MTF Canon EF adaptor at DVinfo.net

Brian Lai · March 28th, 2011, 05:33 AM

Mike Tapa at MTF Services just mentioned they should be ready in a couple of weeks. Great news to 5D shooters dying to use their favourite L-series lenses.

Peter Corbett · March 28th, 2011, 06:34 AM

I wonder if I'll be able to use my Zeiss Contax lenses with a C/Y to Canon adaptor on the MTF?

Leonard Levy · March 28th, 2011, 07:54 AM

I think in the past MTF EF adapters have not been able to adjust iris.

need to wait for Birger for that.

Brian Lai · March 28th, 2011, 09:26 AM

Right. The aperture has to be pre-set. Mike suggested using a Canon body and set the desired aperture on the lens, then hold down the preview button and remove the lens. The lens is now set at that aperture.
Not ideal unless you're working on stage where you can light to the same stop for every shot. On exteriors, I imagine a variable polarizer/ND is the only way to adjust exposure, unless one wants to keep changing shutter speeds or reboot the aperture by putting the lens back into a Canon body.

Zeiss lenses with Canon mounts will not have this problem.

March 28th, 2011, 05:33 AM	#1
Brian Lai Regular Crew Join Date: Mar 2011 Location: Hong Kong Posts: 61	MTF Canon EF adaptor Mike Tapa at MTF Services just mentioned they should be ready in a couple of weeks. Great news to 5D shooters dying to use their favourite L-series lenses.

March 28th, 2011, 06:34 AM	#2
Peter Corbett Major Player Join Date: Jan 2006 Location: Victoria Australia Posts: 246	Re: MTF Canon EF adaptor I wonder if I'll be able to use my Zeiss Contax lenses with a C/Y to Canon adaptor on the MTF? __________________ Peter Corbett Powerhouse Productions www.php.com.au

March 28th, 2011, 07:54 AM	#3
Leonard Levy Trustee Join Date: Feb 2006 Location: USA Posts: 1,684	Re: MTF Canon EF adaptor I think in the past MTF EF adapters have not been able to adjust iris. need to wait for Birger for that.

March 28th, 2011, 09:26 AM	#4
Brian Lai Regular Crew Join Date: Mar 2011 Location: Hong Kong Posts: 61	Re: MTF Canon EF adaptor Right. The aperture has to be pre-set. Mike suggested using a Canon body and set the desired aperture on the lens, then hold down the preview button and remove the lens. The lens is now set at that aperture. Not ideal unless you're working on stage where you can light to the same stop for every shot. On exteriors, I imagine a variable polarizer/ND is the only way to adjust exposure, unless one wants to keep changing shutter speeds or reboot the aperture by putting the lens back into a Canon body. Zeiss lenses with Canon mounts will not have this problem.