I digitized some maps with isolines every 4m. I created a DEM and the Hillshade. But the hillshade has big pixels. I use ArcGIS 10.3.

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Is there something to be look out for that I might have done wrong?

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    Which program you are using? – user30184 May 11 '15 at 20:55
  • Sorry I did not mention that I use ArcGIS 10.3. The only controls has the Hillshade command (Spatial Analyst) is input-output Azimuth Altitude and Z factor. Nothing else. I dont know if I have to change any controls in Enviromental Settings. – Vassilis May 12 '15 at 5:25

The Hillshade tool inherits cell sizes from the raster layer it is based on. If you are able to recreate this DEM using a smaller cell size, the resulting hillshade should also have smaller cells.

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    Of course it was a matter of DEM. From my rush not even think about it. Thank you very much. – Vassilis May 13 '15 at 8:24

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