Why should we go mirrorless?

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Per Inge Oestmoen Senior Member • Posts: 1,794
Why should we go mirrorless?
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Why all this mirrorless hype?

Mirrorless means considerably shorter battery life, less capability in cold environments and the loss of an optical viewfinder.

Moreover, mirrorless means incompatibility with all previous lenses. If we have to use a clunky adapter - and yes, it means clunkiness if we have to insert an adapter in order to use our precious lenses.

In addition, the mirrorless cameras are largely incompatible with manual lenses: AI and AIS lenses can be mounted to the FTZ adapter and the camera will meter the incoming light, but in the absence of an aperture follower ring it will be stop-down metering which means a true regression. The electronic viewfinder will compensate for the major loss of light that occurs from say 2.8 to 5.6 or 8.0, and then the quality and dynamic range of the EVF image will suffer greatly - after not being nearly as clear as an OVF to start with. An electronic viewfinder can be brighter than an optical viewfinder, but it will never be clearer. Those are two different things.

Further, there is no way around the reality that a system built on an electronic viewfinder will always consume much more energy than a system built on an optical viewfinder and where the sensor is "resting" between exposures.

There is no need to buy into the hype that mirrorless is by definition "more advanced" than a DSLR with an optical viewfinder.

We may indeed see it the other way around: If there were no cameras in existence with a clear, energy-saving and sharp optical viewfinder, the optical viewfinder would have to be invented today.

A DSLR has incomparably longer battery life given the same capacity in mAh, it tolerates cold much better than any mirrorless camera, and it has an optical viewfinder.

If we are talking Nikon, a Nikon DSLR is compatible with all Nikkor AI/AIS as well as all autofocus lenses - no need for an adapter. Of course, new and compatible lenses for the new system would remedy the lastly mentioned problems, but again: Why this mirrorless hype, when an optical viewfinder

If one is after a high quality camera body which will serve its user for many years to come, why not choose for example a D750, D850 or D5 instead of a mirrorless?

Per Inge Oestmoen, Norway

Nikon D5 Nikon D750 Nikon D850
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