These Lovely Layers Are More Than Just a Pretty Face
AMONG THE MOST AESTHETICALLY satisfying features of a good lens is the lovely color of the front glass. Check out the ads trying to lure you to new optics, and you’ll see come-hither hues of blue, purple, or yellow—as tempting as a new car’s snazzy finish.
These very thin (five millionths of an inch) coatings are certainly attractive, but are they utilitarian? After all, few lenses made before 1941 had ’em, and those optics worked just fine.
Well, they didn’t work all that “fine.” Don’t sell coatings short. Without them, your lens collection would be small.
Here’s the problem: when light passing through air encounters some other transparent medium, it both bends (refracts) and bounces (reflects). The bending is what a camera lens is all about—it’s how the lens forms an image. Fill a glass with water and stick a spoon in it. Then look at the glass from the side and check out where the spoon enters the water. Refraction! You’ll suspect that Uri Geller has been messing with your flatware.
But look at the glass from above, and you’ll notice that the water also reflects some light, for example the fluorescents on the ceiling.
Denne historien er fra April 2018-utgaven av Shutterbug.
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Denne historien er fra April 2018-utgaven av Shutterbug.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
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“The Pano Rocks!”
THIS ONE SURE DOES, AND FOR MORE REASONS THAN YOU MIGHT EXPECT
Landscapes In Motion
HOW MICHAEL SHAINBLUM CAPTURES HIS TRULY BREATHTAKING IMAGERY
Shooting Stars
PREPARED FOR A METEOR SHOWER, A PHOTOGRAPHER FINDS THE NIGHT HAS A FEW SURPRISES IN STORE.
Shake It Up
EXPLORE CREATIVE TECHNIQUES TO ADD VARIETY TO YOUR PHOTOS.
Life Lessons
HOW INSTAGRAM AND AN IPHONE TURNED A HOBBY INTO A SECOND CAREER
Shutter To Think
EVERYTHING YOU ALWAYS WANTED TO KNOW ABOUT CAMERA SHUTTERS BUT WERE AFRAID TO ASK
Monochrome Master
THE BLACK-AND-WHITE MAGIC OF MAX VADUKUL
True Grit
CAPTURING AMERICAN TRADITIONS IN TIMELESS BLACK-AND-WHITE IMAGES.
Treasure Chest
WHAT’S THE REAL ATTRACTION—THE PHONE’S CAMERA OR THE CREATIVITY OF ITS APPS?
Invisible Man
HOW DAVID INGRAHAM TAKES STREET PHOTOGRAPHY BEYOND TRADITION.