Pentax
K-x
 vs
Sony Alpha
DSLR-A330

Pentax K-x

70
Winner

Pentax K-x
"Image stabilisation via the camera body is a great feature that works very well when hand-holding the camera in low-light conditions."
photographyblog.com | talking about the K-x's image-stabilization
"The camera has a deep, contoured handgrip on the right-hand side, coated in a rubberized compound to aid grip, that enabled me to use three fingers to hold it and my right forefinger to operate the shutter button."
photographyblog.com | talking about the K-x's feel

Reasons to buy the Pentax K-x

Dynamic range
 Wide dynamic range
12.5 EV
Image stabilization
 Image stabilization
Sensor shift
Supports 24p
 24p movies
For that film look
Sensor size
 Large sensor
APS-C 23.6x15.8mm
HDR
 In-camera HDR
Combines multiple exposures
Shutter lag
 Barely any delay taking photos
97 ms shutter lag
Sony Alpha DSLR-A330

32

Reasons to buy the Sony Alpha DSLR-A330

Image stabilization
 Image stabilization
Sensor shift
Screen flips out
 Flip-out screen
Great for movies
Storage slots
 More storage slots
2
Weight
 Light-weight
529 g

differences

Advantages of the Pentax K-x
Low light performance Significantly lower noise at high ISO 811 ISO vs 535 ISO
Help
 The K-x has a slight edge (0.6 f-stops) in low noise, high ISO performance
Autofocus Faster autofocus Phase detection vs Contrast detection
Help
 Catch candid moments easily
Overall image quality Better image quality 72.0 vs 64.0
Help
 More than 10% better image quality
Dynamic range More dynamic range 12.5 EV vs 11.5 EV
Help
 1 f-stop more dynamic range
Movie format Shoots movies 720p @ 24fps vs None
Help
 Shoots HD (720p) video as well as still pictures
HDR Has in-camera HDR Yes vs No
Help
 Combines multiple exposures to capture high dynamic range
Viewfinder size Larger viewfinder 0.56x vs 0.48x
Help
 More than 30% larger viewfinder
Color depth Better color depth 22.8 bits vs 22.4 bits
Help
 Distinguishes 0.4 more bits of color
Continuous shooting Shoots faster 4.7 fps vs 2.5 fps
Help
 Around 90% faster continuous shooting
Sensor type Has a CMOS-family sensor CMOS vs CCD
Help
 CMOS-family sensors often produce better quality images
True resolution Higher true resolution 12.2 MP vs 10 MP
Help
 Capture more than 20% more detail in your photos
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
Light sensitivity (boost) Has boost ISO 12,800 ISO vs None
Help
 Allows taking photos in darker situations, often at the cost of additional noise in the image
Size Smaller 123x92x68 mm vs 128x97x71 mm
Help
 More than 10% smaller
Viewfinder coverage Better viewfinder coverage 96% vs 95%
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
Sensor size Slightly larger sensor APS-C 23.6x15.8mm vs APS-C 23.5x15.7mm
Help
 Almost the same
Thickness Thinner 2.7" vs 2.8"
Help
 Almost the same
Pentax K-x Learn more about
the Pentax K-x

Advantages of the Sony DSLR-A330
Screen flips out Has a flip-out screen Yes vs No
Help
 Flip-out screens can be helpful when composing tricky shots or taking movies
Storage slots Has more storage slots 2 vs 1
Help
 More slots allows storing more images without switching memory cards
Weight Lighter 529 g vs 580 g
Help
 Around 10% lighter
Sony Alpha DSLR-A330 Learn more about
the Sony DSLR-A330
vs

recommendations

Relative to the best recent entry-level DSLRs, and ignoring price

Pentax K-x Pentax K-x
70 vs 32
Explain scores
Sony Alpha DSLR-A330 Sony Alpha DSLR-A330
Green arrow Snapsort recommends the Pentax K-x.

advice

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similarities

Compared to recent entry-level DSLRs

Common Strengths Common Weaknesses
Image stabilization Good image stabilization Help
Sensor shift
Size Fairly small Help
K-x:123x92x68 mm
DSLR-A330:128x97x71 mm
Thickness Thin Help
K-x:2.7"
DSLR-A330:2.8"
True resolution Capture low resolution images Help
K-x:12.2 MP
DSLR-A330:10 MP
Autofocus No video autofocus Help
Manual focus only
Screen size Very small screens Help
2.7"
Screen resolution Low resolution screens Help
230k dots
Panorama Neither camera stitches together panoramas Help
You could stitch photos in post
3D Neither camera can take 3D photos Help
No 3d support
Light sensitivity Poor maximum light sensitivity Help
K-x:6,400 ISO
DSLR-A330:3,200 ISO
Weather sealed Neither is weather sealed Help
Need to shelter it from weather
Movie format One shoots movies Help
K-x:720p @ 24fps
DSLR-A330:None

dxomark

DXOMark

competitors

Shared Competitors

Advantages

Disadvantages
Nikon D3100

Nikon D3100

Entry-level DSLR

$500 - $547 with 18-55mm lens
Low light performance Is slightly less noisy at high ISO
Movie format Records higher quality movies
Fastest shutter speed Has a slower max shutter speed
Thickness Is thicker
Compare the D3100 vs the K-x
Compare the D3100 vs the Alpha DSLR-A330
Nikon D5100

Nikon D5100

Entry-level DSLR

$500 - $597 body only

$600 - $697 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
Compare the D5100 vs the K-x
Compare the D5100 vs the Alpha DSLR-A330
Canon EOS Rebel T2i

Canon Rebel T2i

Entry-level DSLR

$544 - $949 body only

$649 - $867 with 18-55mm lens
Movie format Records higher quality movies
Screen size Has a much larger screen
Fastest shutter speed Has a slower max shutter speed
Sensor size Has a slightly smaller sensor
Compare the Rebel T2i vs the K-x
Compare the Rebel T2i vs the Alpha DSLR-A330
Canon Rebel T3

Canon Rebel T3

Entry-level DSLR

$333 body only

$489 - $500 with 18-55mm lens
Lens availability Significantly more lenses available
Battery life Has a significantly longer battery life
Fastest shutter speed Has a slower max shutter speed
Thickness Is thicker
Compare the Rebel T3 vs the K-x
Compare the Rebel T3 vs the Alpha DSLR-A330
Canon Rebel T3i

Canon Rebel T3i

Entry-level DSLR

$619 - $700 body only

$745 - $1,000 with 18-55mm lens
Movie format Records higher quality movies
Screen size Has a much larger screen
Fastest shutter speed Has a slower max shutter speed
Thickness Is thicker
Compare the Rebel T3i vs the K-x
Compare the Rebel T3i vs the Alpha DSLR-A330
Canon EOS 60D

Canon EOS 60D

Pro DSLR

$848 - $1,304 body only

$1,177 - $1,342 with 18-135mm lens
Movie format Records higher quality movies
Screen size Has a much larger screen
Thickness Is thicker
Weight Is significantly heavier
Compare the EOS 60D vs the K-x
Compare the EOS 60D vs the Alpha DSLR-A330
Canon EOS Rebel T1i

Canon Rebel T1i

Entry-level DSLR

$475 - $629 body only

$549 - $580 with 18-55mm lens
Movie format Records higher quality movies
Screen size Has a much larger screen
Fastest shutter speed Has a slower max shutter speed
Sensor size Has a slightly smaller sensor
Compare the Rebel T1i vs the K-x
Compare the Rebel T1i vs the Alpha DSLR-A330

Pentax K-x Competitors

Advantages

Disadvantages
Pentax K-r

Pentax K-r

Entry-level DSLR

$631 - $649 with 18-55mm lens
Screen size Much larger screen
Screen resolution Much higher resolution screen
Supports 24p No 24p support
Low light performance Slightly more noise at high ISO
Compare the K-r vs the K-x
Pentax K-5

Pentax K-5

Entry-level DSLR

$888 - $1,129 body only

$1,033 - $1,283 with 18-55mm lens
Low light performance Significantly lower noise at high ISO
Overall image quality Significantly better image quality
Supports 24p No 24p support
Size Larger
Compare the K-5 vs the K-x
Nikon D90

Nikon D90

Entry-level DSLR

$897 body only

$1,047 with 55-200mm lens
Screen size Much larger screen
Screen resolution Much higher resolution screen
Image stabilization No image stabilization
Cross type focus points Many fewer cross-type focus points
Compare the D90 vs the K-x

Sony Alpha DSLR-A330 Competitors

Advantages

Disadvantages
Sony Alpha DSLR-A390

Sony Alpha DSLR-A390

Entry-level DSLR

$471 with 18-55mm lens
Autofocus Faster autofocus
Low light performance Lower noise at high ISO
Size Significantly larger
Thickness Much thicker
Compare the Alpha DSLR-A390 vs the Alpha DSLR-A330
Sony Alpha DSLR-A300

Sony Alpha DSLR-A300

Entry-level DSLR
Color depth Better color depth
Continuous shooting Shoots slightly faster
Storage slots Has fewer storage slots
Dynamic range Less dynamic range
Compare the Alpha DSLR-A300 vs the Alpha DSLR-A330
Sony Alpha DSLR-A350

Sony Alpha DSLR-A350

Entry-level DSLR

$972 body only
True resolution Significantly higher true resolution
Low light performance Slightly lower noise at high ISO
Size Larger
Weight Significantly heavier
Compare the Alpha DSLR-A350 vs the Alpha DSLR-A330

appearance

Pentax K-x Sony Alpha DSLR-A330
Pentax K-x Sony Alpha DSLR-A330
Pentax K-x Sony Alpha DSLR-A330

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