Support Cameralabs by shopping at our partner stores or donating via Paypal
 






Follow my RSS feed at Camera Labs RSS Feed
 
  Latest camera reviews

Canon ELPH 340 IXUS 265
Canon G7X
Nikon P530
Canon SX520 HS
Canon G1 X Mark II
Panasonic Lumix FZ1000
Panasonic TZ60 / ZS40
Sony RX100 III review
Sony A3000 review
Canon EOS 1200D T5
Sony WX350
Nikon P600
Sony Alpha A5000
Sony Cyber-shot HX400V
Panasonic Lumix GH4
Panasonic TS5 FT5
Sony Alpha A6000
Canon SX700 HS
Canon SX600 HS
Olympus TOUGH TG2
Nikon AW1
Nikon D3300
Fujifilm XT1
Olympus STYLUS 1
Sony Cyber-shot RX10
Olympus OMD EM1
Panasonic Lumix GM1
Nikon D610
Sony Alpha A7
Nikon D5300
Canon PowerShot A2500
Sony Alpha A7r
Canon ELPH 130 IXUS 140
Nikon COOLPIX P520
Nikon COOLPIX L820
Canon PowerShot S120
Panasonic Lumix GX7
Canon SX510 HS
Canon PowerShot G16
Fujifilm X20
Panasonic FZ70 / FZ72
Canon EOS 70D
Sony RX100 II
Canon ELPH 330 IXUS 255
Panasonic Lumix GF6
Fujifilm XM1
Olympus EP5
Panasonic Lumix LF1
Panasonic TZ35 / ZS25
Olympus XZ2
Sony HX300
Panasonic Lumix G6
Sony HX50V
Fujifilm X100S
Canon SX280 HS
Canon EOS SL1 / 100D
Panasonic TZ40 / ZS30
Nikon D7100
Nikon COOLPIX A
Fujifilm X-E1
Canon EOS 6D
Nikon D5200
Panasonic Lumix GH3
Canon PowerShot S110
Panasonic Lumix G5
Sony NEX-6
Panasonic Lumix FZ200
Canon PowerShot SX50 HS
Nikon COOLPIX P7700
Olympus E-PL5
Canon EOS M
Panasonic TS20 / FT20
Canon PowerShot G15
Nikon D600
Nikon COOLPIX L810
Canon PowerShot D20
Sony RX100
Panasonic Lumix LX7
Canon SX500 IS
Fujifilm HS30 EXR
Sony HX200V
Panasonic FZ60 / FZ62
Canon 520HS / 500HS
Canon 110HS / 125HS
Nikon D800
Canon EOS T4i / 650D
Canon PowerShot A3400
Panasonic ZS15 / TZ25
Olympus E-M5
Nikon D3200
Fujifilm X-Pro1
Canon PowerShot A2300
Canon SX240 / SX260
Samsung NX200
Sony Alpha SLT-A77
Canon EOS 5D Mark III
Panasonic ZS20 / TZ30
Canon PowerShot G1 X
Sony NEX-7
Panasonic GX1
Olympus E-PM1
Nikon V1
Sony NEX-5N
Canon EOS T3 / 1100D
Canon EOS 600D / T3i
Nikon D7000
Canon EOS 60D
Canon EOS 550D / T2i
Canon EOS 7D

All camera reviews
 
 
   
 
  Best Buys: our top models
   
  Best Canon lens
Best Nikon lens
Best Sony lens
Best budget DSLR
Best mid-range DSLR
Best semi-pro DSLR
Best point and shoot
Best superzoom
Best camera accessories
   
 



Camera Labs Forum

Any questions, comments or a great tip to share? Join my Camera forum and let everyone know!
   
 
  DSLR Tips



 
Support me by shopping at Amazon!
Sony Alpha DSLR-A380 Gordon Laing, August 2009

Sony Alpha DSLR-A380 focusing, sensor and drive

The Sony Alpha DSLR-A380 employs an A-mount for lenses and is compatible with the complete range of Sony lenses and third party models designed for the Sony or Minolta AF systems, including Sony’s DT models. Like the most recent Alphas, the polished metal surface of the lens mount extends a few millimetres beyond the trademark Alpha orange ring.

 












All lenses attached to the A380 can exploit the camera’s built-in SteadyShot stabilisation, and since the A380 employs the same physically sized sensor as previous cropped-frame Alphas, all lenses effectively have their field of view reduced by 1.5 times.

The Alpha A380 is available body alone, or in one of two bundles with either the DT 18-55mm f3.5-5.6 SAM alone or this and the DT 55-200mm f4-5.6 SAM in a twin lens kit. Both lenses are new models introduced alongside the A380 and its siblings, with the DT 18-55mm SAM replacing the ageing DT 18-70mm inherited from the original Konica Minolta merger.

 
 
Support this site by shopping at Amazon


 

The new DT 18-55mm SAM looks, feels and operates much like rival 18-55mm kit lenses. As you zoom from wide to telephoto, the barrel retracts and extends again, with the physically shortest position around the 35mm focal length. There’s no manual focusing ring to speak of, so like other kit lenses, you’ll be grabbing and rotating the narrow end section. This section therefore also rotates during autofocus, which means users of polarising filters may need to readjust after focusing.

The big new feature of these latest lenses is the SAM designation, short for Smooth Autofocus Motor. This means there’s an AF motor built into the lens, which suggests future Alpha bodies may dispense with their own AF motor to save money and weight, like Nikon’s entry-level models.

Don’t expect equivalent speed and operating noise to Sony’s higher-end SSM lenses though – in terms of focusing speed and mechanical noise the DT 18-55mm SAM is pretty much the same as Canon’s EF-S 18-55mm IS. See our results and gallery pages to see how this new kit lens copes with the 14 Megapixel demands of the A380.

Sony Alpha DSLR-A380 SteadyShot Stabilisation

 
 
 

Like all Alpha DSLRs, the A380 is equipped with sensor-shift image stabilisation to combat camera-shake. This moves the entire sensor platform in two axes and is branded by Sony as SteadyShot. Like the previous generation, Sony claims the system is good for between 2.5 and 3.5 stops of compensation depending on the lens and shooting conditions, although it’s now enabled or disabled from a menu option rather than with the physical switch of earlier models.

As with all sensor-shift stabilised solutions, the major benefit is that it works with any lens you attach, new or old, wide or long, prime or zoom. The downside is that you won’t see the stabilising effect through the optical viewfinder, which can be annoying when framing at longer focal lengths. And due to the way Sony has implemented Live View on the A380, you won’t see a preview of the stabilising effect on-screen either. Like other Alphas, there are at least indicators in the viewfinder (and in Live View) which show how hard the system’s working, or when it’s gone beyond its capabilities.

To test the effectiveness of the A380’s built-in stabilisation we took a serious of photos with the 18-55mm zoomed-into an equivalent of 83mm where traditional photographic advice would recommend a shutter speed of approximately 1/80 to eliminate camera shake. Our sequence started at 1/80 and reduced by one stop each time until 1/5.

Support this site by shopping at Amazon
 

 
 
 
 
 
 

Sony Alpha DSLR-A380 with DT 18-55mm SAM: SteadyShot off / on
100% crop, 18-55mm at 55mm, 1/40, 100 ISO, IS off
 
100% crop, 18-55mm at 55mm, 1/40, 100 ISO, IS on

Under the conditions of the day, we required the recommended 1/80 shutter speed to avoid camera-shake with stabilisation disabled. With stabilisation enabled, the images were certainly sharper at slower shutter speeds, but disappointingly the only one which could be described as 100% sharp was at 1/40 – just one stop over the non-stabilised version.

In other tests we enjoyed greater success, but the average degree of compensation was at the lower-end of Sony’s quoted range: 2.5 stops. Of course this is highly dependent on the operator and the conditions of the day, but we personally find lens-based optical stabilisation to be around one stop more effective than body-based systems – but then again the major advantage of body-based systems is their stabilising effect on all lenses, including shorter primes. It’s a highly valuable ally, even if you don’t see the stabilising effect through the viewfinder.

Sony Alpha DSLR-A380 focusing

The Alpha A380 is equipped with the same 9-point AF system as its predecessor with a centre cross sensor, and like earlier Alphas, the system can be started as you look through the viewfinder; this can indeed save time, but many DSLR traditionalists will prefer to switch it off and go for a half-press of the shutter release instead. As described on the previous page though, Sony’s switched the previous line markings in the viewfinder for more conventional squares indicating each focusing point.

   

As before you have the choice of single-shot AF-S, continuous autofocus AF-C, or the default AF-A mode which automatically switches between AF-S and AF-C. Unlike the higher-end A700, there’s no AF clutch on the back of the A350, so unless you’re using a lens with full-time manual focusing capabilities, you’ll need to switch from AF to MF manually. If the lens is a SAM model like the new kit lenses, you’ll need to use the switch on the side of the lens barrel, otherwise you’ll use the switch by the lens mount.

In use with the latest kit lens, the A380’s AF performance felt similar to rival DSLRs fitted with their kit lenses. It’s certainly adequate for general use, but nothing special, and like rival models you’ll need to upgrade to a higher-end lens to enjoy quicker and quieter auto-focusing.

One interesting point worth noting though is since the normal phase-change AF system is used during Live View, you also get to use Continuous AF when shooting with the screen – this is unlike existing DSLRs, which are unable to continuously autofocus while in Live View. So in theory you could recreate the Sony ads where moving subjects are tracked when composing with the screen, although the paltry 2fps continuous shooting speed in Live View will certainly limit any serious action photography. Even switching to the optical viewfinder doesn’t improve matters significantly, with the A380 shooting at a maximum of 2.5fps – see section at the bottom of this page for full details.

If fast action shooting is important to you and you're hooked on the Sony brand, it's worth trading-up to the Alpha A500 or A550 which both offer 5fps continuous shooting, boostable to 7fps on the A550 if you're willing to sacrifice AF.

Sony Alpha DSLR-A380 metering, exposures and bracketing

   

The Sony Alpha DSLR-A380 offers the same three metering modes as its predecessor: 40-zone Multi-Segment, Centre Weighted and Spot. As before, we used Multi-Segment metering for all our sample images and found very few occasions when we’d want to apply any compensation.

The Alpha A380 offers shutter speeds from 1/4000 to 30 seconds plus a Bulb option; the fastest flash sync speed is 1/160. Like most non-pro bodies, there's no figures quoted for the longevity of the shutter block.

Exposure bracketing is available with three frames at either 1/3 or 2/3 EV apart. This is pretty basic, as while most entry-level models also don’t offer more than three frames, they generally allow steps up to 2EV apart.

Sony Alpha DSLR-A380 anti dust

Like all Alpha DSLRs to date, the A380 uses its sensor-shifting mechanism to double-up as an anti-dust system. This vibrates the sensor during power-off in an attempt to shake-free any foreign particles. The sensor filter also has an anti-dust coating.

Following our usual DSLR torture-test we left our A380 face-up without a lens, inside and outside for ten minutes each, before powering it up and down twice, then searching for dust; we can’t know how much dust entered the body during this time, nor even how much was present to start with, but we know such a process would result in dust being a problem for most models.

We then took a series of photos at every aperture setting of a plain white surface at close range with the DT 18-55mm lens zoomed-in and focused to infinity. Dust marks normally become most apparent at the smallest apertures (eg f16 and f22), but it’s also important to test at more common apertures.

Support this site by shopping at Amazon

 
 
 
 
 

Sony Alpha DSLR-A380 dust example at f22 / f8
100% crop, 18-55mm at 55mm, f22
 
100% crop, 18-55mm at 55mm, f8

At f22, a number of dust marks were very faintly visible, and we’ve shown a 100% crop of the worst offender above left. This was virtually invisible even at f22, and required an extreme Levels adjustment to properly reveal it, above right. As always, these marks became more diffuse and harder to sport at larger apertures, but even just one stop brighter at f16 they had become virtually invisible. At f11 or larger, they had essentially disappeared.

This is a great individual result for the A380, although the earlier A350 didn't perform so well in the same test. Since we understand the anti-dust system is the same on both models, we can only assume this was either a lucky result for the A380, or of course an unlucky one for the A350. As always, dust measurement is not an exact science, and all we can do is gather anecdotal evidence to build up a bigger picture. But judging on this result alone, dust marks may have been present in our A380, but certainly didn't cause any problems.

Sony Alpha DSLR-A380 sensor and processing

The Alpha A380 is equipped with the same 14.2 Megapixel CCD sensor as its predecessor, measuring 23.5x15.7mm. It generates 3:2 aspect ratio images with a maximum resolution of 4592x3056 pixels and there’s the choice of two lower resolutions at 7.7 and 3.5 Megapixels respectively. A cropped 16:9 aspect ratio is available in 12, 6.5 and 2.9 Megapixels.

   

Images can be saved with Standard or Fine JPEG compression, or recorded as a RAW file either by itself or accompanied with a JPEG.

Best quality Large Fine JPEGs typically measure between 3.8 and 5.8MB each, while RAW files typically measure 15MB each. There’s no dedicated button for the quality settings, but it’s easy to adjust them using the main menu as they’re the first items on the first page.

As before, the sensitivity runs between 100 and 3200 ISO, with High ISO noise reduction applied by default at 1600 and 3200 ISO, although you can disable this if desired. Long exposure noise reduction is also enabled by default, applying to exposures of one second or longer, although again this can be disabled if preferred; you can see how the A380 performs across its sensitivity range in our High ISO Noise results.

   

Colour, contrast and sharpness are applied using a number of Creative Styles, chosen from the Fn menu system.

Along with the default Standard setting, you can choose from Vivid, Portrait, Landscape, Night View, Sunset and Black and White; in the colour modes you can adjust contrast, saturation and sharpness in a range of +/-3 steps, but there’s still no filters for Black and White.

Like other Alphas, the A380 is equipped with Sony’s D-Range Optimiser feature which can adjust the tonal range as you record the image. As before, there’s three choices: D-R Off, D-R Standard, and D-R+. We used the default D-R Standard for all our test shots, although have presented two shots taken with it disabled and at the maximum D-R+ setting for comparison below.

Sony Alpha DSLR-A380 Dynamic Range Optimizer: Off / D-R+
 
     
DRO: Off, 100 ISO, f8, 1 sec
 
DRO: D-R+,100 ISO, f8, 1 sec

The effect was subtle to say the least, and even examining the histograms reveals very little benefit for this particular composition; indeed rather than retrieving highlight detail, the windows are actually more washed-out on the D-R+ version. You may have more success with DRO on the A380, but in our tests it offered little which couldn't be achieved with careful exposure and tweaking in software later.

There’s no evidence that the A380 corrects for coloured fringing or vignetting on in-camera JPEGs, but we're checking with Sony.

Sony Alpha DSLR-A380 drive modes and remote control

The Sony Alpha A380 offers one Continuous Shooting mode rated at 2.5fps with the optical viewfinder or at 2fps in Live View; Sony quotes a maximum buffer of three frames in RAW+JPEG mode, six in plain RAW mode, and no limit for recording JPEGs.

 

To put this to the test we fitted our A380 with a high-speed Lexar Professional 8GB SDHC card. We fired-off 39 Fine JPEGs (100 ISO / DRO Standard / AF-S) in 20 seconds using the optical viewfinder, corresponding to a rate of 1.95fps. Switching to Live View saw this fall to 34 frames in the same 20 seconds, corresponding to a rate of 1.7fps. In RAW mode using the optical viewfinder we fired-off ten frames in six seconds before the A380 stalled - this works out at 1.7fps. Shooting RAW in Live View we measured the same speed of 1.7fps.

So in all our continuous shooting tests, the A380 came up slower than quoted, and even Sony's official figures aren't particularly impressive. Continuous shooting is certainly one of the downsides of the A380 - it really feels like it's chugging along and isn't particularly suited to capturing action sequences, despite how the consumer Alphas are often advertised. In the meantime, its rivals have taken a decisive lead in this respect, with Canon’s EOS 500D / T1i and Olympus E-620 delivering around 3.2fps in practice, while Nikon’s D5000 speeds along at its quoted 4fps. These are better choices if you’re into action photography. Or better still, go for one of Sony’s mid-range A500 or A550 Alpha DSLRs which deliver 5fps, boostable on the A550 to 7fps if you’re willing to sacrifice auto-focus.

In terms of other drive modes, there's the choice of two or 10 second self-timers, but still no mirror-lockup facility. The drive menu is also where you’ll find bracketing options, although as described above, they’re fairly basic with the choice of shooting three frames at either 0.3 or 0.7 EV apart. The White Balance bracketing of the earlier models is also now absent.


 

If you found this review useful, please support us by shopping below!



All words, images, videos and layout, copyright 2005-2014 Gordon Laing. May not be used without permission.

/ How we test / Best Cameras / Advertising / Camera reviews / Supporting Camera Labs