What You'll Get
Photographs let you document every stage of your child's growth, from screaming infant to screaming teenager. Watch them develop with this Groupon.
Choose Between Two Options
- $59 for a portrait photography package ($175 value)
- $75 for a newborn photography package ($225 value)
Fisheye Lenses: From Under the Sea to Up in the Cosmos
Among photography's most well-known tools is the fisheye lens. Check out Groupon's explanation to understand how this device bends the world to its will.
To capture the entirety of the cosmos at night, it’s helpful to look at the world like a fish. That is, as if underwater. Fish, scuba divers, and other aquatic creatures will notice a curious phenomenon when they look up at the surface. Because of how light refracts on the surface of water, an entire 180-degree panorama of the world above is compressed into a bright, circular image.
This view will look familiar to anyone who’s ever seen a fisheye photograph of an entire cityscape bending into view from ground level or the comically enlarged snout of a curious dog sniffing a camera that was dropped in bacon grease. And in fact, the former inspired the latter. In 1906, inventor and physicist Robert W. Wood created a pinhole camera filled with water to capture similarly compressed-but-comprehensive panoramas, and coined the term fisheye shot to describe it.
Today’s fisheye lenses don’t need water. Instead, they use an extremely wide-angle lens with an ultra-short focal length that captures a wide slice of the visual field and dramatically bends light rays into one of two kinds of images. Circle lenses produce perfectly round images on a black background, whereas full-frame lenses yield partially rounded pictures with a bulging central focus around which all other elements curve. Beyond its use in creative photography, astronomers picked up on the fish-eye lens soon after its invention in order to capture an entire hemisphere of sky at once, and planetariums often turn the technology inside out, using fisheye projection lenses to fill a domed ceiling with sky.
The Fine Print
Promotional value expires 180 days after purchase. Amount paid never expires. Appointment required, 24 hour advance notice required. Limit 1 per person, may buy 1 additional as gift. Limit 1 per visit. Valid only for option purchased. If beyond 20 miles of 93730 additional travel fee will apply. For newborn shoot, child must be under 14 days of age. Portrait shoot valid only for up to 2 people. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.