The front lens ring has been lost so i can't attach the lens cap, can you help

SOURCE: I have a Canon Powershot

Thanks for your reply! I called customer support @Canon and they ordered the part for me. The cost was $22 including shipping.
Deborah

ZJ Limited

• 17989 Answers
• Posted on May 12, 2011

SOURCE: I have a canon S5iS

Yes; there are basically two distinctive types of FD lenses. Chrome ring or black ring.

Operation with an FD lens which lacks a chrome Breech-lock mount ring:
Removal from Lens
1. Turn the cap counterclockwise until it stops.
2. Pull the cap out.

Re-attachment 1. Align the arrow on the cap with the red dot at the rear of the lens. 2. In that position, apply slight pressure to the cap and turn it clockwise until it is tight. Note: The rear dust cap for this type of lens has serrated edges. Do not mount a rear dust cap which lacks the serrated edges.

Operation with an FD lens which has a chrome Breech-lock mount ring or with an FL lens:
Removal from Lens 1. Turn the lens' mount ring clockwise until it stops. 2. Pull the cap out. Note: Once the rear cap is removed, the Breech-lock mount ring is locked so that it cannot be turned. (The diaphragm blades are also locked and will not move even if the aperture ring is rotated. )

Re-attachment 1. Make sure the mount ring is locked so that it cannot be turned. 2. Align the arrow on the cap with the red dot on the lens' mount ring. 3. In that position, push lightly down on the cap and turn the mount ring counterclockwise until it is tight.

NOTE: Lens Hood When shooting into bright light, light rays entering the lens may form defects on the image called ghost and flare. Attaching a hood onto the lens helps to prevent this. Bayonetmount hoods are available as optional accessories for most Canon lenses.

Please use only that hood which is specified for the lens concerned. This type of hood fits into the bayonet mount at the front of the lens where it is fixed by turning until it is tight. Some hoods for wide-angle lenses require proper positioning before mounting. Align the red dot on this type of hood with the notch in the bayonet mount at the front of the lens. Then lightly push the hood into the mount and turn it until it is tight. For replacement parts contact here for usa.canon.com-LENS_CAPS or usa.canon.com-LENS_HOOD or try with your local photo-store.

Hope this helps.