Step 3Choosing a DSLR Brand

DSLR Brands

Before buying a DSLR, it is critical to choose a brand for very practical reasons. Each DSLR brand has its own strengths, philosophies and limitations. As system cameras, DSLRs quickly acquire a multitude of dependent accessories which make switching brands more and more costly as time goes by.

There are 5 brands that still produce DSLRs: Nikon (17), Canon (10), Pentax (5), Leica (2), Sigma (1), while Sony and Panasonic have each discontinued their DSLRs in favor of mirrorless cameras.

Canon EOS 6D

Lens Mounts

DSLR brands dictate a camera's lens mount and that determines which lens lineup is compatible. This is by far the most significant difference between brands. Anyone with a sizable investment of lenses is bound to prefer a compatible digital camera. Lens lineup vary greatly by manufacturer and each one has unique lenses. This is a major topic which is covered in its own section below.

Stabilization

There are two ways to offer stabilization for DSLR and each brand only implements one in their DSLR lineup. Nikon and Canon, market leaders by volume, offer optically stabilized lenses, which is the same approach taken by Sigma.

Pentax offers built-in image stabilization in all their DSLR cameras and so does not produce stabilized lenses, since they do not need to. Plus, each time a Pentax DSLR is improves upon built-in image-stabilization, every lens gets better!

Sensor Size

Full-frame DSLRs offer greater image quality, lower image and higher dynamic range than cropped-sensor models of the same generation. All brands finally offer Full-Frame and Cropped-Sensor DSLRs. Canon uses a slightly tighter 1.6X crop for their APS-C models, while the others use the more common 1.5X FLM. While this is a minor difference, it affects the viewing angle of third-party lenses that are designed for 1.5X and become tighter on Canon APS-C cameras.

Sensor size and lens size are somewhat correlated. If compactness is important, cropped-sensor cameras offered by all DSLR brands are beneficial. Plus, for wildlife and other types of photography where telephoto lenses are needed, the FLM works in your favor.

Pentax K-3 II

Advanced Features

There are a number of advanced features which drastically improve certain types of photography. These may not exist or be equally well implemented among all manufacturers.

Partly due to their smaller lens lineups, Pentax, Leica and Sigma have a smaller foothold in the pro market and therefore have developed fewer such features including high-speed autofocus and continuous drives. The only DSLRs to shoot at 10 FPS or more are from Canon and Nikon. Their cameras feature more autofocus points which is very advantageous for tracking moving subjects.

Weather-sealing lets cameras operate in adverse conditions. Pentax extremely tough DSLRs and have the only ones rated to work below freezing Down to -10C or 14F. They have also introduced weather-sealing in their mid-range DSLRs along with matching lenses. With Canon and Nikon, you need to buy rather expensive cameras and quite expensive lenses to get a weather-sealed system.

Pentax uses a magnetically suspended sensor and lets it stabilize the image by shifting and rotating. This alone gives them the unique ability to automatically correct for camera tilt Up to 2 degrees either side. and change perspective right in the camera, like a shift-lens. This improves image quality compared to processing by software.

Canon and Nikon are the big players in the DSLR market. This gives them more attention and support from third-party vendors of photographic equipment and software developers. Rental companies act the same way and many only rent equipment compatible with DSLRs from these two brands.

Ergonomics and design philosophy differ among manufacturers. This is partly due to their target audience and also part of their identities, meaning sometimes something is done differently just to be different, not because its better. These are difficult to generalize and reading reviews of specific models is most helpful for these.

Numerous other feature differences exist, between brands and cameras, but their significance depends on the intended type of photography. Astro-Photography is particularly demanding and the few models that offer an Astro-Tracer function are from Pentax. This feature uses the sensor-shift mechanism to compensate for the rotation of the Earth during long exposures. Professional action cameras from Nikon and Canon provide additional workflow features such as Ethernet connectivity.

DSLR Lens Line-ups

Lenses are key to the versatility and performance of a DSLR. For this reason, considering the lens lineup of a DSLR brand is critical. This is also where brands show more significant differences.

Numbers & Focal-Lengths

When it comes to choice and variety, Canon and Nikon lead by a huge margin. These brands have the largest lineups and the biggest support from third-party vendors. Canon, Nikon and Sigma offer the widest range of focal-lengths of any brands.

LensesCanon
EF / EF-S
Nikon
F
Pentax
K
Leica
S
Sigma
S
Sony
Alpha
Brand 96 102 55 20 84 41
Focal-Range8 - 800mm 8 - 800mm 10 - 560mm 24 - 180mm 8 - 800mm 11 - 500mm
Third-Party *Irix, Samyang, Sigma, Tamron, Tokina, Venus Optics, Zeiss, ZY Optics 340 324 147     150
Focal-Range 8 - 800mm 8 - 800mm 8 - 500mm N / A N / A 8 - 600mm
Weather-Sealed 102 76 33 10 15 16

There are more differences than simply number of lenses and focal-length. Keep in mind that Canon, Nikon and Sigma have several lenses in both stabilized and non-stabilized versions which is not needed by brands which rely one in-body stabilization.

Canon has the most weather-sealed lenses, the most stabilized primes and the most weather-sealed primes. Pentax has most of smaller lenses and they are generally of extremely high-quality. Those lenses save size and weight since the majority of the lineup is designed for APS-C coverage only.

Specialty Lenses

Lenses for special purposes are rare and those aimed at professionals are mostly found on brands with full-frame DSLRs.

Lens data collected January 2021. Excludes exotic brands with limited worldwide availability.

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