Possible substitute for a laptop is an I-Pad, 1LB, gives you something to download your photos to and see them, make sure you are doing things right.

You will want as much reach as you can get. Two bodies, two lenses. Don't change lenses in the field. First trip I had max 480mm Equiv Crop sensor, second trip I had 200-800mm Equiv M4/3. The 800 was better, most shots on trip at 800. Scenery, atmosphere shots with second body and wider lens. Low light in morning and evening is an issue, best time for animals. Might break the no change lens rule to use 100-400 in morning, then add the extender once it get sunnier, just a thought. Really can't use a tripod except maybe at the camp. Jealous of your long trip! Travel light!

As for the idea of one camera body, I had a shutter fail half way through our trip to Nepal and Bhutan, have not traveled with one camera body since. On that trip a nice guy with two bodies loaned me one so I did not have to travel Bhutan with only a cell phone, I guess the sick look on my face caused him to have pity on me!

Olympus failed because of smart phones/cameras and the trend to full frame mirrorless among professionals and high end amateurs. My opinion only.

Just ordered the R6 and 100-500 lens. Lens is back-ordered. Excited to have my life changed by being broke and having a new camera to play with! Good luck with your new mirrorless world!

Olympus or Lumix M43 is the way to go for lightness, Fuji is a little heavier but that new X-S10 looks pretty sweet. I have Lumix G9 and GX-85, so light that sometimes I carry both so I don't need to change lenses. M43 lenses work on both Olympus and Lumix, I might get an Olympus body to play with also. Canon R5 looks awesome but I don't think I want to reverse back to the big stuff. M43 photo quality is excellent. FF is better in low light but so what? if you can't carry it. Keep on shooting!

Replacing the sky is a step too far for me. Putting a Maui sunset sky taken by someone else on a picture you took of a waterfall in New York is perhaps an exaggeration, but in my mind is no longer a photograph or particularly your photograph. Might be art, I guess.

We were there this past January. It is awesome, you will love it. I would say don't worry too much about the snow thing, it will work out, take a lot of pictures. Use your + exposure compensation but not too drastic, shoot raw, shoot in shutter priority with a fast shutter speed mostly as animals and birds are moving, the boat is moving, the zodiac is moving.

Good idea I saw was to practice with gloves, have a weather sealed camera for spray and rain. Plastic bags, dry bag, lots of batteries. I found it to be almost impossible to concentrate on camera settings when penguins and whales are jumping around you and you have cold hands and gloves, so keep it simple.

Auto ISO is your friend!

Good Luck!

Thanks JimH123 and AzpikLady!

I use Topaz Denoise AI as a LR add-on, it makes a TIFF file. How do I get it to make a DNG RAW type file instead?

Signed, Clueless!

Agree Pany G9 with 12-60 Pany-Leica (24 to 120 Equiv), if you can have only one!

Peak Design straps use a tripod plate to attach to so you have both capabilities on the camera at all times.

Always good to have more than one!

Panasonic G9 is the ticket. Can use your current lenses. Sizable body, great grip, super EVF.

My first digital was a G2 with 4 MegaPix, loved that camera! Opened up the world of digital to me.

I like the Journal of Wildlife Photography by Jared Lloyd. It is pricy at about $100 per year or $200 for life. Most is written by Jared. I've learned some things about LR editing and feel like it's worth the money, kind of makes you want to take more advantage of it since you paid for it. Good ideas about how, where and when to shoot different wildlife.