#photog lesson of the day: why your Nikon RAW files may look underexposed in Lightroom or Aperture

I’m using Aperture – and sometimes Lightroom – to work on the RAW files I shoot with my Nikon D300. When I open an image for the first time, the preview will show me the JPG thumbnail in the RAW file first and then show the RAW file as interpreted by Aperture, which is usually a lot flatter.

It also seemed to be quite underexposed a lot of the time. I didn’t think much of it because I thought it was just the difference to the D90 I used before, which is said to have a tendency to overexpose.

Today I found the real reason: I had switched on Nikon’s built-in Active D-Lighting functionality which claims to “comes to your rescue in high-contrast situations when previously you’ve been forced to choose between sacrificing shadows or highlights. By automatically regulating the dynamic range of a scene, such as clouds, it allows you to depict shadow details while preserving highlights. In this way, both shadowy and bright sections are more pleasantly detailed and exposed, to achieve the desired contrast.”.

Well, it seems this comes at a price:

“Active D-Lighting underexposes the image to preserve highlights, therefore damaging shadow detail and increasing noise overall. It’s a great thing if you’re shooting for print and need quick results, otherwise it’s better to just leave it off and do your own post-processing as needed.”


“If you shoot raw and use software that is not made by Nikon, you must turn off Active D Lighting. Non-Nikon software does not interpret ADL information, and all you get is an underexposed shot.
Personally I never turn it on. It adds to shadow noise, and the newer Nikon already have excellent DR that gives you quite a lot to work with in Aperture.”

(From the photo.net Nikon forum)

Flickr: Beller Kirche HDR

I was sick at home with a cold today, and I took a walk this morning in the fresh snow hoping to get rid of my headache (didn’t really work). Of course I took my camera ;)

One of the prettiest buildings in the area is the Beller Kirche.

“Standing as a symbol of Eckelsheim is the ruin of the Beller Kirche, a Late Gothic church. Since 1982, many cultural events have been being held in the summer months. In 2002, the historic Bellermarkt (market) was held once again around the Beller Kirche ruin; it had last been held in 1902.”

The weather was fab today, so I took a few shots of the church covered in snow. Post processed in Lightroom with Nik HDR Efex Pro, Color Efex Pro and Dfine. Click on the images to view them in Flickr and leave a comment ;)