A Site for Photographers by Photographers

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

Featured Equipment Deals

Wedding Photography Tips: Capturing the Scene Setters Read More

Wedding Photography Tips: Capturing the Scene Setters

When photographing a wedding, don't forget the details: the scene setters. Celebrity wedding photographer, Donna Newman, shares key tips to shooting these key non-portrait wedding shots.

Latest Equipment Articles

The Week in Photography News Read More

The Week in Photography News

March 21-27, 2015: Hear the latest goings-on in the photography world, from product releases to event and campaign announcements and more.

Latest Learning Articles

Basic Photo Tips: Depth of Field Read More

Basic Photo Tips: Depth of Field

Theano Nikitas explains depth of field in detail to help you learn how to judiciously use broad and shallow depths of field to make great images.


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