Weight rating/limit of the EF mount at DVinfo.net

Iker Riera · December 1st, 2011, 11:10 PM

hi, just wondering if anyone knew what the recommended weight limit without any support would be for the EF mount used in the 7D, 60D, T3i, etc.

I currently use a light clip on matte box with one 4x4 filter but may need to stack 2 in the near future and just wanted to make sure that i stay withing the recommended range and that i won't put much stress on the mount.

Justin Molush · December 1st, 2011, 11:32 PM

The mount can hold enough to the point that it becomes impossible to hand hold from the camera.

If you stick a 400 on it or a PL zoom... your holding the lens anyway. Not like your holding the camera body with any heavy lens in a stable manner. Depends on the camera as well. 7D and 1D series have sturdier mounts, with the 1D being the strongest. If your just mounting a matte box, you should be fine.

Iker Riera · December 2nd, 2011, 12:35 AM

I'm not actually using any big/heavy zoom lenses at the moment, i'm using smaller primes most of the time. It was mostly curiosity about the subject which seems like good information to know in the future.

It peaked my interest because i've seen mentioned in other threads about how the Micro 4/3 mount was considered kinda "weak" and was wondering how the EF mount compared to it.

December 1st, 2011, 11:10 PM	#1
Iker Riera Regular Crew Join Date: Jul 2010 Location: Caracas, Venezuela Posts: 164	Weight rating/limit of the EF mount hi, just wondering if anyone knew what the recommended weight limit without any support would be for the EF mount used in the 7D, 60D, T3i, etc. I currently use a light clip on matte box with one 4x4 filter but may need to stack 2 in the near future and just wanted to make sure that i stay withing the recommended range and that i won't put much stress on the mount.

December 1st, 2011, 11:32 PM	#2
Justin Molush Major Player Join Date: Jul 2010 Location: Montreal Posts: 388	Re: Weight rating/limit of the EF mount The mount can hold enough to the point that it becomes impossible to hand hold from the camera. If you stick a 400 on it or a PL zoom... your holding the lens anyway. Not like your holding the camera body with any heavy lens in a stable manner. Depends on the camera as well. 7D and 1D series have sturdier mounts, with the 1D being the strongest. If your just mounting a matte box, you should be fine.

December 2nd, 2011, 12:35 AM	#3
Iker Riera Regular Crew Join Date: Jul 2010 Location: Caracas, Venezuela Posts: 164	Re: Weight rating/limit of the EF mount I'm not actually using any big/heavy zoom lenses at the moment, i'm using smaller primes most of the time. It was mostly curiosity about the subject which seems like good information to know in the future. It peaked my interest because i've seen mentioned in other threads about how the Micro 4/3 mount was considered kinda "weak" and was wondering how the EF mount compared to it.