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Importing Nikon RAW image


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When I import a Nikon NEF file the viewed picture is not the same size as when I display with my Microsoft Photo viewer. The Affinity import is cropped. I attached the screenshots from the applications. The difference is not big but I cannot understand why Affinity is cropping during the import. I checked the document properties in the applications:

Affinity import: 8288 x 5520

Microsoft: 8256 x 5504

This is even more strange!

 

Affinity import.JPG

Photo viewer.JPG

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You may note that the Affinity image is actually larger in pixel dimensions than what the Microsoft viewer shows. In that sense, it is the Microsoft version that has been cropped, as it contains fewer pixels.

The reason for that is that the camera sensor is not accurate around the edges, so the camera manufacturer advertises a smaller sensor and image size than the camera actually produces, and then recommends that applications ignore the excess pixels around the edges. Most applications honor that recommendation, but Affinity Photo (when using the Serif Labs RAW engine) does not. Instead, Photo shows you all the pixels that the camera copied.

If it appears that the Affinity image is cropped, that may be due to the Develop Assistant having applied lens corrections, which remove distortion created by the lens as the image is taken. You can tell the Develop Assistant not to apply lens corrections via the Develop Assistant (View > Assistant Manager, then click on the Develop Assistant... button on the lower left if needed).

-- Walt
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Thanks for your explanation! I checked the Lens correction settings. When I deselect the Lens correction option I get the complete picture. In this case just a bit better without Lens correction. I like to have the upper edge in the picture. 

No lens correction.JPG

With lens correction.JPG

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