Why are Canon lenses white?

“There is a good reason for this,” Canon writes over on its European website. “Lenses contain glass elements. “But large lenses contain large elements and here expansion can bring a lens close to the limits of its design tolerances. A white surface reflects sunlight, helping to keep the lens cooler.”

What is a full-frame lens Canon?

All Canon full-frame digital SLRs are offered with a kit lens, either a 24-70mm f/4 or 24-105mm f/4. These lenses cover everything from wide-angle photos to portraits, and if you add a 70-200mm lens, you’ll have great coverage across the most commonly used focal lengths.

Why is my camera lens red?

The appearance of red eyes in photos occurs when the camera flash (or some other bright light source) is reflected from the retina. The problem, at least for photographers, is that not all of the light is absorbed; some is reflected back to the camera lens.

WHAT IS STM and USM lens?

USM stands for Ultrasonic Motor, while STM stands for Stepper Motor. Both are autofocus motors built into different lenses you’ll find in Canon’s lineup. While USM lenses are lauded as being “almost silent” on Canon’s website, you can still pick up the focusing sound on the camera’s microphone when shooting video.

What does the L mean on Canon lenses?

Luxury
Some say L stands for “Low Dispersion” – achieved by the UD lens elements found in these lenses. But, the true answer is probably the one in Canon’s Lens Work III Book – “L” is for “Luxury”. Look for the identifying L-lens red stripe around the end of the photographers’ camera lenses.

What is Canon USM lens?

USM. USM (Ultrasonic Motor) is the most widely used AF motor type in the Canon EF lens range to date. This is the currently the fastest focusing motor in the Canon range, yet it allows you to still manually fine-tune focus without having to switch off autofocus completely.

Is EF or EF-S better?

So if you’re a landscape or architectural shooter, or you just want an ultra-wide angle perspective, it’s better to use a full-frame camera with EF lenses. Plus, EF lenses are much more expensive than EF-S lenses. If you’re on a budget, you’ll appreciate the money you can save by purchasing EF lenses instead.