jerryc41 Loc: Catskill Mts of NY

Whatever you get, be sure you're not giving up image quality or features in exchange for a slightly small package.

Read comparisons and specs, and decide what features are important to you.
(Reviews) https://www.youtube.com/user/TheCameraStoreTV/videos
http://www.cameradecision.com/
http://cameras.reviewed.com/
http://camerasize.com/
http://www.imaging-resource.com/IMCOMP/COMPS01.HTM
http://snapsort.com/compare
http://www.dpreview.com/products/compare/cameras?utm_campaign=internal-link&utm_source=mainmenu&utm_medium=text&ref=mainmenu

Jerry G Loc: Waterford, Michigan and Florida

Before you make a decision go to a store where you can hold them, the D4 is a very large camera, you don't want to end up with a camera so small you find it difficult to use.

rayr

I switched to M-43 about a year ago and I have to admit that I have a lot more fun again with my landscape and wildlife photography. I read every review I could find and I settled on the Olympus OMD EM-1 Mark ll. This is an amazing camera and I just recently bought the Zuiko 12-100 F4 Pro lens to go with the Panasonic 100-400. Going out for a day of shooting with this camera is a joy over carrying my Nikon D750 and Tamron 150-600 G2 lens. Rent one and see for yourself.

JPL

I started with a Konica in the 80's. Then switched to Nikon and have been shooting Nikon film cameras and D80, D200, D3200, D600 until I decided to try Sony A7r about 3 years ago. For me it is by far the best fit camera for my needs. Would get either the Sony A7iii or A7riii if I was switching today.

HallowedHill Loc: Chattanooga, TN

I made the switch a year ago and like you I had shot Nikon for years and years and.... I chose to go with Olympus OM D-E M1 Mark II and an Oly Pro 12-100 and Pany 100-400 lens. I shoot travel, wild life and family for the most part, with not so much video. I print no larger than @ 16x20 and for my purposes this gives me what I need in image quality and versatility at a reduction in size and weight. I'll add soon a faster option for wide angle and I'll be set. I like the color and the image quality for the sizes I print is comparable to the Nikon. And most importantly, at 69 with arthritis in my hands the reduction in weight and size is great for me.

As some above said, look at what you shoot, try a few cameras out, and go from there.

camerapapi Loc: Miami, Fl.

Mirrorless is lighter, smaller and capable of great images with good glass and good technique. It is my understanding that in the case of Olympus the OM-1 Mk II is very good for sports, action and wildlife photography. Previous bodies are not very good in that particular respect but excellent for still photography and some action if showing care.
I cannot tell about Fuji or Sonny since I have no experience with them.

billnikon Loc: Pennsylvania/Ohio/Florida/Maui/Oregon/Vermont

I was just next to a guy trying out the Sony a9, 20 frames a second and you can put it in silent mode and not hear a thing. He was using the Sony 100-400 and he was getting some amazing shots of birds in flight, he was experimenting with different focusing modes, he was moving from a full frame Canon with a new the newer 200-400 and the 600 f4 Canon lenses. He felt the results were favorable.
I was shooting beside him with my Nikon D500 with the 200-500 Nikon lens and I felt their was no difference in the shots. But I am no expert, but, his outfit weighted less than mine by quite a bit. And, Sony is releasing a new 400 mm 2.8 for their e mount. But rumor is that it will cost an arm and a leg.
And, it seems to me that Sony introduces new camera's faster than any company out their. I feel like if I buy a body it will be 2 generations old within a year. Don't get me wrong, I believe Sony is moving very fast in the mirrorless market but my Nikon is still delivering great results and with the amount of Nikon lenses that I have in my stable I will continue to stay with Nikon for now. Sony has not wowed me enough to switch, FOR NOW.

mizzee Loc: Boston,Ma

Check out the Olympus OMD e Mark 1 II. Olympus' 5 axis in camera stabilization is a leader and gives you maximum flexibility with lenses. I have the Mark 5 II and adore it. I traded in all my Nikon lenses, camera etc. because I had to lighten the load. Whatever you choose, I can almost guarantee you'll be recharged!

bobmcculloch Loc: NYC, NY

This gets my vote, just how much are you gaining going mirrorless? how much will it cost? If your going to keep your lenses how much weight difference is there in the body?

lamontcranston

If you are looking for simplicity and are on a budget and want to get your feet wet with an excellent quality mirrorless camera that produces excellent results, take a look at the Sony A6000. It can be had with an excellent 18-55 kit lens at a bargain price from B&H or Adorama. I have 2 of them and my Nikon now sits on the shelf and rarely gets used.

ltj123 Loc: NW Wisconsin

Both Canon and Nikon are getting serious about mirrorless, but for now not a real option. For me I'll stick with the Canon DSLR and all the glass I have, down the line if Canon gets really serious may jump but right now I don't see a weight difference or up front cost a virtue that's worth change.

AntonioReyna Loc: Los Angeles, California

The Sony full frame bodies are small but their lenses are not, so in the end the difference is not as great as it is when you just compare the size of the bodies. I shoot Canon full frame but I also have a mirrorless, Sony and Panasonic, but to use only for street photography, short lenses.

CatMarley Loc: North Carolina

I also had Nikons since the first FM came out. I still have two Nikon DSLR's, one of them full frame and one 5500. The camera I USE is my Fuji. After using the Fuji, I simply cannot tolerate the frustration of using the Nikons. I do not need a full frame. The fuji prints are indistinguishable from the FF Nikon's. If anything they are better, perhaps that is the lens talking.

If nothing else, go somewhere where you can get your hands on a Fuji XT-2. Rent one for a day and take some photos. You won't regret it.

Jim Bob

What lens do you recommend for that Fuji?

gwilliams6

I recommend the new Sony A7III. I have already ordered one. It is a game-changer for its price/performance. Already the best selling camera (mirrorless or DSLR) at B&H Photo, Adorama, and Amazon.
https://www.sony.com/electronics/interchangeable-lens-cameras/ilce-7m3-body-kit

You can still find excellent compact full-frame Sony lenses like the 28mm f2, 50mm f1.8, 85mm f1.8, and several 35mm lenses that are not heavy at all. An excellent all-around lens is the Sony 24-105mm f4 . It is not heavy and balances just fine on the full-frame Sony A7-series cameras. I have one.

Yes the longer zooms like 70-200mm and 100-400mm are heavier, but every camera makers' full-frame 70-200mm and 100-400mm are heavy to have that many glass elements and image stabilization. Cheers