Does Lens Speed Matter?

Pros love their fast glass. Maybe they're onto something.
When shopping for a new lens, you might encounter the desired focal length (or focal-length range, in a zoom lens) in more than one speed. For example, one camera manufacturer’s lineup includes 400mm ƒ/2.8, 400mm ƒ/4 and 400mm ƒ/5.6 supertelephotos. The ƒ/2.8 is 4.5 times larger in volume, 4.2 times heavier and costs $5,000 more than the ƒ/5.6. Is it worth it? Many wildlife and action photographers think it is.

Make your best images

Become an Outdoor Photographer Member to access this Photography Gear Article, plus techniques, inspiration and equipment reviews from the pros!

By entering your email, you agree to our privacy policy and to receive emails from Outdoor Photographer.