Dust Donut - Add Weather Sealing to Any Lens

[ScottyP]

Mmmmm. Donuts; is there anything they can't do?
-Homer J. Simson

 

[tphillips63]

Is there any reason you cannot buy a Canon lens mount gasket and install it on a lens without it? If you wanted better protection at the mount at least you would know it would be the proper material as others have pointed out with something like this you won't know until or unless you get one yourself to try.

 

[RMC33]

Is there any reason you cannot buy a Canon lens mount gasket and install it on a lens without it? If you wanted better protection at the mount at least you would know it would be the proper material as others have pointed out with something like this you won't know until or unless you get one yourself to try.

Gasket is built into the mount. Look at any of the L series lenses you have listed in your sig.

 

[Mt Spokane Photography]

Is there any reason you cannot buy a Canon lens mount gasket and install it on a lens without it? If you wanted better protection at the mount at least you would know it would be the proper material as others have pointed out with something like this you won't know until or unless you get one yourself to try.

The mount is designed with space for the gasket, but, as others have mentioned, the mount is only one aspect of a weatherproof lens.

It might be even worse than that. Many of the consumer grade lenses move a lot of air out the rear of the lens when zooming. Where will it go if the mount is sealed? That is solved in the design of weather sealed lenses, but might just force dust and dirt innto your sensor and viewfinder big time.

 

[RMC33]

Is there any reason you cannot buy a Canon lens mount gasket and install it on a lens without it? If you wanted better protection at the mount at least you would know it would be the proper material as others have pointed out with something like this you won't know until or unless you get one yourself to try.

The mount is designed with space for the gasket, but, as others have mentioned, the mount is only one aspect of a weatherproof lens.

It might be even worse than that. Many of the consumer grade lenses move a lot of air out the rear of the lens when zooming. Where will it go if the mount is sealed? That is solved in the design of weather sealed lenses, but might just force dust and dirt innto your sensor and viewfinder big time.

I could see that also during a bulb or long shutter exposure forcing dust and crud into the sensor.