Key for removing front lens Canon 18-135

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Key for Removing Front Lens on Canon EF-S 18-135mm f/3.5-5.6 IS USM Lens To disassemble the Canon EF-S 18-135mm f/3.5-5.6 IS USM lens, follow these steps: 1. Start by removing the front lens cap and any other external components. 2. Locate the lens barrel retaining ring, which is typically located near the camera mount. 3. Use a coin or similar tool to loosen the retaining ring counterclockwise until it comes loose. 4. Once the retaining ring is removed, you should be able to pull the front lens assembly away from the rest of the lens. 5. Be careful not to touch any internal components, as they may be sensitive to oil and dirt. Removing the Front Lens Assembly: 1. To remove the front lens assembly, simply pull it straight off the lens barrel. 2. You should now see a series of screws holding the lens elements in place. 3. Use a screwdriver to remove these screws counterclockwise until they are completely removed. 4. With the screws removed, you can carefully lift the front lens element out of its mount. Removing the Lens Elements: 1. To access the lens elements, you will need to remove several more screws and carefully pry them out of their mounts. 2. Use a soft cloth or brush to clean any dust or debris from the lens elements before reassembling the lens. 3. Once all the lens elements are removed, you can begin cleaning and inspecting each one individually. Reassembling the Lens: 1. To reassemble the lens, simply reverse the steps above in reverse order. 2. Make sure to tighten any screws securely, but do not overtighten them. 3. Replace the front lens assembly and retaining ring, making sure they are securely fastened. 4. Finally, replace the external components, such as the lens cap. Tips for Removing the Front Lens: * Use a soft cloth or brush to clean any dust or debris from the lens before disassembling it. * Make sure to handle the lens elements with care, as they may be delicate and prone to damage. * If you are not comfortable removing the front lens yourself, consider consulting a professional for assistance.