Place a plate in the freezer with a small amount of water in it and allow it to freeze. The filter threads are tiny, and the filter ring is relatively thin, so it doesn't take much contraction to release pressure on the threads. This squishing force should elongate the second filter into an elliptical shape, causing its threads to grip into the stuck filter threads. Screw another filter onto the stuck filter, but leave it just shy from tight we don't want to get another lens filter stuck! Now, using squishing force to elongate the second filter, attempt to unscrew it. The key here is to tap the lens filter gently so that you don't cause any further damage, denting, or shock to the lens components.Ī double hand grip and alternating pressure may help loosen a lens filter. The tapping imparts a light shock to the lens filter, often jarring it enough to allow it to turn. While gently applying a twisting force with one hand, gently tap or flick the filter with your fingernail or a semi-hard object. This method works better than you might initially think. Polarizer filters and variable ND filters have an outer ring that rotates on the main filter ring, which can make these filters especially challenging to remove. Tips #1 and #7 work most of the time, but if you have time to spare, tip #5 is the recommended method for really stuck filters, as well as circular polarizer and variable ND filters. If done correctly, you should be able to remove a stuck (not damaged) filter without much force. You also don't want to drop the camera body. Your initial thought might be that the camera body will help hold the lens from turning, but this also allows a damaging force to be applied to the lens. You should also remove the lens from the camera body. When holding your lens, you should grip it as close to the front element as you can to reduce the twisting force on the inner workings of the lens. Using caution is especially noteworthy with zoom lenses that have more complicated inner workings.
The torque you place on the filter and lens can damage your lens. Caution: Before You Beginīefore you try these methods, it's worthy to note a few cautionary things. Gripping a lens filter too hard may cause it to deform and become elliptical, causing the area indicated by the blue arrows to grip the threads too hard. Sometimes, using the least amount of force will allow the filter to turn loose. Gripping the lens filter too hard can cause it to deform into an elliptical shape, which causes the other side to dig into the threads and bind. It May Just Be Your Gripīelieve it or not, sometimes, a filter isn't actually stuck until you try to remove it. Some of the more expensive filters use brass, which doesn't tend to gall and may be something to consider the next time you purchase a lens filter. When a material galls, some of the material is pulled along the contacting surface and builds up, resulting in a wedge-like force between the mating surfaces. Galling is a form of wear caused by two sliding surfaces. When those filters come in contact with an aluminum lens thread, it can gall. Lens filters constructed from aluminum are more likely to have this problem. Tightening the lens filter too much or even a temperature change can cause the lens filter to become stuck. The most common stuck lens filter is one that has been screwed on too tight or has debris in the threads. Before you decide on a removal method, carefully inspect the lens filter to determine if it is damaged or not. The second type is one that has become stuck because of damage, most likely from an impact. The first is one that is either screwed on too tight or has debris in the threads. There are two types of stuck lens filters.
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