Parametric anamorphic lens insert

My design aims to be easy to tweak and deliver the best results specifically for any of the lenses you already have as long as you are willing to put in some effort. First off you have to measure your lens, and doing so with a pair of calipers is the best approach but be careful not to scratch the glass

All you have to do is open the file in Fusion360,  modify→ parameters, and insert the values you get after measuring your lens

1. The diameter of the frontal/rear element of the lens that you are trying to mod. This will determine the height of your oval cutout. If you make this too tall you will end up with corners that are not going to look appealing. But at the same time, this is still an aperture, and the smaller you make it the less light you will get in your lens. By doing so you will also be messing with the depth of field the same way you would by closing down an aperture so the goal is to make it as close as possible to the size of the glass element.
2. Shell diameter. We aim to make the inserts sit flush with the glass element so making them pressure fit against the body of the lens will most probably be the only mounting solution available. Sizing this will require some creativity and will be different for every lens. This parameter will also give you the structural integrity of the anamorphic insert so making it at least 1.5 mm bigger than the previous value is almost mandatory
3. The width of the oval cutout is what is going to determine your final look. A good starting point is the value you got at point 1 divided by 2. This will result give you boke that is oval but not very distracting. Here the focal length will play a crucial role. If you are trying to mod a 35mm or wider lens you probably can't go for something narrower but on a 50mm or longer lens you can experiment with narrow apertures and they will produce amazing results.

FULL ARTICLE ABOUT THIS HERE: https://vmoldo.com/anamorfic-inserts