Controlling the iris with MTF adapter

Jim Tittle · March 24th, 2011, 12:21 PM

I was using the lock screw as a handle until I decided that it's too fragile for that purpose. I think I'd eventually snap it off, bend it or strip the threads in the hole. The blue ring was too slippery for me, so I bought some rubber bumpers--the kind you put on the back of a picture frame--and stuck them to the ring.

Steve Cahill · March 24th, 2011, 12:26 PM

Another good solution. Thank you for sharing.

Aaron Newsome · March 24th, 2011, 03:39 PM

That looks pretty cool Jim. But how do you remove the PL mount adapter from the F3? Maybe I'll try the manual.

Jim Tittle · March 24th, 2011, 05:25 PM

Funny that you should ask. I had a hell of a time getting mine off--might have something to do with the cold weather here and all that aluminum. I was at my local Sony dealer, and I asked the repair tech for help. We fussed with it for awhile, and finally, it came off. You just have to grab the two black prongs on the breach lock and push counter-clockwise. If you push it the wrong way, it can be very hard to remove later.

Leonard Levy · March 24th, 2011, 09:35 PM

2 peopl;e at my dealer were having a terrible time of it. I looked at it turned the prongs a=nd it came off. There really nisn't anything to it. Justy beleive in the force and trust your self .
Clockwise makes it tighter. Counterclockwise loosens. Plain old fashioned screwing.

Jim Tittle · March 25th, 2011, 04:59 AM

You're in California. I'm in Minnesota. It's winter. Everything is cold and tight here.

Steve Cahill · March 30th, 2011, 08:57 AM

Had my first experience with the MTF adapter at Rule in Boston with the F3. Yes, the first attempt of the removal of the Sony mount is a bear. Finally it came off counterclockwise , and after that first attempt it was easier to remove there after. Removal of the Sony PL mount takes some weight away from the camera.

I ended up removing my modification on the MTF adapter, (see previous post) and will use it without it. I found it a bit too clumsy with another gizmo protruding.

The MTF aperture contol is very sensitive to adjust the lens aperture. With a small amount of rotation the MTF adapter makes big changes quickly, unlike using a manual lens. I did use the MTF's adjustment to control the manual lens aperture as well, it worked well, but sensitive. Once a f stop is chosen than this is a mute issue. I have yet to try a non-manual aperture lens with the MTF.

The MTF adapter is well made and the lens fit quite well with no play. A good tool to expand the F3's lens choices.

Still awaiting on the F3 delivery and then my experience with the adapter will be in the real world.

March 24th, 2011, 12:21 PM	#16
Jim Tittle Regular Crew Join Date: Dec 2010 Location: Saint Paul, MN Posts: 114	Re: Controlling the iris with MTF adapter I was using the lock screw as a handle until I decided that it's too fragile for that purpose. I think I'd eventually snap it off, bend it or strip the threads in the hole. The blue ring was too slippery for me, so I bought some rubber bumpers--the kind you put on the back of a picture frame--and stuck them to the ring. Attached Thumbnails

March 24th, 2011, 12:26 PM	#17
Steve Cahill Major Player Join Date: Dec 2003 Location: Boston, MA Posts: 321	Re: Controlling the iris with MTF adapter Another good solution. Thank you for sharing. __________________ Regards Steve

March 24th, 2011, 03:39 PM	#18
Aaron Newsome Major Player Join Date: Jul 2009 Location: Rancho Santa Margarita Posts: 590	Re: Controlling the iris with MTF adapter That looks pretty cool Jim. But how do you remove the PL mount adapter from the F3? Maybe I'll try the manual.

March 24th, 2011, 05:25 PM	#19
Jim Tittle Regular Crew Join Date: Dec 2010 Location: Saint Paul, MN Posts: 114	Re: Controlling the iris with MTF adapter Funny that you should ask. I had a hell of a time getting mine off--might have something to do with the cold weather here and all that aluminum. I was at my local Sony dealer, and I asked the repair tech for help. We fussed with it for awhile, and finally, it came off. You just have to grab the two black prongs on the breach lock and push counter-clockwise. If you push it the wrong way, it can be very hard to remove later.

March 24th, 2011, 09:35 PM	#20
Leonard Levy Trustee Join Date: Feb 2006 Location: USA Posts: 1,684	Re: Controlling the iris with MTF adapter 2 peopl;e at my dealer were having a terrible time of it. I looked at it turned the prongs a=nd it came off. There really nisn't anything to it. Justy beleive in the force and trust your self . Clockwise makes it tighter. Counterclockwise loosens. Plain old fashioned screwing.

March 25th, 2011, 04:59 AM	#21
Jim Tittle Regular Crew Join Date: Dec 2010 Location: Saint Paul, MN Posts: 114	Re: Expansion Coefficients You're in California. I'm in Minnesota. It's winter. Everything is cold and tight here.

March 30th, 2011, 08:57 AM	#22
Steve Cahill Major Player Join Date: Dec 2003 Location: Boston, MA Posts: 321	Re: Controlling the iris with MTF adapter Had my first experience with the MTF adapter at Rule in Boston with the F3. Yes, the first attempt of the removal of the Sony mount is a bear. Finally it came off counterclockwise , and after that first attempt it was easier to remove there after. Removal of the Sony PL mount takes some weight away from the camera. I ended up removing my modification on the MTF adapter, (see previous post) and will use it without it. I found it a bit too clumsy with another gizmo protruding. The MTF aperture contol is very sensitive to adjust the lens aperture. With a small amount of rotation the MTF adapter makes big changes quickly, unlike using a manual lens. I did use the MTF's adjustment to control the manual lens aperture as well, it worked well, but sensitive. Once a f stop is chosen than this is a mute issue. I have yet to try a non-manual aperture lens with the MTF. The MTF adapter is well made and the lens fit quite well with no play. A good tool to expand the F3's lens choices. Still awaiting on the F3 delivery and then my experience with the adapter will be in the real world. __________________ Regards Steve Last edited by Steve Cahill; March 30th, 2011 at 11:27 AM.