Canon EF 28-135mm f/3.5-5.6 IS USM cleaning the lens inside

This video is about cleaning the inside of the Canon EF 28-135mm f/3.5-5.6 IS USM lens. In this video I'm using a Canon 28-135mm lens, but this method works on many other Canon lenses.
As you zoom in and out, the air goes in and out to/from the lens, and due to this the lens collects dust inside. Mostly the dust is between the front lens and the second lens element. Fortunately, the front lens can be removed very easily, don't need to disassemble the whole lens. So in this video I'll show you how to remove the front lens element, remove the dust and clean the lens elements, then assemble the lens.

TIMESTAMPS:
00:00 Intro
00:55 Tools
01:30 Like, sub, donate
01:50 Disassembly
03:28 Clean
06:00 Assembly
09:02 Outro

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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
Permanent marker: http://ebay.us/GFUtke /// https://ali.ski/HOZKG
Suction cup: http://ebay.us/LDxIVl /// https://ali.ski/t7M7Q
Airpump: http://ebay.us/XPC6wo /// https://ali.ski/-Yc1r2
Microfiber cloth: http://ebay.us/YpEifd /// https://ali.ski/6CzC7
Flashlight: http://ebay.us/1ouZGD /// https://ali.ski/lr1QH
Lens cleaning fluid: http://ebay.us/WXS3GC /// https://ali.ski/MYvYl
Small brush: http://ebay.us/R54Rjh /// https://ali.ski/LEV6Sk