Manual Cameras, Metering and Reciporcity failure (and other ramblings)
I don’t think until I got my Zero Image Pinhole camera, that I ever had a “proper” (e.g. not an instamatic) camera that didn’t have metering.  Despite having used a light meter in studio situations I’ve never used them outside.  When I first got my pin hole camera I didn’t have my light meter with me, so cunningly I set my Canon 40D to ISO 125 and used that as my light meter.  I also used my Hassleblad Xpan for the same purpose, as it was loaded with Ilford FP4 Plus, the same ISO 125 film that was loaded in my Zero Image pin hole camera.  The results were quite favourable I think.
When you expose an image (and depending on the film) the laws of reciprocity kick in, which in general mean, if you have an exposure of over 1 second, you actually have to expose for longer than the meter is suggesting to ensure that your film is collecting all the light.  As I didn’t have a decent internet connection, I used Zero Image’s rough guide for reciprocity failure which are as follows:-
- Exposure between 1 and 4 seconds, multiply by 2
- Exposure between 5 and 49 seconds, multiply by 5
- Anything greater than 50 seconds, multiply by 12
I’m not sure what it is but these shots don’t “please” me as much as what the first two do.  Maybe its the challenging lighting conditions (e.g. in woodland with brightish sun).  Perhaps its because the scenes are too busy, too much happening?  Perhaps I need to look at simplifying my photography to go with the simple form of photography that pinhole is, e.g. have only one key thing in the image, and the backgrounds should be as uncluttered as possible.
I did start writing this post, with the intent to “blame” hard and fast rules and proper light meters for what I think is a run of poor images.  But perhaps the problem is I’m trying to do too much with a simple bit of kit.  I’m learning that with pinhole photography the closer you get the better as at 6 x 9 or 6 x 12 the image is W  I  D  E  , but at the same time traditional panoramic views don’t lend themselves well to pinhole photography I feel.

The above picture of Nine Stones Close in Derbyshire was shot at about 30 meters from the nearest stone with my Zero Image Pinhole.  To look at it you might think I was a lot further away.  I shot it where I did so that none of the stones where overlapping, but they are hardly noticeable at that distance.  I think if I went back I would try much closer, to the point that I am almost beside one of the stones to see how that works.
In the meantime, if the light is right outside, I’m going to switch my camera down to 6 x 6 (its the multi format version) and pop in some Provia 100 and see how I get on photographing flowers, I think the results could be quite interesting and almost dream like – but that remains to be seen.


















