210526 - Super Moon rising over Mallard's Cove, Lake Palestine, TX
ASTRO:
type=Lunar nightscape
IMAGE:
Moon illum=100% (full)
exposure=DSLR OSC HDR:
- foreground: 1x2s, ISO400
- Moon: 1x(1/125)s, ISO1000
EQUIPMENT:
optics=foreground: NIKKOR 70-300mm ED DX, FL=145mm, f/4.8
Moon: NIKKOR 70-300mm ED DX, FL=300mm, f/4.8
camera=Nikon D90 (stk)
filter=(none)
mount=simple tripod
guider=(none)
SOFTWARE:
acquisition=(in-camera)
processing=Photoshop, LrC
click image to enlarge
Sometimes a nightscape photographer might wish to capture a nightscape or deep space object that has a very large difference in brightness between dark and bright areas. Such differences can easily exceed a camera's ability to differentiate and capture them with acceptable detail in a single exposure. A technique employed to allow for such a large difference is called a 'High Dynamic Range' image (or "HDR" for short).
Here, two (2) exposures taken within moments of each other, have been blended together to create the final image. The darker foreground was taken with more sensitive camera settings to capture the dark scene, while the brighter object (the Moon) was taken with much less sensitive settings to control the tendency toward overexposure, and to capture more detail.