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Digital Cameras - Sony Cyber-shot DSC-T33 Test Images

 

I've begun including links in our reviews to a Thumbnail index page for the test shots. The data on this page includes a host of information on the images, including shutter speed, ISO setting, compression setting, etc. Rather than clutter the page below with all that detail, we're posting the thumbnail index so only those interested in the information need wade through it!

 

"Sunlit" Portrait:
(This is my new "Outdoor" Portrait test - read more about it here.)

High resolution and pretty good detail, though very warm color and high contrast.

 

  • Exposure compensation: +0.7 EV, about average.
  • Contrast/Tone: High, strong highlights and very dark shadows, with dark midtones.
  • White Balance: Auto and Daylight settings nearly identical, both quite warm.
  • Color accuracy: Mediocre, dark blues with purplish tints, dark greens and yellows. Very warm overall color cast.
  • Skin tones: Warm and orange.
  • Resolution/sharpness: Pretty good, though details are quite soft in Marti's face (possibly due to focusing over any noise reduction).
  • Shadow detail: Pretty good, moderate noise

To view the entire exposure series from zero to +1.3 EV, see files T33OUTAP0.HTM through T33OUTAP4.HTM on the thumbnail index page.

Contrast Series:
Contrast Series
Low
Normal
High

Saturation Series:
Saturation Series
Low
Normal
High




 

Closer Portrait:

Stronger resolution and detail, but again, high contrast.

  • Exposure compensation: +0.3 EV, less than average.
  • Exposure/Tone: Contrast again high, resulting in harsh skin tones. Very hot highlights, though fair midtones.
  • Detail: Stronger detail and increased resolution, though some softening from lens distortion and noise reduction.
  • Distortion: Strong corner softness in the top corners, but 3x zoom lens prevents any strong geometric distortion of Marti's features.

To view the entire exposure series from -0.3 to +1.0 EV, see files T33FACAM1.HTM through T33FACAP3.HTM on the thumbnail index page.



 

Indoor Portrait, Flash:
Normal Flash
High Intensity
Slow-Sync Flash
High Intensity

Slight underexposure, and strong warm color cast.

  • Exposure: Slightly dim at the High intensity setting, and dark at the normal setting as well. Slow-Sync mode is slightly brighter, but still a bit dim, even at High intensity.
  • Flash balance with room lighting?: Mediocre, noticeable warm cast in normal mode, very strong cast in Slow-Sync mode.
  • Color: Red skin tones, dark colors in bouquet.

 

To view the entire exposure series at the High, Normal, and Low intensity settings in the normal flash mode, see files T33INFH.HTM, T33INFM.HTM, and T33INFL.HTM on the thumbnail index page.

To view the same exposure series in the Slow-Sync flash mode, see files T33INFSCH.HTM, T33INFSCM.HTM, and T33INFSCL.HTM on the thumbnail index page.


 

Indoor Portrait, No Flash:
Auto White Balance
Incandescent White Balance

Warm color balance with both white balance settings tested, though average exposure compensation required.

  • Exposure: +1.0 EV, about average.
  • White Balance: Incandescent best overall, though still warm. Auto setting much warmer.
  • Color: Pink/orange skin tones, blue flowers dark and purple, warm greens.

 

To view the entire exposure series from zero to +1.7 EV, see files T333INTP0.HTM through T33INTP5.HTM on the thumbnail index page.

ISO Series:
The T33 produces moderate noise even at its ISO 100 setting, though details are softer overall. At ISO 200, noise increases, but details actually sharpen slightly. ISO 400 produces high image noise, with a very pronounced pattern.

ISO Series
ISO 100
ISO 200
ISO 400



 

House Shot:
Auto White Balance
Daylight White Balance

Nearly accurate color, with high resolution. Strong blurring in the right corners though.

  • Sharpness/Detail: Pretty good overall.
  • Sharpness in Corners: Strong blurring in the right corners, slight blurring on the left side.
  • Color: Auto white balance setting most accurate, though white values have slight magenta tint. Daylight setting is warm.
  • Detail lost to anti-noise processing?: Moderately high, noticeable in the brick patterns.





 

Far-Field Test

High resolution and a lot of fine detail, though weak definition. High contrast limits the dynamic range, and strong blurring in the right corners of the frame.

This image is shot at infinity to test far-field lens performance, and to present a near-infinite range of detail to the camera. NOTE that this image cannot be directly compared to the other "house" shot, which is a poster, shot in the studio.

  • Sharpness/Detail: A lot of visible fine detail, though less definition than with most 5.0-megapixel digital cameras.
  • Sharpness in Corners: Strong blurring in the right corners of the frame.
  • Color: Good overall color, though reds are slightly flat.
  • Dynamic Range: Limited, especially on the highlight end.
  • Detail lost to anti-noise processing?: A fair amount, in the brick patterns.

Resolution Series:

Wide Angle "Fine"
JPEG
"Normal"
JPEG
2,592 x 1,944
T33FAR2592F
T33FAR2592N
2,048 x 1,536
T33FAR2048
-
1,280 x 960
T33FAR1280
-
640 x 480
T33FAR0640
-


ISO Series:

ISO Series
ISO 100
ISO 200
ISO 400

Sharpness Series:

Sharpness Series
Soft
Normal
Hard

Contrast Series:

Contrast Series
Low
Normal
High

Saturation Series:

Saturation Series
Low
Normal
High

Color Series:

Color Series
Black & White
Sepia


 

Lens Zoom Range

A good 3x zoom range.

The DSC-T33's focal length range of 38-114mm equivalents is typical of most point & shoot digital cameras. It corresponds to a moderate wide angle to a modest telephoto.

Wide Angle
3x Telephoto
Digital Telephoto



 

Musicians Poster
Auto White Balance
Daylight White Balance

Slightly warm color, but still good results. High resolution and strong detail, though high noise.

  • White Balance: Auto setting slightly cool, though Daylight setting is warm. Skin tones best with Daylight setting.
  • Color: Overall color warm and reddish, with purple tints in blue background and robe, but good skin tones.
  • Sharpness/Detail: Good detail and resolution, though a bit of noise.



 

Macro Shot
Standard Macro Shot
Macro with Flash

An average macro area with good detail, moderate flash performance.

  • Minimum Macro Area: 2.67 x 2.00 inches (68 x 51 millimeters), about average.
  • Softness in corners?: Some, but actually less than average. (Most cameras get fairly soft corners in macro mode.)
  • Flash performance in macro mode?: Throttles down a little too much, with strong falloff in the corners.





 

"Davebox" Test Target
Auto White Balance
Daylight White Balance

Good overall exposure and color, though slightly warm.

  • White balance: Auto setting most accurate, though a little warm and yellow. Daylight setting has much stronger warm cast.
  • Color Accuracy: Pretty good, despite warmth. Bright red and blue blocks slightly "hot," but overall saturation is pretty good.
  • Shadow detail and noise: Limited detail in the briquettes, moderate noise.



The results in the tests below mirror those seen above in other test shots. The test series are repeated here without further comment, for the benefit of our more quantitatively-oriented readers.


ISO Series:

ISO Series
ISO 100
ISO 200
ISO 400


Contrast Series:

Contrast Series
Low
Normal
High


Saturation Series:
Saturation Series
Low
Normal
High

Saturation Series:
Saturation Series
Black & White
Sepia

 

Low-Light Tests

Poor low-light performance, barely sensitive enough for average city street lighting (about one foot-candle).

  • Exposure limit: One foot-candle at ISOs 200 and 400, and in Night mode. (About as bright as typical city street lighting at night.) At ISO 100, images were quite dim even at one foot-candle.
  • Autofocus Limit: A bit below 1/8 foot-candle unassisted, and to less than 1/16 foot-candle with AF assist. (About 1/8 to 1/16 the brightness of typical city street lighting.)
  • White Balance: Strong pink cast.
  • Noise Levels: Moderate to high, even at ISO 100.
  • Detail loss to anti-noise processing?: A fair amount, even at one foot-candle.
  • General Notes:

(Note: If you'd like to use a light meter to check light levels for subjects you might be interested in shooting, a light level of one foot-candle corresponds to a normal exposure of two seconds at f/2.8 and ISO 100.)

  1 fc
11 lux
1/2 fc
5.5 lux
1/4 fc
2.7 lux
1/8 fc
1.3 lux
1/16 fc
0.67 lux
ISO
100
Click to see T33LL1003.JPG
1 sec
f3.5
Click to see T33LL1004.JPG
1 sec
f3.5
Click to see T33LL1005.JPG
1 sec
f3.5
Click to see T33LL1006.JPG
1 sec
f3.5
Click to see T33LL1007.JPG
1 sec
f3.5
ISO
200
Click to see T33LL2003.JPG
1 sec
f3.5
Click to see T33LL2004.JPG
1 sec
f3.5
Click to see T33LL2005.JPG
1 sec
f3.5
Click to see T33LL2006.JPG
1 sec
f3.5
Click to see T33LL2007.JPG
1 sec
f3.5
ISO
400
Click to see T33LL4003.JPG
1/1 sec
f3.5
Click to see T33LL4004.JPG
1 sec
f3.5
Click to see T33LL4005.JPG
1 sec
f3.5
Click to see T33LL4006.JPG
1 sec
f3.5
Click to see T33LL4007.JPG
1 sec
f3.5
ISO
100
Click to see T33LLN03.JPG
2 sec
f3.5
Click to see T33LLN04.JPG
2 sec
f3.5
Click to see T33LLN05.JPG
2 sec
f3.5
Click to see T33LLN06.JPG
2 sec
f3.5
Click to see T33LLN07.JPG
2 sec
f3.5



 

Flash Range Test

Quite dim at eight feet, with decreasing intensity from there.

  • Flash range at telephoto lens setting: Less than eight feet.
8 ft 9 ft 10 ft 11 ft 12 ft 13 ft 14 ft
Click to see T33FL08.JPG
1/50 sec
f4.4
ISO 100
Click to see T33FL09.JPG
1/50 sec
f4.4
ISO 100
Click to see T33FL10.JPG
1/50 sec
f4.4
ISO 100
Click to see T33FL11.JPG
1/50 sec
f4.4
ISO 100
Click to see T33FL12.JPG
1/50 sec
f4.4
ISO 100
Click to see T33FL13.JPG
1/50 sec
f4.4
ISO 100
Click to see T33FL14.JPG
1/50 sec
f4.4
ISO 100



 

ISO-12233 (WG-18) Resolution Test

Good resolution, 1,200 lines of "strong detail." Very high barrel distortion at wide angle, moderately high distortion at telephoto. Low chromatic aberration, particularly at telephoto, but blurring in the corners.

 

  • Resolution: 1,200 lines both vertically and horizontally.
  • Artifacts begin at: ~1,000 lines.
  • Extinction point: ~1,650 lines.

  • Barrel/Pincushion distortion: 1.01 percent barrel at wide angle, 0.6 percent pincushion at telephoto.
  • Chromatic Aberration: Low at wide angle, very low at telephoto.
  • Corner Sharpness: Moderate to strong blurring in the corners, depending on the zoom setting (on the left at telephoto, on the right at wide angle).



Resolution Series, medium focal length
Wide Angle "Fine"
JPEG
"Normal"
JPEG
2,592 x 1,944
T33RES2592F
T33RES2592N
2,048 x 1,536
T33RES2048
-
1,280 x 960
T33RES1280
-
640 x 480
T33RES0640
-


 

Resolution Test, Zoom Series
2,592 x 1,944
(Fine,
Wide Angle)
T33RESW
2,592 x 1,944
(Fine,
Telephoto)
T33REST


Sharpness Series:

Sharpness Series
Soft
Normal
Hard

 

Viewfinder Accuracy/Flash Uniformity

An accurate LCD viewfinder. Strong flash falloff at wide angle and some at telephoto as well.

  • Optical Viewfinder Accuracy: n/a, LCD viewfinder only
  • LCD Viewfinder Accuracy: Very good, close to 100 percent frame accuracy at wide angle and telephoto. (Actually, a little "loose," as the measurement lines were just out of frame.)
  • Flash Uniformity: Strong falloff at wide angle, and a moderate amount at telephoto as well.



T33 Review
T33 Test Images
T33 Specifications
T33 "Picky Details"
Up to Imaging Resource digital cameras area

 

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