Long time - no see! sorry

I went to wellington waterfront on Wednesday, lunchtime, and toke some images of the people walking, jogging and cycling while using my adjustable ND filter. Though the images came out ok I's a bit disappointed in the shadow cast in the two opposite corners and light cast in the the alternative opposite corners. I guess this was an efect created by the to opposing polarizing filters used to make up the ND filter.

As I said - ok:

The following two shots included cyclist, one wearing a red shirt and the other a blue. For the old man I would say - thank you, for your movements made to these images special;

You might have noticed the manhole cover is missing in the second shot - I could not edit-out the cover in "red cycle's" shot