Miranda 28mm with Ricoh pin

on9ye · 09-23-2013, 02:52 AM

Dear all,

I had this lens, Miranda 28mm f2.8. It has A setting for aperture and it work just fine with my Super Program. It also can mount to my K-01 but its need force when unmount. I disassemble it and found out it has Ricoh pin unlike any I saw online. Picture as below, it has some kind if circuit connecting with the aperture pin. Anyone had any experience with this type of pin? Will my lens work just fine if i remove it?

Thanks in advance

Edit: the pin is actually on the right side of the picture, not in the red circle

Attached Images

Last edited by on9ye; 09-27-2013 at 03:55 PM. Reason: more information

Joel B · 09-23-2013, 06:46 AM

My Sears kr has pretty much same set up. I was told removing the connection will disable the auto aperture. So instead I just used a multi tool (Dremmel) and ground that sucker flat. Works fantastic!!

The best part is no risk of reduced functionality!
Joel

on9ye · 09-27-2013, 03:54 PM

Originally posted by Joel B

My Sears kr has pretty much same set up. I was told removing the connection will disable the auto aperture. So instead I just used a multi tool (Dremmel) and ground that sucker flat. Works fantastic!!

The best part is no risk of reduced functionality!
Joel

Well, I don't have the grinding tool so I tried to remove the pin, assemble it back and mount it to my K-01. Guess what, its working just fine. Auto aperture setting work and easy to unmount. If anyone have this kind of pin, I think it is safe to remove it permanently.

Thanks

Joel B · 09-27-2013, 04:35 PM

Sounds like a winner to me! Now that you have conquered the dreaded Ricoh pin, there is a whole new world lenses open to you!!!!!!

Sagitta · 09-27-2013, 06:08 PM

All three of my Ricoh-pin laden Sears lenses' apertures function perfectly well after removing the pin entirely. I don't remember if they had a circuit going to them or not however.

09-23-2013, 02:52 AM	#1
on9ye Junior Member Join Date: Dec 2012 Posts: 40	Miranda 28mm with Ricoh pin Dear all, I had this lens, Miranda 28mm f2.8. It has A setting for aperture and it work just fine with my Super Program. It also can mount to my K-01 but its need force when unmount. I disassemble it and found out it has Ricoh pin unlike any I saw online. Picture as below, it has some kind if circuit connecting with the aperture pin. Anyone had any experience with this type of pin? Will my lens work just fine if i remove it? Thanks in advance Edit: the pin is actually on the right side of the picture, not in the red circle Attached Images Last edited by on9ye; 09-27-2013 at 03:55 PM. Reason: more information

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09-23-2013, 06:46 AM	#2
Joel B Veteran Member Join Date: Aug 2013 Location: Barnett MO. Photos: Albums Posts: 2,336	My Sears kr has pretty much same set up. I was told removing the connection will disable the auto aperture. So instead I just used a multi tool (Dremmel) and ground that sucker flat. Works fantastic!! The best part is no risk of reduced functionality! Joel

09-27-2013, 03:54 PM	#3
on9ye Junior Member Join Date: Dec 2012 Posts: 40 Original Poster	Originally posted by Joel B My Sears kr has pretty much same set up. I was told removing the connection will disable the auto aperture. So instead I just used a multi tool (Dremmel) and ground that sucker flat. Works fantastic!! The best part is no risk of reduced functionality! Joel Well, I don't have the grinding tool so I tried to remove the pin, assemble it back and mount it to my K-01. Guess what, its working just fine. Auto aperture setting work and easy to unmount. If anyone have this kind of pin, I think it is safe to remove it permanently. Thanks

09-27-2013, 04:35 PM	#4
Joel B Veteran Member Join Date: Aug 2013 Location: Barnett MO. Photos: Albums Posts: 2,336	Sounds like a winner to me! Now that you have conquered the dreaded Ricoh pin, there is a whole new world lenses open to you!!!!!!

09-27-2013, 06:08 PM	#5
Sagitta Veteran Member Join Date: Feb 2011 Location: Maine Photos: Gallery Posts: 3,081	All three of my Ricoh-pin laden Sears lenses' apertures function perfectly well after removing the pin entirely. I don't remember if they had a circuit going to them or not however.