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

Sony SLT A77 vs Sigma SD1

Sony SLT-A77
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
Rapid fire
Continuous shooting
12 fps
 

Reasons to buy the Sigma SD1

Viewfinder
Great viewfinder
Pentaprism
Fastest shutter speed
Fast shutter speed
1/8000 of a second
Badge
Phase detection autofocus
fast and accurate

galleries

Explore our gallery of 2 sample photos taken by the Sigma SD1. Explore our gallery of 50 sample photos taken by the Sony SLT-A77.

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
Screen resolution
Much higher resolution screen
921k dots vs 460k dots
Help
More than 2x higher resolution screen
Autofocus
Video autofocus
Phase detection vs None
Help
Automatically focuses shooting video
Continuous shooting
Shoots much faster
12 fps vs 5 fps
Help
Around 2.5x faster continuous shooting
Startup delay
Much less startup delay
3100 ms vs 4500 ms
Help
More than 30% less delay when turning on
Shutter lag
Much less shutter lag
124 ms vs 382 ms
Help
3.1x less delay when taking photos
HDR
Has in-camera HDR
Yes vs No
Help
Combines multiple exposures to capture high dynamic range
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
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
True resolution
Higher true resolution
24 MP vs 15.4 MP
Help
Capture around 60% more detail in your photos
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
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
SD14500 ms
SLT A773100 ms
Thickness Quite thick Help
SD13.1"
SLT A773.2"
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
SD160 lenses
SLT A77123 lenses
Focus points Few focus points Help
SD111
SLT A7719
Touch screen No touchscreens Help
More buttons
Screen size Very small screens Help
3.0"

dxomark

DXOMark

competitors

Shared Competitors

Advantages

Disadvantages

Nikon D7100

Nikon D7100

Entry-level DSLR

$997 - $1,197 body only

$1,170 - $1,297 with 18-140mm 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
Canon EOS 7D

Canon EOS 7D

Pro DSLR

$749 - $857 body only

$849 - $1,562 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
Sony Alpha A6000

Sony Alpha A6000

Mirrorless interchangeable-lens

$448 - $548 body only

$598 - $698 with 16-50mm lens

Low light performance Is slightly less noisy at high ISO
Image stabilization Has better image stabilization
Fastest shutter speed Has a slower max shutter speed
Lens availability Slightly fewer lenses available
Nikon D5300

Nikon D5300

Entry-level DSLR

$647 - $697 body only

$579 - $797 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
Viewfinder coverage Significantly less viewfinder coverage
Nikon D7000

Nikon D7000

Entry-level DSLR

$748 with 18-55mm lens

Startup delay Has much less startup delay
Lens availability Much more lenses available
Shutter lag Has significantly more shutter lag
Sony A7

Sony A7

Mirrorless interchangeable-lens

$998 - $1,698 body only

$1,298 - $1,498 with 28-70mm lens

Low light performance Is significantly less noisy at high ISO
Overall image quality Has slightly better image quality
Built-in flash Doesn't have a built-in flash
Shutter lag Has significantly more shutter lag
Canon EOS 5D Mark II

Canon EOS 5D Mark II

Pro DSLR

$2,095 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

Sigma SD1 Competitors

Advantages

Disadvantages

Nikon D800

Nikon D800

Pro DSLR

$2,799 body only

Movie format Shoots movies
Startup delay Much less startup delay
Continuous shooting Shoots slower
Weight Significantly heavier
Nikon D610

Nikon D610

Pro DSLR

$1,325 - $1,497 body only

$1,699 - $1,997 with 24-85mm lens

Movie format Shoots movies
Startup delay Much less startup delay
Fastest shutter speed Much slower max shutter speed
Thickness Thicker

Sony SLT-A77 Competitors

Advantages

Disadvantages

Sony SLT A77 II

Sony SLT A77 II

Pro DSLR

$898 - $998 body only

$1,498 - $1,598 with 16-50mm lens

Screen resolution Significantly higher resolution screen
Focus points Many more focus points
3D Doesn't take 3D photos
GPS No built-in GPS
Canon EOS 70D

Canon EOS 70D

Pro DSLR

$999 body only

$1,215 - $1,349 with 18-135mm lens

Startup delay Much less startup delay
Viewfinder Has an optical viewfinder
3D Doesn't take 3D photos
Dynamic range Less dynamic range
Sony SLT-A99

Sony SLT-A99

Pro DSLR

$1,998 body only

$2,896 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
Sony SLT-A65

Sony SLT A65

Entry-level DSLR

$588 with 18-55mm lens

Startup delay Less startup delay
Size Smaller
Weather sealed No weather sealing
Overall image quality Worse image quality

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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