You're trying to figure out what camera gear to take to Alaska. The size and weight of your equipment is limited when you travel, but you don't want to come up short in the quality of the photos you can take during your travels.
Unless you're upgrading from an existing consumer level or outdated camera I recommend you get an APS-C "crop" sensor camera to photograph Alaska, rather then a full frame sensor camera.
The pixel count on the newer crop cameras is really high and image quality coming from these smaller cameras is fantastic. The photo of the Alaskan mountain range above was taken with a compact advanced point-n-shoot camera with a 1 inch sensor. That sensor is only slightly smaller than an APS-C "crop" sensor.
During my first trip to photograph Alaska back in 2014, I took 3 cameras. I had two DSLRs, and that advanced point and shoot from Canon, a G1X Mark II. My main camera was a full frame sensor Canon 5D Mark III, and I had an APS-C crop sensor 70D as my emergency backup.
Nowadays I travel even lighter. With my most recent trip to Scotland, I went bare-bones, only taking a mirrorless APS-C Canon R7 and two lenses. Here's my post on Scotland Camera Gear I chose.
The best camera to use to photograph Alaska is always the one you have with you. It's got to be able to be accessed quickly as soon as the photo op presents itself to you.
For instance, when we were bushwhacking through the dense rain forest in Southeast Alaska, I needed a camera that could be carried securely, protected from branches and rain,but easily accessed. I had a small DSLR and basic kit lens to keep it compact and fitting in my belly bag under my raincoat.
I recommend you get a Mirrorless Interchangeable Lens Camera, also know as a MILC. Make sure your camera and your lenses have weather sealing as protection against the "Alaskan Liquid Sunshine," also known as rain.
Getting a lens with the right focal length is the most important aspect when choosing a lens for photographing your travels in Alaska. Most lenses are fairly sharp, but you'll get the ultimate in quality image if you splurge on a professional lens. Most first-timers to Alaska want a general purpose zoom lens with at least a 5x or better zoom range.
For crop sensor (APS-C) cameras look for a wide angle zoom lens with a focal range similar to the 10-18 or 11-22mm range for those epic landscape photos of the amazing countryside in Alaska.
Match that with a telephoto zoom such as a 55-250mm or a 28-300mm lens to get those long distant photos of wildlife and close-up detail shots of the environment.
If you're interested in shooting professional level quality, you'll want to go the added expense of getting yourself a full frame camera and matching lenses. For Nikon, the DX-format has the smaller sensor at 24x16mm. The larger full frame FX format sensor measures 36x24mm.
With Canon the larger lenses for the full frame format are labeled EF and the smaller "crop" sensor cameras take the smaller EF-S lenses.
For full-frame cameras look for a wide angle zoom lens with a focal
range similar to the 16-35 or 24-105mm range for those wide scenic views of
the mountains, lakes, streams, and the countryside of Alaska. If your aim is to photograph long distance targets like the moose below, you'll need a longer lens.
Add a powerful telephoto lens like a 200-500mm, 100-400mm to photograph the wildlife, which is often positioned far away in the distance.
Glaciers make for great subjects to photograph when you travel to Alaska, just as they do for photography trips to Iceland. Zoom lenses give you the versatility of adjusting your photo's composition when you can't adjust your vantage point fopr eyeing up the shot.
In addition to choosing the right camera and lens combination, you
need to know about a few other vital accessories that could come in very
hand in your travels. Although none of them are required, you might
consider including them as part of your gear to take along.
RAIN PROTECTION. Even if you have weather sealed camera bodies and lenses, you may need added protection for both you and your gear. Alaska is known for its rain, called "liquid sunshine" by tour guides.
TRAVEL TRIPOD. The Alaskan night sky is a great subject to photograph because of the reduced light pollution. Additionally, if you want to shoot any "selfies" where you're a part of the wide scenic beauty of Alaska, a tripod will come in handy. See my post on travel tripods.
POLARIZING FILTER. For enhance color saturation and reducing reflections, using a polarizing filter will make your Alaska photos more vibrant.
Here are some answers to some frequently asked questions about photography in Alaska.
I hope this post on camera gear helps you with your travels. See the related posts below my bio information .