* The gears are designed for lenses diameter from 42mm to 92mm (92mm gear can be attached up to 95mm diameter) * Separate gear made for each diameter of 1 mm increments! * The gears are made of rigid polyurethane, that stretches a little bit, when you put the gear on. * The correct form of the teeth module 0.8. * The width of the gears is 8mm (you can combine several gears to achieve the width that you need).
Attention! The price for one gear! Attention! You must specify the DIAMETER of your lens in mm!
HOW TO CHOOSE A CORRECT SIZE?
You should do your own measurements to get the correct result. The best way is to use calipers. If you haven't got one, you can buy the cheapest plastic calipers for less than 1 USD. It will ease measurement process very much. More expensive tools have electronic scale for the sake of convenience. For choosing correct gears you should order 0.2-1mm smaller size. For example for lens with 80mm diameter you should choose 79mm gear, for 63.3mm diameter - 63mm gear, for 52.5mm diameter - 52mm gear etc.
Attention! Putting the gear on needs some effort. Be careful especially with plastic autofocus lenses! Put the gear on gradually, carefully moving it upon the lens. If for some reason this is not possible, you may be using the wrong size. Contact us and we will solve this problem!
Attention!!! If you have ANY questions after purchase, please first contact us! If we send a wrong size, we will send a FREE replacement.
