Using mtf's B4 to EX3 adaptor at DVinfo.net

Ramji Meena · November 30th, 2009, 05:48 AM

Have anyone used mtf's B4 to Ex3 adaptor?I was thinking of buying fujinon's ACM21 which is very costly as compare to mtf's.Many people are not satisfied ,infact disappointed with acm21.I wonder a cheap mtf's product can be useful.If someone has used it please give the feedback

Paul Inglis · November 30th, 2009, 06:23 AM

I've not used MTF B4 to EX Mount but I have used Mike's Nikon to EX and his Nikon G to EX adaptors extensively. Both adaptors are well made to high tolerances and well worth the cost. I would highly recommend MTF adaptors.

Alister Chapman · November 30th, 2009, 07:45 AM

The MTF adapter has no provision for a lens connector, so there is no way to power the zoom or control the iris other than manually. The ACM-21 adds the standard lens connector. There is also a new B4 adapter for the EX3 from Canon which also has a lens connector, but I have no details on that yet.

Ramji Meena · December 9th, 2009, 01:54 AM

Thanx alister
Paul I purchased the adaptimax for nikon lense mount .Yet to see the results.

Bruce Rawlings · December 9th, 2009, 02:38 AM

I think the Fujinon converter also has an optical element that means there is no magnification issue to contend with.

Alister Chapman · December 9th, 2009, 06:29 AM

The Fujinon adapter has a flat glass element that is to compensate for the different amounts of glass in a 1/2" prism compared to a 2/3" prism. It helps prevent additional CA and registration errors. It does not however compensate for the different sensor sizes, so you still need to factor in the 1.3x magnification factor when using a 2/3" lens on an EX3.

Bruce Rawlings · December 9th, 2009, 06:50 AM

Thanks Alister for clarifying that point.

November 30th, 2009, 05:48 AM	#1
Ramji Meena Regular Crew Join Date: Feb 2009 Location: MUMBAI INDIA Posts: 109	Using mtf's B4 to EX3 adaptor Have anyone used mtf's B4 to Ex3 adaptor?I was thinking of buying fujinon's ACM21 which is very costly as compare to mtf's.Many people are not satisfied ,infact disappointed with acm21.I wonder a cheap mtf's product can be useful.If someone has used it please give the feedback

November 30th, 2009, 07:45 AM	#3
Alister Chapman Inner Circle Join Date: Dec 2005 Location: Bracknell, Berkshire, UK Posts: 4,957	The MTF adapter has no provision for a lens connector, so there is no way to power the zoom or control the iris other than manually. The ACM-21 adds the standard lens connector. There is also a new B4 adapter for the EX3 from Canon which also has a lens connector, but I have no details on that yet. __________________ Alister Chapman, Film-Maker/Stormchaser http://www.xdcam-user.com/alisters-blog/ My XDCAM site and blog. http://www.hurricane-rig.com

December 9th, 2009, 06:29 AM	#6
Alister Chapman Inner Circle Join Date: Dec 2005 Location: Bracknell, Berkshire, UK Posts: 4,957	The Fujinon adapter has a flat glass element that is to compensate for the different amounts of glass in a 1/2" prism compared to a 2/3" prism. It helps prevent additional CA and registration errors. It does not however compensate for the different sensor sizes, so you still need to factor in the 1.3x magnification factor when using a 2/3" lens on an EX3. __________________ Alister Chapman, Film-Maker/Stormchaser http://www.xdcam-user.com/alisters-blog/ My XDCAM site and blog. http://www.hurricane-rig.com

November 30th, 2009, 06:23 AM	#2
Paul Inglis Major Player Join Date: Dec 2008 Location: British Isles Posts: 415	I've not used MTF B4 to EX Mount but I have used Mike's Nikon to EX and his Nikon G to EX adaptors extensively. Both adaptors are well made to high tolerances and well worth the cost. I would highly recommend MTF adaptors.

December 9th, 2009, 01:54 AM	#4
Ramji Meena Regular Crew Join Date: Feb 2009 Location: MUMBAI INDIA Posts: 109	Thanx alister Paul I purchased the adaptimax for nikon lense mount .Yet to see the results.

December 9th, 2009, 02:38 AM	#5
Bruce Rawlings Major Player Join Date: Feb 2008 Location: Cardiff, Wales, UK Posts: 410	I think the Fujinon converter also has an optical element that means there is no magnification issue to contend with.

December 9th, 2009, 06:50 AM	#7
Bruce Rawlings Major Player Join Date: Feb 2008 Location: Cardiff, Wales, UK Posts: 410	Thanks Alister for clarifying that point.