This is the fist image I have taken with the Haida 10 stop 100 series ND filter I got recently.
I made the switch to square filters and I’m really loving them. Metering between shots is so much faster and they don’t degrade the IQ in any way. This was actually a long exposure of about 13 seconds in the middle of the day. The stormy and gloomy weather really helped with achieving such a long exposure during the day.
If you are looking into investing in a filter kit, I highly recommend Haida products as well as the actually holder and adaptor rings from The Filter Dude.