Updated (September, 2010): Compare the Nikon D7000 vs Pentax K-x

Nikon D90

Winner
Nikon D90

68

vs

Pentax K-x

63

Pentax K-x

Runner-up
     

Reasons to buy the Nikon D90

Large viewfinder
Viewfinder size
0.63x
Great viewfinder
Viewfinder
Pentaprism
Great battery life
Battery life
850 shots
Built-in focus motor
Badge
Autofocuses with more lenses
 

Reasons to buy the Pentax K-x

Image stabilization
Image stabilization
Sensor shift
HDR
In-camera HDR
Combines multiple exposures
Shutter lag
Barely any delay taking photos
97 ms shutter lag
Size
Really small
Prosumer size 123x92x68 mm
 

differences

Advantages of the Nikon D90

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Screen resolution
Much higher resolution screen
930k dots vs 230k dots
Help
More than 4x higher resolution screen
Screen size
Much larger screen
3.0" vs 2.7"
Help
More than 10% larger screen
Low light performance
Lower noise at high ISO
977 ISO vs 811 ISO
Help
The D90 has a slight edge (0.3 f-stops) in low noise, high ISO performance
Viewfinder size
Significantly larger viewfinder
0.63x vs 0.56x
Help
Around 30% larger viewfinder
Lens availability
Much more lenses available
205 lenses vs 109 lenses
Help
Around 90% more lenses available
Battery life
Much longer battery life
850 shots vs 420 shots
Help
More than 2x more shots per battery charge
Built-in focus motor
Has a built-in focus motor
Yes vs No
Help
Autofocuses with all autofocus lenses
Viewfinder
Has a pentaprism viewfinder
Pentaprism vs Pentamirror
Help
Pentaprism viewfinders are typically brighter
Startup delay
Less startup delay
300 ms vs 600 ms
Help
2x less delay when turning on
Overall image quality
Slightly better image quality
73.0 vs 72.0
Help
Almost the same
Lowest price
Slightly cheaper
$639.99 vs $700.14
Help
The best price we've seen is $60 cheaper (around 10% less)
Nikon D90 Learn more about
the Nikon D90

Advantages of the Pentax K-x

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Image stabilization
Image stabilization
Sensor shift vs None
Help
Helps eliminate blur caused by small camera movements
HDR
Has in-camera HDR
Yes vs No
Help
Combines multiple exposures to capture high dynamic range
Shutter lag
Significantly less shutter lag
97 ms vs 208 ms
Help
2.1x less delay when taking photos
Size
Much smaller
123x92x68 mm vs 132x103x77 mm
Help
Around 30% smaller
Cross type focus points
Significantly more cross-type focus points
9 vs 1
Help
Grab focus in difficult situations
Thickness
Much thinner
2.7" vs 3"
Help
More than 10% thinner
Light sensitivity (boost)
Better boost ISO
12,800 ISO vs 6,400 ISO
Help
The K-x's boost ISO is 1 f-stop better
Light sensitivity
Better maximum light sensitivity
6,400 ISO vs 3,200 ISO
Help
The K-x's maximum light sensitivity is 1 f-stop better
Weight
Lighter
580 g vs 703 g
Help
Around 20% lighter
Continuous shooting
Shoots slightly faster
4.7 fps vs 4.5 fps
Help
Almost the same
Fastest shutter speed
Significantly faster max shutter speed
1/6000s vs 1/4000s
Help
More than 30% faster max shutter speed
Pentax K-x Learn more about
the Pentax K-x
vs

recommendations

Which camera do we recommend? Relative to the best recent entry-level DSLRs, and ignoring price

Snapsort Recommends
Nikon D90 Nikon D90 68
Retailer
    Style
      Color
        You save

        vs

        63 Pentax K-x Pentax K-x
        Retailer
          Style
            Color
              You save

              similarities

              Compared to recent entry-level DSLRs

              Common Strengths

              Snapsort is not aware of any interesting strengths shared by these two products.

              Common Weaknesses
              Movie format Both shoot high resolution HD movies Help
              720p @ 24fps
              Autofocus No video autofocus Help
              Manual focus only
              Light sensitivity (boost) Poor boost ISO Help
              D90:6,400 ISO
              K-x:12,800 ISO
              True resolution Capture low resolution images Help
              12.2 MP
              External mic jack Neither has an external mic jack Help
              Limited to the in-camera mic
              Viewfinder coverage Below average viewfinder coverage Help
              96%
              Light sensitivity Poor maximum light sensitivity Help
              D90:3,200 ISO
              K-x:6,400 ISO
              Continuous shooting Slow continuous shooting Help
              D90:4.5 fps
              K-x:4.7 fps
              Screen flips out No flip-out screens Help
              Less flexible
              Focus points Few focus points Help
              11
              Weather sealed Neither is weather sealed Help
              Need to shelter it from weather
              Touch screen No touchscreens Help
              More buttons

              dxomark

              DXOMark

              competitors

              Shared Competitors

              Advantages

              Disadvantages

              Nikon D3200

              Nikon D3200

              Entry-level DSLR

              $302 - $527 body only

              $389 - $447 with 18-55mm lens

              Low light performance Is slightly less noisy at high ISO
              Overall image quality Has slightly better image quality
              Fastest shutter speed Has a slower max shutter speed
              Thickness Is thicker
              Nikon D5100

              Nikon D5100

              Entry-level DSLR

              $349 - $360 body only

              $409 - $490 with 18-55mm lens

              Low light performance Is slightly less noisy at high ISO
              Overall image quality Has slightly better image quality
              Fastest shutter speed Has a slower max shutter speed
              Thickness Is thicker
              Canon EOS 60D

              Canon EOS 60D

              Pro DSLR

              $699 - $799 body only

              $899 - $1,299 with 18-135mm lens

              Movie format Records higher quality movies
              Screen resolution Has a slightly higher resolution screen
              Thickness Is thicker
              Weight Is significantly heavier
              Nikon D3100

              Nikon D3100

              Entry-level DSLR

              $220 - $343 body only

              $385 - $403 with 18-55mm lens

              Movie format Records higher quality movies
              True resolution Takes slightly higher resolution photos
              Fastest shutter speed Has a slower max shutter speed
              Thickness Is thicker
              Nikon D3300

              Nikon D3300

              Entry-level DSLR

              $397 body only

              $429 - $497 with 18-55mm lens

              Low light performance Is significantly less noisy at high ISO
              Overall image quality Has slightly better image quality
              Fastest shutter speed Has a slower max shutter speed
              Thickness Is thicker
              Canon Rebel T3i

              Canon Rebel T3i

              Entry-level DSLR

              $499 - $648 body only

              $550 - $620 with 18-55mm lens

              Movie format Records higher quality movies
              Screen resolution Has a slightly higher resolution screen
              Fastest shutter speed Has a slower max shutter speed
              Thickness Is thicker
              Nikon D80

              Nikon D80

              Entry-level DSLR

              $1,799 body only

              $1,500 with 18-135mm lens

              Fastest shutter speed Has a slower max shutter speed
              Lowest price Is much more expensive

              Nikon D90 Competitors

              Advantages

              Disadvantages

              Nikon D7000

              Nikon D7000

              Entry-level DSLR

              $615 body only

              $600 - $1,025 with 18-55mm lens

              Movie format Higher resolution movies
              Autofocus Video autofocus
              Shutter lag More shutter lag
              Viewfinder size Slightly smaller viewfinder
              Nikon D7100

              Nikon D7100

              Entry-level DSLR

              $997 body only

              $1,170 - $1,297 with 18-140mm lens

              Movie format Higher resolution movies
              Low light performance Lower noise at high ISO
              Shutter lag More shutter lag
              Viewfinder size Smaller viewfinder
              Nikon D5300

              Nikon D5300

              Entry-level DSLR

              $697 body only

              $745 - $797 with 18-55mm lens

              Movie format Higher resolution movies
              Low light performance Significantly lower noise at high ISO
              Viewfinder size Significantly smaller viewfinder
              Battery life Significantly shorter battery life
              Nikon D5200

              Nikon D5200

              Entry-level DSLR

              $479 - $547 body only

              $499 - $647 with 18-55mm lens

              Movie format Higher resolution movies
              Low light performance Significantly lower noise at high ISO
              Viewfinder size Much smaller viewfinder
              Battery life Significantly shorter battery life

              Pentax K-x Competitors

              Advantages

              Disadvantages

              Pentax K-r

              Pentax K-r

              Entry-level DSLR

              $399 body only

              $554 with 18-55mm lens

              Screen resolution Much higher resolution screen
              Screen size Much larger screen
              Supports 24p No 24p support
              Low light performance Slightly more noise at high ISO
              Pentax K-50

              Pentax K-50

              Entry-level DSLR

              $337 - $397 body only

              $83 - $497 with 18-55mm lens

              Movie format Higher resolution movies
              Screen resolution Much higher resolution screen
              Shutter lag More shutter lag
              Size Larger
              Pentax K10D

              Pentax K10D

              Entry-level DSLR

              Weather sealed Weather sealed
              Viewfinder size Significantly larger viewfinder
              Movie format Does not take movies
              Live view No live view
              Pentax K-30

              Pentax K-30

              Entry-level DSLR

              $370 body only

              $449 - $560 with 18-55mm lens

              Movie format Higher resolution movies
              Screen resolution Much higher resolution screen
              Startup delay More startup delay
              Shutter lag More shutter lag
              Pentax K-m

              Pentax K-m

              Entry-level DSLR

              $842 with 18-55mm, 50-200mm lenses

              Movie format Does not take movies
              Live view No live view

              appearance

              Nikon D90 Pentax K-x
              Nikon D90 Pentax K-x
              Nikon D90 Pentax K-x

              discussion

              Nikon D90
              D90
              Nikon

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              Pentax K-x
              K-x
              Pentax

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