Stiff focus ring In Leica Summilux 1:1.4/50 Leitz Wetzlar Germany

Stiff focus ring In Leica Summilux 1:1.4/50, It's not that hard to fix the stiff focus ring in this lens. Just take good care and REMEMBER to set small marks, BEFORE fully unscrew the helicoid! I use LM47 with MoS2 grease from "LIQUI MOLY" to re-grease the focus assembly. Here are some link's to different repair tool's and lubricating stuff: Clamp tools: https://www.ebay.co.uk/itm/3640379611... Flex-I-File: Ultra Fine Needle Piont Scriber #6114 www.flex-i-file.com www.alphaabrasives.com Dental instruments are: Hollenback Carver “plastic instrument” (a.k.a. stellite) Wall’s carver. "ORBIT" HEPA Blower: https://photosol.com/products/orbit-h... You can buy it here: https://www.adorama.com/cpkhjdb.html "Liqui-Moly" LM 50 Litho HT: https://www.amazon.co.uk/Liqui-Moly-L... "Liqui-Moly" LM47 MoS2 grease with Molybdenum disulfide: https://products.liqui-moly.com/lm-47... or on Amazon: https://www.amazon.co.uk/Liqui-Moly-3... Contact glue: https://www.loctiteproducts.com/en/pr... Japan Hobby Tool rubber cone: https://www.amazon.com/Japan-Vacuum-C... 18 different size rubber repair tool's: https://www.amazon.com/Sizes-Lens-Fil... You can also buy this set. Lens Repair Set with pointed, flat, half flat tips: https://www.amazon.com/dp/B00QRPWCN0/... JIS cross head screw driver's: https://www.amazon.com/Moody-Tools-58... Or this set, that is the set I use: https://eustore.ifixit.com/en/Tools/D... Lens cleaning wipes (PEC-PAD): https://www.amazon.com/dp/B0161VIZZ8/... Thin Cotton Buds x 200 you can buy them here: https://www.muji.eu/pages/online.asp?... DSLRKIT Pro Lens Vise Tool Repair Filter Ring Ajustment Steel 27mm to 130mm: https://www.amazon.com/DSLRKIT-Repair... Japan Hobby Tool Helical Grease Made in Japan: https://www.amazon.com/Japan-Hobby-He... Loctite 222 50ml Threadlocker https://www.amazon.com/Henkel-Loctite...