Posted by a reviewer on Amazon

If you set it that high you will get some purple saturation and possibly a weird hourglass purplingexposure effect

Posted by a reviewer on Amazon

Even in the out doors with an fstop of 1

Posted by a reviewer on Amazon

My problem was that i could not screw the filter onto the lens and then reattach the lens hood because the adjustable part of the filter was larger than the diameter of the lens something i didnt notice on the image

Posted by a reviewer on Amazon

Digital film is pretty cheap

Posted by a reviewer on Amazon

There are 2 real purposes that people use these for landscapeslongexposureswaterfallspinhole these give you a long shutter speed so that you get motion in the photo motion in a waterfall opposed to frozen in place water it gives a ghost town look on long exposures of cities or a dreamy look with the motion of subjects moving

Posted by a reviewer on Amazon

If youre doing landscapes at f11 or f16 it probably wont matter

Posted by a reviewer on Amazon

The times it does matter is when youre using it for portraits at f1