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Full Frame Vs. Crop Sensor Cameras — Pros And Cons Of The Image Sensor Formats

In the realm of photography, photographers keep debating about the superiority of full frame and crop sensor cameras. While some DSLR users would state “Bigger the better” and recommend going for full frame sensor camera, others would prefer the crop sensor camera for its penetration in the market, availability, low price, lightweight and small size. However, both these types of cameras have their own pros and cons. But the very basic difference lies in the difference of their sensor sizes. While the full frame sensors are equivalent to the size of a 35 mm (36 x 24 mm) film frame, the crop sensor, also widely known as APS (Advanced Photo-system Type) sensors approximately equal the size of the classic, age old negatives, i.e 25.1 x 16.7mm. Let’s take a look  at the advantages and disadvantages of these two types of cameras.

All digital photographers who are looking to upgrade or are entering the photography world have questions about which one to choose.

Pros Of Full Frame Sensor Cameras

Full frame sensor cameras are the ones with a bigger physical sensor size, less pixel density and hence bigger pixel size. These cameras are known for shooting better quality images, high ISO performance and a wide angle of view. Since the pixel size is big, more photons (light) can be captured, thereby rendering less noisy pictures even in low-lit ambiance. In addition, these cameras can view a wider dynamic range of light. As such, colors come out smoother because tonal details can be captured. Such cameras also provide a wider angle of view than the crop sensor cameras. For example, when using a 24 mm lens for both full frame and crop sensor cameras, a full frame sensor camera provides 84o angle of view while the the crop sensor camera may provide a mere 62o angle of view. Therefore, a full frame sensor camera is particularly useful for landscape (given good resolution) and architecture photography but suited for all other types of photography as well.

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Camac Dusk 2 By AndyCoulson

Pros Of Crop Sensor Cameras

Crop sensor cameras have a comparatively smaller sensor size with a higher pixel density and are known for their long focal length. The depth of field is also quite high. Thus, more details can be obtained even when shooting far off objects. One interesting feature of a crop sensor camera is that its magnification gets multiplied by (approx.) 1.5 times (check camera manual) the original focal length of the lens. Thus, a 300mm lens will act as a 450 mm lens while using a crop sensor camera. The available lens variety  for such cameras is immense and the lenses are quite cheap and lightweight, making crop sensor cameras ideal for hobbyists and amateur photographers (as they are affordable and easy to carry around). In addition, it becomes easier to adjust and set focus on the subject using a crop-sensor camera because of its narrow focus spread (field of view). Crop sensor cameras are often equipped with AF assist lamps. These lamps (located near the lens barrel) illuminate the subject in low light,which is particularly useful if auto-flash fails. Some AF lamps also throw infra-red lights to avoid startling the subject. Crop sensor cameras are useful for shooting small objects, wildlife and sports photography. These cameras fill the frame with the subject because of the magnification factor (an effect of the crop factor).

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Vignette Pansies Vignette By wiredknitter

Cons Of Full Frame Sensor Cameras

Full frame sensor cameras are bulky and quite expensive (20 times more than crop sensor cameras). Only good quality, high end lenses are to be used in such cameras. If not, optical flaws like light fall-off might occur at the edges of the photograph. Macro and telephoto lenses also are not suitable to be used with this camera as they might force -crop the image.

Cons Of Crop Sensor Cameras

Crop sensor cameras have the biggest disadvantage of cropping the actual size of an image. This happens because they capture the central part of an image and leave out the periphery. Also, the angle of view is narrow. Since the field view is narrowed,  control on the background is decreased. Crop sensor cameras have closely packed pixels in their sensors. As such, light absorption is low and exposure decreases. Thus, for capturing an image in dim light, flash or AF lamps are needed. Also, ultra-wide angle lenses are difficult to find for such sensors.

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Bokeh Butterfly By aussiegall

Now that you know the difference between full frame sensor cameras and crop sensor cameras, you can decide what would suit you the best. Summing up, while full frame sensor cameras give a wide angle of view, crop sensor cameras provide a more narrowed and distant reach. The key is Full-frame are going to be the future, they have excellent ISO, noise performance at the cost of magnification and pixel density. If you are upgrading, are willing to invest in new lenses and if your budget allows, by all means opt in for a full-frame. Else opt in for a regular crop-sensor DSLR — they are going to stay and aren’t going anywhere is the foreseeable future.

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7 comments… add one
  • Mike Gee Feb 2, 2019 @ 19:30

    Nicely written and helpful. I have a Sony A-6300 crop sensor which is excellent. Im deciding next the full frame but why bother changing. Either have a great use depending on the photography shots you wish for. If I were shooting weddings or interior shots no doubt full frame. Honestly I have awesome shots indoors with the camera I have. It depends on your lenses. It gets crazy after awhile having so many lenses to interchange, macro, wide angle, zooms, portrait, etc,,,

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