Nature Photography Blog

John Slonina is a professional nature photographers. His company Slonina Nature Photography leads instructional photo tours and workshops throughout the United States. His photo tours visits several national parks which include Yellowstone, Grand Tetons, Mt Rainier, Olympic, Acadia, Great Smoky Mountains, Mt Rainier, Olympic, Arches, Canyonlands, Everglades, Big Cypress, Katmai and Lake Clark.


Mirrorless vs DSLR


Here are some quick notes on Mirrorless vs DSLR. The choice is not easy.

Mirrorless cameras are now big business right from the entry-level consumer market up to professional use. DSLRs and mirrorless cameras both show the scene through the camera lens itself as you compose the picture, but the way they display it is completely different.

The DSLR design show the view through the camera lens was to use a mirror in the body to reflect and image of the scene up into the viewfinder. Mirrorless cameras take a different approach. They use the ‘live view’ captured by the camera sensor itself to create an electronic viewfinder image so there is no need for a mirror and an optical viewfinder.


Bigger Body is heavier but helpful with long lens.

Better ergonomics (space for more buttons vs and less using touch screens.

Better battery life

Optical viewfinder is best for clarity, natural view and lag free viewfinder.

Currently they have a better lens selection  

Auto Focus better for tracking fast subjects. There is no viewfinder lag (black screen). If you are wildlife or sports photographer this is a big problem.

Better battery life

Cheaper price


Lighter Weight camera body but not necessary lens

Better Video


Which one to buy it is getting to be a tough decision.

The absence of an optical viewfinder, streamlined controls and limited lens range for most systems was a turn-off for a lot of experienced photographers

That's all changing though. I love both. I currently prefer a DSLR but the future is mirrorless.