DPReview has posted their review of the Sony Alpha A700
DSLR. Let’s take a (quick) look at the highs and the lows of this new digital SLR, according to DPReview.
They got a comment from Sony about the surprising lack of live view on the A700 (surprising, at least, compared to all the other DSLRs coming out these days):
When we spoke to Sony about this the answer was simple; they believe that the compromises involved in current systems are satisfactory, and they won’t implement live view until they can ‘get it right’. Whether the lack of live view has any real relevance in a camera at this level remains to be seen; we doubt it.
They feel that the A700 might have too much luminance noise reduction going on at high ISO settings: there was little luminance noise, although a fair amount of chroma noise remained and a lot of the detail had been blurred away. They compared it to the Nikon D300
, which returned images with less noise, and the Canon 40D
, which had the most detail. It did perform better than the Olympus E-3
in the high ISO noise competition, however. I guess that means the A700 gets a bronze medal, with the D300
and 40D
being more or less tied, depending on how much NR you like.
Speaking of NR, you’re kind of in a bad spot with the A700, since, unlike every other DSLR that I know of, it still performs noise reduction even when you shoot RAW. Every other camera just gives you what came off of the sensor — isn’t that basically the implied definition of what a RAW image should be — and lets you do noise reduction later (Noise Ninja, etc). Apparently this is a design decision, and a side effect of doing the noise reduction on the sensor itself. Hopefully future cameras that do on-sensor NR will come up with a way to disable it for RAW shooting, if desired.
They report excellent dynamic range (better than average) and long exposure results, and they really like the optional battery grip.
They put the anti-shake feature in the “pros” section, but looking at their test results shows that it doesn’t give you as much anti-shake correction as other cameras do. Their test shows roughly 1.5 stops of improvement. Maybe I’m comparing apples to different apples by keeping in mind the 3+ stops of improvement that the Canon EF-S 18-55mm
IS lens provided, and Canon/Nikon’s claims that doing it in the lens is better really do hold up. I’ll have to look into that some more.
Interestingly, their testing reveals that the camera’s “base” ISO setting is 200, and shooting at ISO 100 makes things a little wonky. You get much better results at ISO 200 than ISO 100, no matter how unintuitive (and undocumented in the manual) that feels. They also found poor automatic white balance performance, especially under incandescent light.
In addition, the Image Data Converter SR software just doesn’t convert RAW images well; you lose detail and introduce moire artifacts:
The differences between these three are pretty obvious, and stark. The JPEG from the camera demonstrates good resolution beyond absolute resolution which would mean good representation of texture and distant detail. Adobe Camera RAW (as usual) delivers great per pixel sharpness and resolution. The biggest disappointment however is the output from Image Data Converter which produced a large amount of moire as well as blurring anything beyond 2500 LPH.
I don’t know many people who do RAW conversions with the manufacturer’s software instead of Adobe Camera Raw or other third-party tools, but with the Sony it sounds like you really don’t have a choice. Their software should have a big warning sticker telling you that you’ll get worse results using it than if you had just shot JPEG in the first place. Kind of scary.
In the end, they label it “highly recommended” and say it’s a decent camera, especially for the price:
Overall then the A700 is a good performer with good overall image quality with a nice range of features – even if on the negative side there are some quirky design decisions which may or may not affect you. Best of all though is the fact that it weighs in at the lower end of the price band for this category of DSLR, that makes it about $400 less than the Nikon D300 and $300 less than the Olympus E-3
.