I'm just experimenting with a new lens.
Here is an image I took tonight into the sun. I was trying to capture the rays. I was surprised by the spots that appear on the grass below where the sun is situated as I've never seen an artifact like that before. They appear to be arranged somewhat in a grid pattern, but elongate as they are farther from the source. I'm not sure I've taken a shot like this with other lenses so it may very well be the fault of the sensor.
My question is: what has caused these to appear and are they a product of the lens or of the sensor?
Shot on a Fujifilm X-E1 with a 10-24mm 1:4 lens at the widest setting 10mm. The aperture is stopped way down to f/22 for 1/15sec.