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