Canon EF 17-40mm f/4 L USM lens assembly

This video is about the assembly of the Canon EF 17-40mm f/4 L USM lens. There was dust and fungus inside the lens, so I had to completely disassemble the lens, clean the lens elements, and then assemble the lens. In this video I'll show you how to assemble the lens after I cleaned the inside of it.

UPDATES: n/a

TIMESTAMPS:
- 00:00 Intro
- 00:39 Tools
- 00:52 Like, sub, donate
- 01:21 Assembly
- 29:18 Outro

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- Canon EF 17-40mm f/4L USM - how to clean the lens inside:    • Canon EF 17-40mm f/4L USM - how to cl...  
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- Canon EF 17-40mm f/4 L USM lens disassembly:    • Canon EF 17-40mm f/4 L USM lens disas...  

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TOOLS I USED (ebay / aliexpress link):
- PH000 screwdriver: http://ebay.us/Dz8nTA | https://ali.ski/2e8ZaZ
- Metal tweezers: http://ebay.us/jGp7JO | https://ali.ski/g4VpW
- Adjustable metal tweezers: http://ebay.us/yc3cbb | https://ali.ski/k_elg
- Wood screw: http://ebay.us/zty059 | https://ali.ski/61n7G