Most entry level digital cameras have 3X optical lens which extend out when the power is on; and retract in the camera body when the power is off. As such, the lens doesn't have screw for mounting add-on lens or optical filter like most SLRs do. The following is a simple and neat method for mounting an add-on lens to a digital camera.
Material
Heat shrinkable tube - black, the diameter should be slightly bigger than the diameter of the add-on lens or the camera's lens, whichever is bigger.
A circular cylinder former with the diameter slightly bigger than that of the camera lens. It can be built using card paper.
1/8" spacer. The diameter is about 1/2 of the cylinder. It can also be built using card paper.
Method
1. Stake the add-on lens on the spacer and then on the cylinder. Make sure that the lens is level.
2. Slide the heat shrinkable tube onto the cylinder.
3. Heat the heat shrinkable tube with a heat gun.
4. After cooling down, remove the cylinder and the spacer.
5. Trim the tube.
Add-on Lens Selection
As the heat shrinkable tube has a limited range to shrink, the diameter of the add-on lens needs to be close to that of the DC's lens. In this project, I salvage the lens elements from an unknown lens. Those from a binoculars or a compact film camera are also good candidates for this project. The following pictures show the lens element I used and the finished assembly.
Slide the lens onto the camera's lens. Here is the look.
Field Tests
Close-up pictures:
Dream Scene
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End of the project
