What is the Difference Between Nikon D3100 and D7000?

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The Nikon D3100 and D7000 are both DSLR cameras from Nikon, but they have several differences in terms of performance, features, and build. Here are the key differences between the two models:

Nikon D7000:

  • Higher effective ISO: 1,167 vs 919 ISO, allowing for better low-light photography with less noise.
  • More dynamic range: 13.9 vs 11.2 EVs.
  • Lossless compressed raw format: This format offers the advantages of shooting raw while taking up less storage space.
  • Heavier and more durable build: The D7000 has a more solid construction, making it feel more balanced with larger lenses.

Nikon D3100:

  • Better portability: The D3100 is smaller and lighter than the D7000, making it more portable.
  • Video quality: The D3100's video quality is comparable to the D5100 and D7000.

Overall, the Nikon D7000 is considered the winner in this comparison, as it outperforms the D3100 in most criteria except for portability.

Comparative Table: Nikon D3100 vs D7000

Here is a table comparing the differences between the Nikon D3100 and Nikon D7000:

Feature Nikon D3100 Nikon D7000
Sensor Resolution 14.2 MP 16.1 MP
Sensor Technology CMOS CMOS
Sensor Format APS-C APS-C
Sensor Size 23.1 x 15.4 mm 23.6 x 15.7 mm
Sensor Area 355.74 mm2 370.52 mm2
Sensor Diagonal 27.8 mm 28.3 mm
Crop Factor 1.5x 1.5x
Launch Date August 2010 September 2010
Launch Price $599 $1,499
Focus Points 11 39
ISO Range 100-3200 100-6400
Maximum ISO 12800 25600
Battery Life 550 shots 1050 shots
Body Weight 455g 690g

The Nikon D7000 has a higher sensor resolution, more focus points, a larger ISO range, and a higher maximum ISO than the Nikon D3100. However, the D3100 is more portable and has a longer battery life.