There are repair kits available for purchase, and they may fix your lens, depending on how bad the crack is. Although, if you do not want to go to that trouble, you can purchase a brand new camera for quite a low cost!
You can find a replacement lens cap for your Nikon L35AF camera at camera stores, online retailers like Amazon or eBay, or directly from Nikon's official website.
You can have your lens fixed at UnitedCamera.com. If they are not able to fix your lens the first time around, it's free. You can also find a replacement lens at UnitedCamera.com.
A Canon branded camera lens for a Canon SLR digital camera can be purchased from retail outlets who sell small electronics and accessories. Retail outlets such as Best Buy sell these items, as well as online retailers such as eBay and Amazon.
I think if the camera has sentimental value to you and is in good working order a replacement lens would be ideal. Amazon or ebay have a wide variety of lenses which I'm sure would suit your Olympus.
If you see a black dot on your camera lens, you should try gently cleaning the lens with a soft cloth or lens cleaning solution. If the dot persists, it may be a scratch or damage to the lens that requires professional repair or replacement.
If you have a broken camera lens, you should avoid using it further to prevent further damage. Contact the manufacturer or a professional camera repair service to assess the damage and determine the best course of action for repair or replacement.
Amazon, eBay, and Best Buy are all great places to find camera lens accessories. The websites for Nikon and Canon also carry a wide selection of camera lens accessories.
A person can buy a replacement Nikon VR lens from several different places. Some of these places include Amazon, Adorama Camera, Gadget Circuit, and Unique Photo.
Replacement parts for camera's would be best looked for at maybe a camera store such as best buy if your camera is a newer model. Smaller mom and pop camera shops if the camera is a little older.
If you notice a black dot on your camera lens, you should try cleaning it with a soft, lint-free cloth. If the dot persists, it may be a scratch or dust inside the lens, and you may need to take it to a professional for repair or replacement.
The lens is convex (curved outward). Light entering the lens from the outside is refracted (bent) as it travels through it. This brings the image to a single (focal) point. The distance between the lens and the back of the camera is such that it allows a small image of the photographed scene to be visible (the picture). The image is inverted because of the refraction of light through the lens.
If it is not a removable lens, trash it and buy a new camera. It will cost more than the price of a decent replacement to fix it. The above refers to actual cracking or scratches on the lens itself. But if you're experiencing problems with the lens barrel extension mechanism (a lens error), then there are some things you can do to correct the problem. Lens errors are fairly common. Usually it's sand or grit interfering with the lens extension mechanism. Or the camera's been dropped with the lens extended. Or the camera has been powered on, but the lens had been blocked preventing its extension. Or the battery ran down with the lens extended ... There are several things that you can do to try to correct it. These home fixes seem to work for less than 50% of the lens errors. If the camera is out of warranty, and if professional repair will cost more than the value of the camera, then they're worth a try. See the below related link "Fixing a Lens Error on a Digital Camera":