Pinhole Photpgraphy at Wimpole

I have a Holga pinhole lens for my Canon 7D.  I have not used it in a long time.  So last weekend, on a rather grey and misty day, I took it to Wimpole.  One reason I don't use it much is that the hole is too big.  It's really less of a pinhole and more a 6-inch nail hole.  The exposures are a lot shorter than for a proper pinhole aperture.  Even with quite overcast conditions, and shooting at ISO 100, I didn't need an exposure time longer than 5 seconds.  Even so, it's a fun thing to play with occasionally, and it did suit the conditions.  The mono conversions were done quickly in Lightroom and are deliberately grungy.