Updated (August, 2011): Compare the Sony Alpha DSLR-A100 vs Sony SLT-A65

Sony SLT-A55

Winner
Sony SLT-A55

71

vs

Sony Alpha DSLR-A100

31

Sony Alpha DSLR-A100

Runner-up
     
 

Reasons to buy the Sony SLT-A55

Movie format
Full HD
1080p @ 30fps
Screen size
Large screen
3.0"
Screen resolution
High resolution screen
921k dots
Viewfinder size
Large viewfinder
0.72x
 

Reasons to buy the Sony Alpha DSLR-A100

Startup delay
Almost no delay when powering up
1100 ms startup delay
Sensor size
Large sensor
APS-C 23.6x15.8mm
Viewfinder
Great viewfinder
Pentamirror
Battery life
Great battery life
750 shots
 
Differences | Recommendations | Cast your vote | Similarities | Competitors | Appearance | Discussion

differences

Advantages of the Sony DSLR-A100

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Viewfinder Has an optical viewfinder Pentamirror vs Digital
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Optical viewfinders save battery life and are more detailed
Battery life Much longer battery life 750 shots vs 330 shots
Help
Around 2.5x more shots per battery charge
Thickness Much thinner 2.8" vs 3.3"
Help
Around 20% thinner
Size Smaller 133x95x71 mm vs 124x92x85 mm
Help
Around 10% smaller
Sensor size Larger sensor APS-C 23.6x15.8mm vs APS-C 23.5x15.6mm
Help
Almost the same
Sony Alpha DSLR-A100 Learn more about
the Sony DSLR-A100

Advantages of the Sony SLT-A55

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Movie format Shoots movies 1080p @ 30fps vs None
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Shoots Full HD (1080p) video as well as still pictures
Screen size Much larger screen 3.0" vs 2.5"
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More than 20% larger screen
Low light performance Significantly lower noise at high ISO 816 ISO vs 476 ISO
Help
The SLT-A55 has a slight edge (0.8 f-stops) in low noise, high ISO performance
Screen resolution Much higher resolution screen 921k dots vs 230k dots
Help
More than 4x higher resolution screen
Live view Has live view Yes vs No
Help
Preview your photos on the camera's screen before taking them
Overall image quality Significantly better image quality 73.0 vs 61.0
Help
Around 20% better image quality
Dynamic range More dynamic range 12.4 EV vs 11.2 EV
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1.2 f-stops more dynamic range
Autofocus Video autofocus Phase detection vs None
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Automatically focuses shooting video
Autofocus Faster autofocus Phase detection vs Contrast detection
Help
Catch candid moments easily
Viewfinder size Much larger viewfinder 0.72x vs 0.54x
Help
More than 70% larger viewfinder
Continuous shooting Shoots much faster 10 fps vs 3 fps
Help
Around 3.5x faster continuous shooting
3D Takes 3D photos Yes vs No
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Combines multiple photos into a 3D image
HDR Has in-camera HDR Yes vs No
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Combines multiple exposures to capture high dynamic range
Color depth Better color depth 23 bits vs 22 bits
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Distinguishes 1 more bits of color
Panorama Can create panoramas in-camera Yes vs No
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Stitches together multiple photos for a wide perspective
GPS Has a GPS Yes vs No
Help
Automatically geotags your photos when traveling
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
True resolution Significantly higher true resolution 16 MP vs 10 MP
Help
Capture around 60% more detail in your photos
Shutter lag Significantly less shutter lag 220 ms vs 310 ms
Help
Around 30% less delay when taking photos
Sensor type Has a CMOS-family sensor CMOS vs CCD
Help
CMOS-family sensors often produce better quality images
Light sensitivity (boost) Has boost ISO 25,600 ISO vs None
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Allows taking photos in darker situations, often at the cost of additional noise in the image
Light sensitivity Better maximum light sensitivity 12,800 ISO vs 1,600 ISO
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The SLT-A55's maximum light sensitivity is 3 f-stops better
Startup delay Less startup delay 900 ms vs 1100 ms
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Around 20% less delay when turning on
Weight Lighter 500 g vs 638 g
Help
More than 20% lighter
Sony SLT-A55 Learn more about
the Sony SLT-A55
vs

recommendations

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

Snapsort Recommends
Sony Alpha DSLR-A100 Sony Alpha DSLR-A100 31

vs

71 Sony SLT-A55 Sony SLT-A55
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        similarities

        Compared to recent entry-level DSLRs

        Common Strengths Common Weaknesses
        Image stabilization Good image stabilization Help
        Sensor shift
        Fastest shutter speed Slow max shutter speed Help
        1/4000 of a second
        True resolution Capture low resolution images Help
        DSLR-A100:10 MP
        SLT-A55:16 MP
        Lens availability Few lenses available Help
        123 lenses
        Weather sealed Neither is weather sealed Help
        Need to shelter it from weather
        Movie format One shoots movies Help
        DSLR-A100:None
        SLT-A55:1080p @ 30fps
        Low light performance Above average noise at high ISO Help
        DSLR-A100:476 ISO
        SLT-A55:816 ISO

        dxomark

        DXOMark

        competitors

        Shared Competitors

        Advantages

        Disadvantages

        Sony SLT A58

        Sony SLT A58

        Entry-level DSLR

        $448 with 18-55mm lens

        True resolution Takes slightly higher resolution photos
        Supports 24p Records movies in 24p
        Thickness Is thicker
        Size Is slightly larger
        Sony SLT-A37

        Sony SLT-A37

        Entry-level DSLR

        $430 - $479 with 18-55mm lens

        Supports 24p Records movies in 24p
        Shutter lag Has significantly less shutter lag
        Thickness Is thicker
        Size Is slightly larger
        Canon Rebel T3i

        Canon Rebel T3i

        Entry-level DSLR

        $499 - $648 body only

        $200 - $570 with 18-55mm lens

        True resolution Takes slightly higher resolution photos
        Supports 24p Records movies in 24p
        Thickness Is thicker
        Weight Is slightly heavier
        Nikon D5100

        Nikon D5100

        Entry-level DSLR

        $378 - $415 body only

        $495 - $562 with 18-55mm lens

        Low light performance Is significantly less noisy at high ISO
        Overall image quality Has slightly better image quality
        Thickness Is thicker
        Size Is slightly larger
        Nikon D3200

        Nikon D3200

        Entry-level DSLR

        $319 body only

        $477 with 18-55mm lens

        Low light performance Is significantly less noisy at high ISO
        Overall image quality Has slightly better image quality
        Thickness Is thicker
        Sensor size Has a marginally smaller sensor
        Sony Alpha ILC-3000

        Sony Alpha ILC-3000

        Mirrorless interchangeable-lens

        Low light performance Is slightly less noisy at high ISO
        Overall image quality Has slightly better image quality
        Sensor cleaning Lacks a self cleaning sensor
        Movie continuous focus Doesn't focus continuously while recording movies
        Canon EOS 60D

        Canon EOS 60D

        Pro DSLR

        $641 - $699 body only

        $450 - $1,182 with 18-135mm lens

        True resolution Takes slightly higher resolution photos
        Weather sealed Has a weather sealed body
        Thickness Is thicker
        Weight Is much heavier

        Sony Alpha DSLR-A100 Competitors

        Advantages

        Disadvantages

        Sony Alpha DSLR-A200

        Sony Alpha DSLR-A200

        Entry-level DSLR

        Autofocus Faster autofocus
        Screen size Significantly larger screen
        Startup delay More startup delay
        Size Slightly larger
        Canon EOS 20D

        Canon EOS 20D

        Entry-level DSLR

        Low light performance Lower noise at high ISO
        Lens availability Significantly more lenses available
        Screen size Much smaller screen
        Image stabilization No image stabilization
        Sony Alpha DSLR-A230

        Sony Alpha DSLR-A230

        Entry-level DSLR

        Screen size Significantly larger screen
        Shutter lag Significantly less shutter lag
        Battery life Significantly shorter battery life
        Continuous shooting Shoots slightly slower

        Sony SLT-A55 Competitors

        Advantages

        Disadvantages

        Sony SLT A57

        Sony SLT A57

        Entry-level DSLR

        $846 with 18-55mm lens

        Movie format Higher frame rate movies
        Supports 24p Supports 24p
        GPS No built-in GPS
        Low light performance Slightly more noise at high ISO
        Sony SLT-A65

        Sony SLT A65

        Entry-level DSLR

        $798 with 18-55mm lens

        Movie format Higher frame rate movies
        Supports 24p Supports 24p
        Startup delay Much more startup delay
        Low light performance More noise at high ISO
        Sony SLT-A77

        Sony SLT A77

        Pro DSLR

        $1,103 body only

        $1,298 with 16-50mm lens

        Movie format Higher frame rate movies
        Supports 24p Supports 24p
        Startup delay Much more startup delay
        Size Much larger
        Sony SLT-A33

        Sony SLT-A33

        Entry-level DSLR

        Dynamic range More dynamic range
        Startup delay Slightly less startup delay
        Low light performance More noise at high ISO
        GPS No built-in GPS

        appearance

        Sony Alpha DSLR-A100 Sony SLT-A55
        Sony Alpha DSLR-A100 Sony SLT-A55
        Sony Alpha DSLR-A100 Sony SLT-A55

        discussion

        Sony Alpha DSLR-A100
        Alpha DSLR-A100
        Sony

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        Sony SLT-A55
        SLT-A55
        Sony

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