Updated (April, 2014): Compare the Sigma SD1 vs Sony SLT A77 II

Sony SLT A77

Sony SLT-A77

vs

Sigma SD1

Sigma SD1

     

Reasons to buy the Sony SLT A77

Large viewfinder
Viewfinder size
0.72x
Image stabilization
Image stabilization
Sensor shift
Has live view
Live view
Preview your photos
Weather sealed
Weather sealed
Shoot in extreme weather
 

Reasons to buy the Sigma SD1

Weather sealed
Weather sealed
Shoot in extreme weather
Viewfinder
Great viewfinder
Pentaprism
Badge
Phase detection autofocus
fast and accurate
Fastest shutter speed
Fast shutter speed
1/8000 of a second
 

differences

Advantages of the Sigma SD1

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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

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Movie format
Shoots movies
1080p @ 60fps vs None
Help
Shoots Full HD (1080p) video as well as still pictures
Live view
Has live view
Yes vs No
Help
Preview your photos on the camera's screen before taking them
3D
Takes 3D photos
Yes vs No
Help
Combines multiple photos into a 3D image
Startup delay
Much less startup delay
3100 ms vs 4500 ms
Help
More than 30% less delay when turning on
Autofocus
Video autofocus
Phase detection vs None
Help
Automatically focuses shooting video
Screen resolution
Much higher resolution screen
921k dots vs 460k dots
Help
More than 2x higher resolution screen
Continuous shooting
Shoots much faster
12 fps vs 5 fps
Help
Around 2.5x faster continuous shooting
HDR
Has in-camera HDR
Yes vs No
Help
Combines multiple exposures to capture high dynamic range
Shutter lag
Much less shutter lag
124 ms vs 382 ms
Help
3.1x less delay when taking photos
Image stabilization
Image stabilization
Sensor shift vs None
Help
Helps eliminate blur caused by small camera movements
Panorama
Can create panoramas in-camera
Yes vs No
Help
Stitches together multiple photos for a wide perspective
Viewfinder size
Significantly larger viewfinder
0.72x vs 0.62x
Help
More than 30% larger viewfinder
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
24 MP vs 15.4 MP
Help
Capture around 60% more detail in your photos
Lens availability
Significantly more lenses available
123 lenses vs 60 lenses
Help
More than 2x more lenses available
GPS
Has a GPS
Yes vs No
Help
Automatically geotags your photos when traveling
Cross type focus points
More cross-type focus points
11 vs 2
Help
Grab focus in difficult situations
Light sensitivity
Better maximum light sensitivity
16,000 ISO vs 6,400 ISO
Help
The SLT A77's maximum light sensitivity is 1.3 f-stops better
Viewfinder coverage
Better viewfinder coverage
100% vs 98%
Help
Almost the same
Focus points
More focus points
19 vs 11
Help
Set focus accurately within the frame
Size
Smaller
143x104x81 mm vs 146x113x80 mm
Help
Around 10% smaller
Lowest price
Slightly cheaper
$998.00 vs $1,199.05
Help
The best price we've seen is $201 cheaper (around 20% 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
Weather sealed Weather sealed Help
Shoot in extreme weather
Fastest shutter speed Fast max shutter speeds Help
1/8000 of a second
Common Weaknesses
Startup delay Significant startup delay Help
SD1:4500 ms
SLT A77:3100 ms
Thickness Quite thick Help
SD1:3.1"
SLT A77:3.2"
Storage slots Fewer storage slots Help
1
Built-in focus motor No focus motor Help
Won't autofocus with all lenses
Lens availability Few lenses available Help
SD1:60 lenses
SLT A77:123 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

$897 - $1,097 body only

$1,197 with 18-140mm lens

Low light performance Is slightly less noisy at high ISO
Screen size Has a significantly larger screen
Shutter lag Has significantly more shutter lag
Canon EOS 70D

Canon EOS 70D

Pro DSLR

$999 body only

$1,129 - $1,149 with 18-55mm lens

Screen resolution Has a slightly higher resolution screen
Touch screen Has a touch screen
Color depth Has slightly less color depth
Dynamic range Has significantly narrower dynamic range
Nikon D5300

Nikon D5300

Entry-level DSLR

$697 body only

$599 - $797 with 18-55mm lens

Low light performance Is slightly less noisy at high ISO
Screen size Has a significantly larger screen
Fastest shutter speed Has a slower max shutter speed
Viewfinder coverage Significantly less viewfinder coverage
Canon EOS 7D

Canon EOS 7D

Pro DSLR

$999 - $1,499 body only

$1,099 - $1,978 with 28-135mm lens

Startup delay Has much less startup delay
Lens availability Significantly more lenses available
Weight Is slightly heavier
Color depth Has significantly less color depth
Nikon D7000

Nikon D7000

Entry-level DSLR

$625 body only

$679 - $1,025 with 18-55mm lens

Startup delay Has much less startup delay
Lens availability Much more lenses available
Shutter lag Has significantly more shutter lag
Canon EOS 5D Mark II

Canon EOS 5D Mark II

Pro DSLR

$2,495 body only

Low light performance Is slightly less noisy at high ISO
Startup delay Has much less startup delay
Built-in flash Doesn't have a built-in flash
Lowest price Is slightly more expensive
Canon Rebel T5i

Canon Rebel T5i

Entry-level DSLR

$599 - $750 body only

$597 - $700 with 18-55mm lens

Screen resolution Has a slightly higher resolution screen
Touch screen Has a touch screen
Fastest shutter speed Has a slower max shutter speed
Viewfinder coverage Significantly less viewfinder coverage

Sigma SD1 Competitors

Advantages

Disadvantages

Nikon D800

Nikon D800

Pro DSLR

$4,210 with 28-300mm lens

Movie format Shoots movies
Startup delay Much less startup delay
Continuous shooting Shoots slower
Weight Significantly heavier
Nikon D5100

Nikon D5100

Entry-level DSLR

$360 - $385 body only

$429 - $499 with 18-55mm lens

Movie format Shoots movies
Startup delay Much less startup delay
Weather sealed No weather sealing
Viewfinder size Significantly smaller viewfinder
Sigma SD15

Sigma SD15

Entry-level DSLR

$799 - $838 body only

Size Slightly smaller
Lowest price Cheaper
Screen resolution Significantly lower resolution screen
True resolution Much lower true resolution
Nikon D4

Nikon D4

Pro DSLR

$4,514 body only

Movie format Shoots movies
Startup delay Much less startup delay
Size Much larger
Weight Much heavier

Sony SLT-A77 Competitors

Advantages

Disadvantages

Sony SLT A77 II

Sony SLT A77 II

Pro DSLR

$898 body only

$1,498 - $1,795 with 16-50mm lens

Focus points Many more focus points
Screen resolution Significantly higher resolution screen
3D Doesn't take 3D photos
GPS No built-in GPS
Sony SLT-A65

Sony SLT A65

Entry-level DSLR

$600 with 18-55mm lens

Startup delay Less startup delay
Size Smaller
Weather sealed No weather sealing
Overall image quality Worse image quality
Sony SLT-A99

Sony SLT-A99

Pro DSLR

$1,998 body only

$2,596 with 28-75mm lens

Startup delay Much less startup delay
Low light performance Lower noise at high ISO
3D Doesn't take 3D photos
Continuous shooting Shoots much slower

appearance

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

discussion

Sigma SD1
SD1
Sigma

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Sony SLT-A77
SLT A77
Sony

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