A Site for Photographers by Photographers

Community > Forums > Canon EOS > What does the focus limiter...

Featured Equipment Deals

Guide to Nikon TTL Flashes Read More

Guide to Nikon TTL Flashes

Read about Nikon's current offering of flashes and accessories on Photo.net. Shun Cheung compares the SB-900, SB-800, SB-600, and SB-400, and offers detailed specs on the flashes.

Latest Equipment Articles

Lensbaby Spark Review Read More

Lensbaby Spark Review

This inexpensive gadget does indeed spark your creativity. Read on to see how.

Latest Learning Articles

Interview with Environmental Photographer: Peter Essick Read More

Interview with Environmental Photographer: Peter Essick

A conversation with National Geographic photographer, Peter Essick, author of Our Beautiful, Fragile World.


What does the focus limiter swith do?

Jose Carlos , Dec 19, 2003; 09:28 a.m.

Could anyone tell me what the "focus limiter" switch does on the EF 300mm f/4 Lens? I know you can set it from 6 meters to infinity but what is the benefit of this?

Many thanks!

Responses

Mike Smith , Dec 19, 2003; 09:59 a.m.

The lens "hunts less" whilst trying to focus lock, rather than going from minimum to maximum focus and thereby taking longer, it is scanning the range of 6 metres to infinity only.

Therefore the only advantage/effect is the time the lens is taking to find focus. This can be critical for action sports situations, ie the difference between getting a shot and not, but not relevent if you are shooting static subjects.

Ron Chappel , Dec 20, 2003; 07:34 a.m.

a 6 meter limit may sound abit pointless but it's fairly close to a 300mm

Back to top

Notify me of Responses