Frequently Asked Questions - GigaPan EPIC Pro User Manual

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GigaPan Pro User Guide
Basic Exposure Bracketing Settings
1. Select the 'Brackets' setting in the EPIC Pro 'Options' submenu and press OK.
2. Use the down arrow to select three exposure brackets and press the OK button.
3. Now that 'Brackets' is set to a number greater than one, the 'EV Step Size' menu
item will appear below the 'Brackets' menu item. Select 'EV Step Size' and
press OK. Now select the 1.7 EV separation setting and press OK.
4. Choose whether you are going to use the camera AEB (automatic exposure
bracketing ) or the BULB mode where the EPIC Pro controls how long the shutter
is asserted. In order to use the BULB mode, all of the shutter speeds need to
be slower than about 1/10 of a second. If you are photographing during the day
and want to use the BULB mode, then you will need to use a good quality neutral
density filter.

Frequently Asked Questions

1. What changes exposure and why should I only vary the shutter speed?
When you capture multiple exposure brackets for each position for the purpose
of capturing HDR images, you vary the exposure by varying the shutter speed
and keeping the ISO, and aperture constant. Do not vary the aperture because it
will change the depth of field.
2. What does EV (exposure value) mean?
An increase of one full exposure value means that you double the amount of
light. You can do this by doubling the shutter speed from one second to two
seconds. A decrease of one full exposure value means that you decrease the
amount of light by one half. One full exposure value less than one second is one
half second.
Exposure
Value
Shutter
speed
Canon
Nikon
(*see note below regarding quotations)
-2 -1
1/4 s 1/2 s
4 0"5
4 2
0 +1
1 s 2 s
1" 2"
1" 2"
+2
4 s
4"
4"