What is a Mirrorless Camera?

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Understanding the definition of a mirror less camera

For those who are new to the digital camera world or have some experience, Nikon and Sony are one of the best mirrorless cameras on the market, as we know today. In a few words, the hold idea behind DSRL has improved or innovated. A mirrorless camera is one that does not require a reflex mirror, an essential element of DSLR cameras. The mirror in a DSLR reflects the light up to the optical viewfinder. In a mirrorless camera, there is no optical viewfinder. Alternatively, the imaging sensor is exposed to the light at all times. This new technology gives the camera end user a digital preview of the image either on the rear LCD screen or an electronic viewfinder (EVF). Because of this fantastic design, Mirrorless cameras are pretty much called “mirrorless.” Also, the DSLR cameras are being called “mirrored.”


Mirrorless

Credit:Canon

Mirrorless Camera Dimension Comparisons

Dimesions

Size wise (measured from grip to rear LCD screen), the two compact cameras look similar, although at 5.0″(W) x 3.78″(H) x 2.47″(D), the Sony a7R III is slightly smaller in both width, height and depth, than the Nikon Z7 which measures 5.28″(W) x 3.98″(H) x 2.66″(D) in size. 9.22 in3 (20%) Larger

In overall cubic size, the Nikon is 9.22in3 (20%) larger at 55.9 cubic inches, compared to the Sony a7R III which is 46.68 cubic inches.

In mm, the sizes are as follows:

    Nikon Z7 : 134mm x 101mm x 67.5mm
    Sony a7RIII : 127mm x 96mm x 62.7mm

Although the Nikon Z7 is physically larger, it is in fact is 72g (11%) lighter than the Sony a7R III.

The Nikon Z7 does a have a much wider grip which is very welcoming to someone like myself, with bigger hands.


Nikon Vs. Sony Mirrorless Camera

On the third quarter or August 2018, Nikon stepped up to the plate as the second camera manufacturer to release not one, but two full-frame mirrorless cameras.

The Nikon Z6 initial cost was $1,796.95, and it is their direct competitor to the Sony a7 III. Recently, Nikon introduced the Nikon Z7 for a new cost much higher of $2,996.95. There are many avenues to purchase this camera, including Amazon, BhPhotoVideo, Adorama, and many more that are set to go head to head with the Sony a7R III camera.

Sony is known for its competitive R&D strategy, which has worked out amazingly for them so far. It has also been the basis why we are seeing cameras with these kinds of specs today. If Sony did not exist, Canon and Nikon would still be performing it protected and would most likely have never seen the Nikon Z7 or Z6 cameras.

As Nikon and canon have been too humble to play, Sony has had the full-frame mirrorless range all to themselves which has unquestionably given them the upper hand in this field, even going after Nikon’s DSLR big boys like the Nikon D850 and D5 in the process.

Nikon, on the other hand, has been in the camera industry for a century already, so they have far more experience than Sony as well as large assortments of original and third-party lenses to back it up.

Mirrorless

Full Exposure


Lenses

These new mirrorless cameras have many advantages and some new challenges for the camera end user. The camera lenses mount has changed. Meaning, you have to purchase a special adapter from the camera manufacturer or a third-party manufacturer. The old lenses will continue to work, after installing the adapter, without no issues or loss of picture quality. However, this is an additional item that you will have to take into account at the time of purchase.

The mirrorless camera, however, has a new large selection of lenses and the number keeps growing. Again, this does not mean that you have to discard or eliminate all the lenses that you already own. One of the neat things about mirrorless interchangeable-lens cameras is that the flange back distance (the distance between the lens mount and sensor) is much smaller than on a DSLR. This makes it possible to attach a wide variety of lenses from DSLR manufacturers using various adapters.However, if you are thinking about migrating completely to mirrorless family, you may have to start spending in new lenses.

Keep in mind, though, that just because the camera is designed to be smaller does not mean its mirrorless lenses will be. A 300mm lens on a full-frame DSLR camera will be the same size on a full-frame mirrorless camera. This is an appearance that needs to be factored as there is no way to get around the physics. Smaller sensor formats, however, can get away with smaller lenses. Other companies such as Micro Four Thirds, it has a crop factor of 2x compared to full-frame so that a 150mm lens will yield a 300mm full-frame equivalent field of view — but with not nearly as much bulk. Larger sensors do produce better image quality, so as always, there’s a trade-off.

Sonyvsnikon

Credit:Fullexposure


Processor & Sensors - Image

Nikon Z7 is equipped with the large Z mount in a compact body, 45.7 megapixels, an FX-format CMOS image sensor, and the EXPEED 6 image-processing engine, experience image quality like never before. Shoot under any lighting conditions with an ISO range of 64 to 25600, and never miss a crucial moment with the 493-point focal-plane phase-detection AF. Capture cinematic videos in 4K UHD/30p and Full HD/120p.


The Sony a7R III uses the BIONZ-X image processor made by Sony which is the same processor used in their entire Mark III range mentioned above.

The Sony BIONZ-X is an amazing performance processor that has gotten Sony’s camera to be a the quality level of performance that we all know them for.

The Nikon EXPEED processors are however no slouch themselves and have proved this many times with their DSLR cameras, especially the Nikon D500 and Nikon D850 camera.

Despite the much smaller form factor compared to DSLR cameras, mirrorless cameras can have the same size sensors inside. Just as Canon and Nikon offer full-frame and crop sensors in their DSLR cameras, Sony makes both full-frame and crop sensor mirrorless cameras.

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Autofocus

The autofocus techniques of mirrorless cameras range considerably depending on the manufacturer and the lenses being used with the camera. For this reason, it is tough to state whether or not mirrorless cameras have the edge over DSLRs in this area. In the initial days, they did not, as they relied on much more moderate contrast-detection AF systems, but they have advanced considerably since then. As much as modern mirrorless AF is, we have nevertheless decided that DSLRs serve to offer more harmonious performance, especially in low light or when following moving points.


Product Comparison

Compare

Reference:

FullExposure (2019) Nikon Z7 Vs. Sony A7R III Review. Source:https://www.fullexposure.photography
Nikon (2019) Nikon Z 7 Product Tour Video. Source: Nikon.com


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