schematics of Helios M.C 2.8/28mm

stargazer · 07-20-2013, 02:52 AM

HI all! Currently im trying to clean and refurbish an helios MC 2.8/28mm objectif. The spring mechanism for the diaphragm its not working , someone fiddle with it and made it worst so now i dont have any reference point. Thats why im here asking if someone already cleaned this lenses or now of a site where i can get info in how to do it. Thanks.

stargazer · 07-21-2013, 12:45 AM

Managed to fix the spring mechanism..after disassembling the optics barrel i managed to get to the diaphragm blades , cleaned them one by one and put them back in place (no shaky hands here

) after that they opened and closed effortlessly which was stopping the spring to pull it back to its initial position . Now im trying ti put it all together , but its revealing to be a bit tricky....

Jean Poitiers · 07-21-2013, 12:47 AM

Good luck ... et bon courage ... J

stargazer · 07-21-2013, 12:51 AM

Merci

stargazer · 07-22-2013, 04:04 AM

having a few problems with the objectif..cant determinate the process to put it back together..

07-20-2013, 02:52 AM	#1
stargazer Senior Member Join Date: May 2013 Location: France, Annoisin-chatelans Photos: Albums Posts: 109	schematics of Helios M.C 2.8/28mm HI all! Currently im trying to clean and refurbish an helios MC 2.8/28mm objectif. The spring mechanism for the diaphragm its not working , someone fiddle with it and made it worst so now i dont have any reference point. Thats why im here asking if someone already cleaned this lenses or now of a site where i can get info in how to do it. Thanks.

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07-21-2013, 12:45 AM	#2
stargazer Senior Member Join Date: May 2013 Location: France, Annoisin-chatelans Photos: Albums Posts: 109 Original Poster	Managed to fix the spring mechanism..after disassembling the optics barrel i managed to get to the diaphragm blades , cleaned them one by one and put them back in place (no shaky hands here ) after that they opened and closed effortlessly which was stopping the spring to pull it back to its initial position . Now im trying ti put it all together , but its revealing to be a bit tricky....

07-21-2013, 12:47 AM	#3
Jean Poitiers Pentaxian Join Date: Apr 2011 Location: Lost in translation ... Photos: Gallery \| Albums Posts: 18,076	Good luck ... et bon courage ... J

07-21-2013, 12:51 AM	#4
stargazer Senior Member Join Date: May 2013 Location: France, Annoisin-chatelans Photos: Albums Posts: 109 Original Poster	Merci

07-22-2013, 04:04 AM	#5
stargazer Senior Member Join Date: May 2013 Location: France, Annoisin-chatelans Photos: Albums Posts: 109 Original Poster	having a few problems with the objectif..cant determinate the process to put it back together..