How Can You Tell If a Lens is Fx Or Dx

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Last Updated on December 26, 2022

There are a few things to consider when trying to determine if a lens is an FX or DX type. The first is the mount type. An FX lens will have a Nikon F-mount, while a DX lens will have a Nikon DX-mount.

The second thing to look at is the size of the sensor. An FX sensor is full frame, while a DX sensor is APS-C. Finally, you can also tell by looking at the focal length markings on the lens.

An FX lens will be marked in mm, while a DX lens will be marked inmmEQ.

There are a few ways to tell if a lens is FX or DX. One way is to look at the mount. FX lenses have a larger diameter mount and will not fit on a DX camera.

Another way is to look at the markings on the lens. FX lenses will be marked with an “FX” while DX lenses will be marked with a “DX”.

What is the Difference between an Fx And a Dx Lens

Digital SLR cameras are typically designed with one of two sensor formats in mind: FX or DX. The difference between these two types of sensors is the size of the image they produce. An FX sensor is a full-frame sensor, meaning it’s the same size as a 35mm film frame.

This type of sensor is typically found in high-end DSLR cameras and produces images with very fine detail. A DX sensor is a smaller, crop-sensor. This type of sensor is typically found in entry-level and mid-range DSLR cameras.

While the images produced by a DX sensor aren’t as detailed as those from an FX sensor, they’re still quite good. The main difference between an FX and DX lens is the amount of coverage each provides. An FX lens covers the entire 35mm frame, while a DX lens only covers the smaller crop-sensor.

That means you’ll need to use a different set of lenses if you want to switch from an FX camera to a DX camera (or vice versa).

Which Type of Lens Should I Use With My Nikon Dslr Camera

There are a few different types of lenses available for Nikon DSLR cameras, and the type of lens you choose will depend on the style of photography you plan to do. For example, if you want to capture wide landscapes or group shots, then you’ll need a wide-angle lens. On the other hand, if you’re interested in close-up photography or portraits, then you’ll need a telephoto lens.

Here is a brief overview of the different types of Nikon DSLR camera lenses: Wide-Angle Lenses: Wide-angle lenses have a field of view that is greater than that of the standard 50mm lens. They are ideal for capturing expansive scenery or large groups of people.

Some popular wide-angle Nikon lenses include the Nikkor 10-24mm f/3.5-4.5G ED VR and the Nikkor 16-35mm f/4G ED VR II. Telephoto Lenses: Telephoto lenses have a narrower field of view than standard lenses, and they are ideal for close-up photography or portraits. Popular telephoto Nikon lenses include the Nikkor 70-200mm f/2.8E FL ED VR and the Nikkor 200-500mm f/5.6E ED VR II .

Standard Lenses: Standard lenses have a field of view similar to that of human vision, making them versatile for many different types of photography. The most popular standard Nikon lens is the Nikkor 50mm f/1 . 8G , which is great for lowlight photography and portraitures alike .

What are the Benefits of Using an Fx Or a Dx Lens

There are a few key benefits to using an FX or a DX lens: 1. Increased versatility: An FX or a DX lens gives you the ability to shoot in a wider range of scenarios and lighting conditions, as they offer more freedom when it comes to adjusting aperture and shutter speed. This can be especially helpful when shooting in low light situations.

2. Greater control over depth of field: With an FX or DX lens, you have greater control over the depth of field in your images. This means that you can choose to have a shallow depth of field (blurring the background) or a deep depth of field (keeping both the foreground and background in focus). This can be helpful for creating different types of compositions and effects in your photos.

3. More accurate autofocus: Because FX and DX lenses are designed specifically for DSLR cameras, they offer more accurate autofocus than other types of lenses. This is especially beneficial if you’re shooting fast-moving subjects, as it increases the likelihood that your images will be sharp and in focus. 4. Better image quality: In general, FX and DX lenses produce better image quality than other types of lenses due to their construction and design.

This includes sharper images with less distortion and aberrations.

FX lens on DX camera compared. "You want the truth!? You can't handle the truth!"


If you’re looking to purchase a new lens, it’s important to know whether the lens is designed for an Fx or Dx camera. Here are some tips on how to tell the difference: -Check the mount type.

An Fx lens will have a larger mount than a Dx lens. -Look at the maximum aperture. An Fx lens will typically have a wider maximum aperture than a Dx lens.

-Consider the focal length. An Fx lens will often have a longer focal length than a Dx lens, which means it will provide more zoom power.

Olivia Bouler

From a young age, camera's fascinated me. My dad gave me my first Canon when I was seven, and since then I've tried to improve my craft. As a young Ornithologist and photographer, I travel a lot and love to bring a camera with me. I love the feeling of capturing a moment that can never be repeated and providing someone with a memento of a time or place.