I have been searching for a square (100x100mm) ND3.0 filter and I found this list:
- Formatt-Hitech Resin ProStop IRND 10 ($162.92)*
- Lee Big Stopper ($187.00)*
- Haida ND3.0 ($115) ebay
There are miles of reviews about the Lee Big Stopper and others filters, like the Hitech ND3.0, but now there are a new competitor in the filters sector, Haida, a Chinese company that are making high quality filters using Scott glasses (the same glass used by B+W) with a good price.
In will not to do an extensive or professional review because I'm not an expert in filters.
- Canon 40D
- Canon EF-S 10-22mm f/3.5-4.5 USM
- Compatible Lee holder
- 3DPideas Lee adapter (see here)
I shot in a cloudy/rainy day with some sun rays once in a while, I know it was not the best day to test the filters.
The photos have been posted without any retouch, directly from the Adobe Camera Raw.
In the next ones you can see a 100% crop of the images. I don't know if I'm wrong, but for my the Haida have a better definition.