Sunday, April 7, 2013

D7100 vs D7000 Part II

This is brief excerpt from the main review, which has been updated. Friends, family, my dog, my friend's dogs, etc., were giving me grief about how far off the D7000 sample was, so I re-shot it. It's pretty much as I stated before, the D7000 would be closer to the D7100 with better technique, and is, but the differences are still easy to spot. Or put another way, the D7100 can pick up more detail and is more contrasty than the D7000, so much so, that you can still notice the difference with sloppy shooting.

Here's an example of what the D7100 can do compared to the D7000, featuring a Canadian $10 bill. Before you ask, yes, this is a legal reproduction under Section 457 of the Canadian criminal code. (Smaller than 3/4 or greater than 1.5 times the length or width, in black and white, or featuring one side only)

(There was nothing else I had on hand that would have been suitable, so yes, the setup is atrocious and the bill isn't even perfectly flat, but I think the differences will be reasonable obvious What really messed things up the first time was that the D7100 had face detection on and the D7000 didn't, meaning that one camera focused on the eyes and the other on the center of the bill. That's enough to throw focus off when you account for the field curvature of the lens. Because light was limited, I couldn't stop down far enough to mitigate this). When you zoom in on John A. Macdonald's eyes, this is what you see:

Nikon D7100, ISO 800, f/4, 1/800s

Here's a sample from a D7000, same object magnification:

D7000, ISO 800, f/4, 1/400s

The things that you notice:
  • The contrast rendition on the D7100 looks heavier. Take home point: don't overdo it with the sharpening on the D7100
  • The D7000 looks great, but can't match the resolving power. Look at the areas where the lines get tighter and closer together... especially in the corners of the whites of the eyes, and in the concentric circles in the iris's. 
  • Same sentiment still stands... for both cameras, this is more detail than you would ever notice on a daily basis. 

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