I realize this topic has been beaten to death. But I still haven't found a definitive answer.

I'm currently shooting a D810. My latest kick is shooting distant eagles and other birds at a local Wildlife Refuge.

I've been contemplating a D7200 for greater reach. However:

D810 = 36 mp
D7100 = 24mp

24x1.5 - 36mp




Someone over at Fred Miranda said you must 24 x 1.5 x 1.5 = 54mp

I just don't get it. Who knows the answer??

Remember, we have to take pixel pitch and pixel density into consideration as well, correct?

Thanks in advance,
Ponz

You'll see a lot of country.

But to be honest, I wouldn't recommend what you are doing. Instead, take the same time and money, and see Alaska. It is unique, and not like anything in the Lower-48. But the unique part is not connected by roads...

Guaranteed that what you will see is fantastic, but honestly even the part inside Alaska is no more fantastic than driving a big circle starting at home and traveling just as many miles. Everything on the highway system in Alaska, with a couple of exceptions that you are unlikely to ever even notice, is just the same here as it is there.

Fly to Anchorage, and then take another plane. Dillingham and Nome are two possible places to go, but Bethel, Kotzebue or Barrow are even better. In June I really would suggest coming to Barrow for Nalukataq (the Blanket Toss celebration). These places are uniquely part of Alaska and have almost nothing in common with the Lower-48. An entirely different way of life.

If you are really adventurous, trips to places like McGrath, Aniak, Unalakleet, Point Hope, Wainwright, Kaktovik, and/or Anuktuvuk Pass are one more step deeper into the uniqueness of culture in Alaska.