Experiences with Nikon D750 and Aperture

Hey there,

I also noticed quality issues with my D750 in the raw-files (later exports), but in the blue-colors. First I thought I exported a too compressed version of my images & went back to the original RAW file (lossless compressed, 14-bit, sRGB; particular image shot with iso 100 at good conditions) in Aperture and noticed the problems there as well. So next I just looked at the RAW-file in Previewer -- same problems. I continued to look for the latest 'Digital Camera RAW Compatibility Update (6.17), but the issues remain.

I am a bit frustrated by this at the moment.

Cheers,

-H

I suggest you send feedback to Apple. They do not necessarily read these forums. It has been a *long* time since the lead Aperture developer posted here.

Hi Ulf,

check, whether your camera uses sRGB or Adobe RGB, then check in Nikon View NX 2 which xRGB View NX assigns to the photo, and then check in Aperture which xRGB Aperture assigns.

My guess is that your camera uses sRGB, View NX 2 assigns Nikon sRGB 4.0.0.3002, and Aperture assigns Adobe RGB (1998) to the photos.

If my guess is right, Aperture does not honor camera color space information.

Tejono

Force Apple to honour camera colour space information (hope they are reading this) ... .

I don't know. Just got my new Nikon and stumbled over the same. So far it seems you can't tell Aperture to change to a specific RGB-space or apply a RGB-space of your like. My suspicion is that Aperture by default applies sRGB to jpg and Adobe RGB to RAW.

Happily, if you export "Original" from Aperture and open it in View/Capture NX, the original colour space information is preserved (e.g. sRGB). I will try out the following two in the coming weeks:

a) I use Aperture merely as database/storage place for my photos and export originals from there for processing in View/Capture NX.

b) I take all photos in RAW and Adobe RGB and buy a new hard disk. And for consumer prints export them into sRGB-JPGs (Aperture lets specify the colour space at export).

One more thing: is your D700 using 14-bit-RAW with Adobe RGB while your D750 uses 12-bit-RAW with sRGB?

Tejono

A couple things:

First, you keep talking about the "RAW color space." There is no such thing as a color space in a RAW file. Regardless of the camera settings you have (Adobe RGB or sRGB) it does not affect RAW files. The color space and other tweaks (saturation, vivid, black & white, etc.) only affect JPEG files and the preview you see on the back of the camera. RAW files do not have a color space, so there is no "color space information" for Apple to honor.

You can try tweaking the camera RAW parameters yourself if you don't like the default conversion. If you've been using Aperture for a long time, it will show up as the top adjustment brick in the list. If you're relatively recent to Aperture, the camera RAW brick is not shown by default. Add it, and then go look at the numbers for sharpness, boost, etc., and see if you can tweak them to get results you like better.

FYI, the adobe 1998 color space profile is larger and more comprehensive than the sRGB profile settings in your Nikon body. In any case, your concerns are with the RAW file convertor that the Apple OSX applies to your RAW d750 imports into Aperture. Do you have the latest OSX 10.10.2 Yosemite upgrade applied to your platform? Also you can easily change the Aperture 3.6 Raw fine tuning adjustment brick to suit your import tastes for your d750. Also note that you will get different RAW rendered images on import if you use the latest version of Lightroom or Aperture. My suggestion is to shoot your d750 with RAW/NEF files on one card and JPEG files on the other card. Import both your RAW and JPEG files as originals into Aperture and you will see what the Nikon algorithms have baked into your JPEG imports, which you can then try and duplicate in Aperture or Lightroom with your RAW/NEF files.