHOTOGRAPHY JUNE 2016
PHOTO TIPS seamless panorama stitching
Lighting
Think about where the sun is and how the scene is lit before
you start shooting. Positioning the sun at your back will result
in a uniform and easy-to-manage exposure throughout the
entire scene. Shooting into the sun, when it is very low and
close to the horizon or when it falls behind a cloud, is also
possible. In terms of exposure, it’s important to expose for the
brightest part of the scene. I often use filters to assist
with exposure control – neutral density filters to slow the
shutter speed, and graduated neutral density filters to darken
bright skies.
Straight shooting
You’re almost ready to start shooting. Before you do, the
following tips can save you hours of mucking around in post:
- Shoot from left to right, the images will load in your browser
from left to right, so it will make it easier to keep track of your
series when you’re back home on your computer. - Before you commence the series, take a picture of your
hand with a finger pointing in the direction you are about
to pan to. - You can use your viewfinder’s grid display to help keep your
images level. Line up the horizon with one of the grid lines to
improve your chances of capturing a level horizon.- Pan slowly and accurately, there is no need to hurry to the
next image. Keep an eye on the entire scene and on your
viewfinder to ensure you’re panning accurately to the
next frame. - Shoot more images than you need. I usually aim for around
six frames with about 25% overlap. The more overlap you have
the greater your chance of obtaining a successful stitch. The
greater the overlap however, the more images you will need to
take to obtain the ideal 3:1 ratio. - Stop to take each frame, there is a natural tendency to pan
through the whole scene whilst clicking frames along the way.
By stopping you are ensuring the sharpest images possible and
can concentrate on your composition.
- Pan slowly and accurately, there is no need to hurry to the
Raw processing
Before you start stitching your images, it’s important to refine the
Raw files to optimise tonality, white balance and clarity:
- Once you have downloaded your memory card, place each
series into a separate folder, so you can keep a track of
each attempt. - Highlight all the Raw images in the series and drag them into
Adobe Camera Raw (Photoshop) so all the files open at once –
the thumbnail of each image should appear on the left side of
the screen.