Sony SLT-A77

vs
Sigma SD1
 
 
 
 

Reasons to buy the Sony SLT A77

Viewfinder size
 Large viewfinder
0.72x
Image stabilization
 Image stabilization
Sensor shift
True resolution
 High true resolution
24 MP
Live view
 Has live view
Preview your photos
 

Reasons to buy the Sigma SD1

Weather sealed
 Weather sealed
Shoot in extreme weather
Viewfinder
 Great viewfinder
Pentaprism
Fastest shutter speed
 Fast shutter speed
1/8000 of a second
 
Differences | Recommendations | Similarities | Competitors | Appearance | Discussion

differences

Advantages of the Sigma SD1
Viewfinder Has an optical viewfinder Pentaprism vs Digital
Help
 Optical viewfinders save battery life and are more detailed
Thickness Slightly thinner 3.1" vs 3.2"
Help
 Almost the same
Weight Slightly lighter 706 g vs 732 g
Help
 Almost the same
Sigma SD1 Learn more about
the Sigma SD1

Advantages of the Sony SLT A77
Live view Has live view Yes vs No
Help
 Preview your photos on the camera's screen before taking them
Movie format Shoots movies 1080p @ 60fps vs None
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 Shoots Full HD (1080p) video as well as still pictures
Screen resolution Significantly higher resolution screen 921k dots vs 460k dots
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 More than 2x higher resolution screen
Shutter lag Much less shutter lag 124 ms vs 382 ms
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 3.1x less delay when taking photos
Autofocus Video autofocus Phase detection vs None
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 Automatically focuses shooting video
Image stabilization Image stabilization Sensor shift vs None
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 Helps eliminate blur caused by small camera movements
Continuous shooting Shoots much faster 12 fps vs 5 fps
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 Around 2.5x faster continuous shooting
HDR Has in-camera HDR Yes vs No
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 Combines multiple exposures to capture high dynamic range
3D Takes 3D photos Yes vs No
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 Combines multiple photos into a 3D image
Panorama Can create panoramas in-camera Yes vs No
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 Stitches together multiple photos for a wide perspective
True resolution Significantly higher true resolution 24 MP vs 15.4 MP
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 Capture around 60% more detail in your photos
Screen flips out Has a flip-out screen Yes vs No
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 Flip-out screens can be helpful when composing tricky shots or taking movies
Startup delay Significantly less startup delay 3100 ms vs 4500 ms
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 More than 30% less delay when turning on
Viewfinder size Larger viewfinder 0.72x vs 0.62x
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 More than 30% larger viewfinder
Lens availability Significantly more lenses available 92 lenses vs 45 lenses
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 More than 2x more lenses available
GPS Has a GPS Yes vs No
Help
 Automatically geotags your photos when traveling
Light sensitivity Better maximum light sensitivity 16,000 ISO vs 6,400 ISO
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 The SLT A77's maximum light sensitivity is 1.3 f-stops better
Cross type focus points More cross-type focus points 11 vs 2
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 Grab focus in difficult situations
Viewfinder coverage Better viewfinder coverage 100% vs 98%
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 Almost the same
Focus points More focus points 19 vs 11
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 Set focus accurately within the frame
Size Smaller 143x104x81 mm vs 146x113x80 mm
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 Around 10% smaller
Lowest price Cheaper $898.00 vs $1,899.00
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 The best price we've seen is $1,001 cheaper (2.1x less)
Sony SLT-A77 Learn more about
the Sony SLT A77
vs

recommendations

Snapsort can't make a recommendation (yet) because it doesn't have enough data yet about the Sigma SD1.

similarities

Compared to recent DSLRs

Common Strengths Common Weaknesses
Weather sealed Weather sealed Help
Shoot in extreme weather
Fastest shutter speed Fast max shutter speeds Help
1/8000 of a second
Built-in flash Each has a built-in flash Help
External flash not needed
Storage slots Fewer storage slots Help
1
Startup delay Significant startup delay Help
SD1:4500 ms
SLT A77:3100 ms
Lens availability Few lenses available Help
SD1:45 lenses
SLT A77:92 lenses
Sensor size Very small sensors Help
SD1:APS-C 23.5x15.7mm
SLT A77:APS-C 23.5x15.6mm

dxomark

DXOMark

competitors

Shared Competitors

Advantages

Disadvantages
Nikon D7100

Nikon D7100

Entry-level DSLR

$1,197 body only

$1,497 with 18-105mm lens
Low light performance Is slightly less noisy at high ISO
Overall image quality Has slightly better image quality
Shutter lag Has significantly more shutter lag
Compare the D7100 vs the SD1
Compare the D7100 vs the SLT A77
Nikon D7000

Nikon D7000

Entry-level DSLR

$897 body only

$997 with 18-105mm lens
Startup delay Has much less startup delay
Lens availability Much more lenses available
Shutter lag Has significantly more shutter lag
Compare the D7000 vs the SD1
Compare the D7000 vs the SLT A77
Canon EOS 7D

Canon EOS 7D

Pro DSLR

$1,299 - $1,725 body only

$1,499 with 28-135mm lens
Startup delay Has much less startup delay
Lens availability Much more lenses available
Weight Is slightly heavier
Color depth Has significantly less color depth
Compare the EOS 7D vs the SD1
Compare the EOS 7D vs the SLT A77
Sony SLT-A99

Sony SLT-A99

Pro DSLR

$2,798 body only

$3,196 - $3,198 with 28-75mm lens
Low light performance Is slightly less noisy at high ISO
Overall image quality Has slightly better image quality
Built-in flash Doesn't have a built-in flash
Lowest price Is slightly more expensive
Compare the SLT-A99 vs the SD1
Compare the SLT-A99 vs the SLT A77
Sony NEX-7

Sony NEX-7

Mirrorless interchangeable-lens

$948 body only

$1,098 with 18-55mm lens
Startup delay Has much less startup delay
Size Is much smaller
Fastest shutter speed Has a slower max shutter speed
Shutter lag Has significantly more shutter lag
Compare the NEX-7 vs the SD1
Compare the NEX-7 vs the SLT A77
Canon EOS 6D

Canon EOS 6D

Pro DSLR

$1,899 - $1,917 body only

$2,399 with 24-105mm lens
Low light performance Is significantly less noisy at high ISO
Screen resolution Has a slightly higher resolution screen
Fastest shutter speed Has a slower max shutter speed
Built-in flash Doesn't have a built-in flash
Compare the EOS 6D vs the SD1
Compare the EOS 6D vs the SLT A77
Canon EOS 5D Mark II

Canon EOS 5D Mark II

Pro DSLR

$2,405 body only

$2,699 - $3,000 with 24-105mm lens
Low light performance Is significantly less noisy at high ISO
Startup delay Has much less startup delay
Built-in flash Doesn't have a built-in flash
Weight Is slightly heavier
Compare the EOS 5D Mark II vs the SD1
Compare the EOS 5D Mark II vs the SLT A77

Sigma SD1 Competitors

Advantages

Disadvantages
Nikon D800

Nikon D800

Pro DSLR

$2,797 body only

$3,187 with 70-300mm lens
Startup delay Much less startup delay
Live view Has live view
Continuous shooting Shoots slower
Weight Heavier
Compare the D800 vs the SD1
Sigma SD15

Sigma SD15

Entry-level DSLR

$850 body only

$1,038 with 18-50mm lens
Size Slightly smaller
Lowest price Cheaper
Screen resolution Significantly lower resolution screen
True resolution Much lower true resolution
Compare the SD15 vs the SD1

Sony SLT-A77 Competitors

Advantages

Disadvantages
Sony SLT-A65

Sony SLT A65

Entry-level DSLR

$587 - $648 body only

$748 - $1,005 with 18-55mm lens
Startup delay Less startup delay
Size Smaller
Weather sealed No weather sealing
Overall image quality Worse image quality
Compare the SLT A65 vs the SLT A77
Nikon D5200

Nikon D5200

Entry-level DSLR

$697 body only

$797 with 18-55mm lens
Startup delay Much less startup delay
Low light performance Lower noise at high ISO
Viewfinder size Much smaller viewfinder
Image stabilization No image stabilization
Compare the D5200 vs the SLT A77
Canon EOS 60D

Canon EOS 60D

Pro DSLR

$649 - $968 body only

$949 - $1,182 with 18-135mm lens
Startup delay Much less startup delay
Viewfinder Has an optical viewfinder
Dynamic range Less dynamic range
Overall image quality Significantly worse image quality
Compare the EOS 60D vs the SLT A77

appearance

Sigma SD1 Sony SLT-A77
Sigma SD1 Sony SLT-A77
Sony SLT-A77

discussion

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