Olympus E-510 Camera Review at wrotniak.net
EVOLT E-510A site called wrotniak.net has posted a very comprehensive Olympus E-510 review. Keep in mind that this isn’t a general camera review site, this is someone’s personal web site who has a strong commitment to Olympus cameras, so I’d recommend reading the review with that potential bias in mind.
He posts some very impressive results when doing tests of the Olympus image stabilization system, estimating that it was able to give him roughly 2 to 3 EV of assistance, which is very significant:
I’ve run an informal test…consisting of 120 frames shot in both modes and then analyzed. The experiment was carefully designed, and the shutter speed used was 1/15 s at the focal length of 150 mm (corresponding to 300 mm on a 35-mm frame camera). At this length, the generally recognized “safe” handheld speed is 1/300 s, so I was more than 4 EV (or a factor of 20x) below that.
The results were quite dramatic: image stabilization increased the share of clearly “good” frames from 2 to 32 out of sixty, and the fraction of obviously “bad” ones dropped from 47 to zero. This leaves no doubt: image stabilization really works.
This does not answer the most frequently asked (if not the best-phrased) question: by how much does the IS lower the safe handheld speed? While I’ve seen this one answered in a number of sources, I do not trust a single one of them, without being able to verify the testing method used and the statistical interpretation of results. I have already designed a proper experiment, but this will take shooting and analyzing at least 500 frames, obviously not a one-hour task.
For the time being you’ll have to accept my guesstimate of a 2 EV or, maybe, 3 EV gain, i.e., a factor of 4x to 8x in terms of shutter speeds.
That really makes me drool over the thought of having a good in-camera image stabilization system. I can get great low-light results with a nice fast lens (e.g., f/1.8) and moderate ISO settings, but another 2 EV would make a big difference in the results. I’d be able to get away with lower ISO settings for lower-noise low-light shots, and be able to shoot in even lower light conditions. I wonder if Canon and Nikon would ever consider doing in-camera image stabilization in addition to their lens-based IS; I’m guessing they wouldn’t play well together, but the in-camera could kick in when using non-IS lenses. Cameras like the E-510 are in the same price range as cameras like the D80 and Digital Rebel XTi, so it doesn’t seem like it would be prohibitively expensive for them to offer it as well.
Anyway, back to this review. This reviewer echoes something I’ve seen in other E-510 reviews, namely that the noise filtering should be turned off or set fairly low, because it’s too aggressive by default. This review gives more fine-grained advice with recommended settings at different ISO values:
Only after some extensive experimentation I realized how much is the image sharpness affected by noise filter setting. In this context I find the default Standard setting excessive at any ISO; my preference is Off for ISO 100 and 200, maybe even ISO 400, and Low above that… [T]his, unfortunately means that after changing ISO I have to dig into the menu system to adjust the noise filter — a cumbersome process.
One interesting lens feature that I hadn’t seen mentioned before is that a Four Thirds lens will communicate its vignetting characteristics to the camera, which can then correct for vignetting when saving the image. This is obviously something that would have to be done in your RAW importer if you shoot RAW (or, as Olympus calls it, ORF (Olympus Raw Format)).
There’s reference to the discussion over whether the E-510 has a slightly reduced dynamic range:
Some reports indicate a slightly narrower dynamic range in the E-510, compared to the competing models and to the E-500. I cannot say much on this, having done any actual measurements, but some of my samples shot in bright, contrasty sunlight hint that this is probably true. This is not much of a problem, as the difference, if any, does not seem significant. Any camera needs a proper exposure compensation to be applied to protect the highlights; maybe with this one I’ll have to watch it more closely. So far I haven’t lost any frames because of that. Lowering the in-camera contrast setting will help: while it does not widen the dynamic range per se, it expands its usable central part.
Overall, he reports very good image quality:
All in all, the image quality delivered by this camera is hard to beat — certainly not in this price range, and possibly much higher. I say “possibly”, because to make a stronger statement I would have, again, to use all cameras compared, and my experience is limited, with a few exceptions, to entry-level models from other makers.
I’d strongly recommend checking out the full review, since it’s extremely extensive — most likely the most comprehensive E-510 review I’ve seen so far. There are also a large number of sample images with different lenses and settings that are very educational. A highly recommended review.