photo credit: lrargerich

This is some sort of silly question, but when people look at ISO sensitivity, we tend to be impressed by the increasingly higher values (which mean that you can take pictures without much light and without adding a flash). But no manufacturer seems not willing to offer us the low ISO values of sensitivity.

Of course, it’s always possible to buy a ND filter (Neutral Density or grey filter). But then, why not integrate this directly in-camera? After all, it’s only a matter of using computer algorithms to help digital sensors not to collect all of the possible light, a thing like taking several pictures in a row but with a very high speed sequence.

The advantage would be to allow the sort of images that many a landscape photographer likes nowadays: You screw a dark ND filter, shoot at very slow speed and get the water movement as in the image here.

So, who’s going to bring that technical innovation to a DSLR camera?

Eiffel Tower, by night – Copyright (C) Yves Roumazeilles

Now, I would like to underline the quality of a full series of posts, published by Patrick Moll on Alpha Numérique, and dedicated to comparing as precisely as possible the various offers now on the market to develop and improve as much as possible the pictures that -sometimes- we must shoot using very high levels of ISO sensitivity (with the troubling levels of digital noise that come with big ISO levels).

The list of the software programs taken into account is quite respectable:

• Image Data Converter 3
• Lightroom 3 / Camera Raw 6
• DxO Optics Pro 6
• Aperture 3
• Bibble Pro 5
• Capture One Pro 5
• ACDSee Pro 3
• Silkypix 4
• Lightzone 3
• Raw Developer 1 (dcraw)

Not bad, eh!

Even if the comparisons done here are not only for Sony photo cameras, Patrick Moll applied its tests to a quite appreciable list of cameras too:

• A100
• A550
• A700
• A900
• A330 (not ready yet when I published this post)

Even if you are not reading French, I highly recommend checking these (most of the posts are made of image comparisons using the yellow buttons to select the software program results you want to see). Even if you are equipped with Pentax, Canon or Nikon gear, the lessons you will draw from this are applicable on all the photo camera brands, concerning strengths and weaknesses of each of these software tools.

To understand the review process and the methodology, I would recommend the reading of (here, all in French):

• Introduction
• Réduction du bruit et accentuation

With the tests, body by body, you will immediately recognize the excellent results of Lightroom 3/Camera Raw 6 (these two Adobe software programs share a single common RAW file management core). Just behind, comes DxO Optics Pro 6 which is a bit more violent (or more accentuation prone) and the (not famous enough) Bibble Pro 5.

From this point, you will always be able to get the best from the photos you were forced into shooting in poor lighting conditions which required big ISO figures.

Since 2009, we can consider that the race for more pixels is over. All camera manufacturers decided more or less to go easy on resolution: Over 12-15 MP, you can easily print an A4 or Letter-size print in top quality. Most photographers will never need more. So, why go over 20 MP?

Most manufacturers followed the lead of Olympus and Nikon trying to enlarge the pixels in order to ensure they collect more light and this leads to a higher level of sensitivity as measured by the ISO standard. This is good, because this means that our pictures are going to be better and better, not only uselessly finer and finer. Moreover, maximum ISO sensitivity becomes a relatively good proxy for image quality.

However, there is a slippery slope here. It has already been observed in some Point-and-Shoot compact photo cameras: A manufacturer may be tempted to push a maximum ISO level to ridiculously stratospheric altitudes. It’s not only because you P&S camera can do ISO 1600, that its pictures are still usable (noise cancellation algorithms may be so energetic that most of the details are blurred in the process).

Usually, in the D-SLR market we do not see this happening too often, but there is a risk. With Canon and Nikon leading the race with (pro) cameras over ISO 100,000, we already see figures that are amazingly high and images that are already quite bad (for a pro).

Don’t get me wrong! I’m quite happy to see that technology will soon be allowing us to shoot pictures in darkness without using a flash. But those two very serious camera manufacturers have obviously been racing to reach an ISO landmark. Some others, maybe less able, will reach it not only with barely usable photos, but with really unacceptable pictures. Then, it would become a fruitless race again, with figures creeping into the fact sheets and a real-life comparison will be ever more critical.

For me, the Canon EOS 1D Mk IV and Nikon D3s are useful because they produce absolutely great photos at ISO 32,800, not just because they can collect a barely informational document at ISO 102,400. Let’s be attentive with the present products from Canon and Nikon and the future cameras from all the photo camera manufacturers.

We should still be photographers and not just number-seeking blind consumers. I hope we are.