The lenses of the cameras have a built-in thread system to be able to place a polarizing filter in the front area. There are different types of filters, the main ones are: UV, colored, infrared, effects, polarized with neutral density.
The latter can be variable and degraded. We are going to see how they behave and what the main filters used by photographers and filmmakers are for.
Let’s check out these filters!
Most photographers buy this filter to protect their lens from possible impact. In some ways it is logical that they do, the lens costs a lot more than the filter and it also does its job fantastically well by absorbing most of the impact and protecting the lens. However, you should know that if you launch the camera from a second floor there will be no filter to protect your lens. In addition to protecting, these filters serve another function, filtering ultraviolet light and slightly correcting excess blue color in photos.
Polarizing filters are widely used by landscape photographers and product photography professionals. These types of filters are built on a polymer chain stretched to the limit, so that the molecules act as a grid that strongly absorbs a polarized component of light and is very transparent to the other component.
In practice, this type of filter manages to avoid unwanted reflections from the sea, some reflections from glass, metals, varnishes, etc. Using them also makes the skies look more intense and saturated. Hence, both landscapers and product photographers always carry one in their bag.
These types of filters only allow infrared light to pass through. This phenomenon produces a very curious type of images. You should try one day. It's super fun.
Effects filters help to modify the shape of the bokeh, they are usually used for creative purposes.
Possibly the most interesting filters are the ND (neutral density). They are used to prevent so much light from reaching the sensor.
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There are variable and fixed ones, the latter subtract an exact amount of light as soon as you place them in front of your lens, for example the ND8 subtract three aperture stops while the ND1000 subtract ten aperture stops.
To give you an idea of the impact this has on our photography, if we want to get a long exposure image like this
We will have to choose a very slow shutter speed. If we do not have a neutral density filter we can close our diaphragm but there will come a time when we can no longer close it, nor can we lower the ISO any more, what we have left is to place an ND in front of our lens to obtain a shutter speed longer.
If our camera asked us for a shutter speed of 1/60 sec. with ISO 100 and f / 16, by placing an ND8 we can shoot at 1/8. However, if we place an ND1000 we will go from 1/60 to 15 seconds of exposure.
As soon as we take the shot with a 15-second exposure duration, we will achieve a sea like the one in the image that precedes this text.
Hence, it is essential to have one of these filters on your next trip to the coast.
Variable ND filters allow you to modify the amount of aperture steps we remove light from the shot. The system is really simple, you just have to turn the filter and you will gradually modify the amount of light that reaches the sensor.
Gradient ND filters are used to subtract the amount of light only in one area of the photo, for example in the sky, without affecting the rest of the image. They are widely used in landscape photography and some wedding photographers also mount it to achieve greater detail in the sky when working in broad daylight.
It is important that the filters are of a high quality since it is of little use to invest so much money in a great lens if we later put a cheap filter of dubious quality in front of it.
Do you already know what your next filter will be? On our website you will find a wide variety of filters and if you want you can go through the store and we will show you in person. Remember to look at the diameter of the lens where you will use it to fit.
If you prefer, there are filter systems that are placed with an adapter outside the lens, this system is usually more professional but also the investment you will have to make will be greater.
Do you know how it can be very useful when taking pictures? We'll tell you everything.
We call a polarizing filter an accessory that resembles a lens, and that only allows the passage of polarized light and in a specific direction. In short, it changes the way your camera captures light and also treats light, removing reflections.
Because it brings the image closer to natural, this means more vivid colors and high contrast. When you see beautiful pictures of the sea, of clear water, you can believe that the camera that captured these images had a polarizing filter. Otherwise, the reflections of the water would not allow such a “clean” photo.
Let’s check out another useful example!
When photographing the sky, fog or even smoke may interfere. With this filter, the sky will also be cleaner. But it's also important to mention that if you need the photo to be bright, you should consider using a polarizing filter.
For example, when we see photos of brand-new cars. Shine is essential to “sell” the car. As with other products. Colors can also change a little with this filter, so be careful in these cases.
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Now your camera doesn't allow the use of accessories? Or do you want to do a test by cell phone yourself? We have a tip to improvise your “polarizing filter”.
Put sunglasses in front of the display!
But, hey, if you prefer something professional, you can buy a cell phone polarizer lens. Yes there is! It comes embedded in a small peg. It's perfect to take on trips or even to leave in your backpack to use in those moments when you're faced with a beautiful scene and can't resist recording it.
It is noteworthy that the use of the polarizing filter only makes sense in brightly lit environments. He's like our own dark glasses. Therefore, it makes no sense to wear sunglasses on cloudy, dark, rainy days.
