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    Article Taking a Pinhole Gallery
    I have looked before at pinhole photography, 
    see all the articles in the
    
    Pinhole Photography   section, and this time I set about a slightly different project to find out 
    what just could be taken on a typical day out to produce a gallery of 
    photographs using just pinhole techniques, that is without a camera lens at 
    all, but a blanking plate and small pin hole. 
    This article looks at what I did, and why, 
    with enough detail that you could use it as a guide to have a day out 
    yourself without a lens. 
     
    We put a day aside in our diary and decided 
    whatever the weather conditions this would be our day for the experiment, it turned 
    out to be an overcast, but dry day. The place we decided to visit for the 
    test was a place we had been before, Britain's second largest stone circle
Stanton Drew
 in Somerset. In many 
    ways England's most impressive stone circle, in my view more 
    interesting than
Stonehenge  or
Avebury  in 
    Wiltshire, and still 
    in its original form, rather than reconstructed like most others. However it's 
    off the beaten track, not commercialised and has very few visitors, its car 
    park will hold only 3 or 4 cars and while we were there on this visit there 
    was just a couple of other people present for a part of the time. You will 
    find we have a feature guide on the
    
    Stanton Drew Stone Circles,  but before did not have a gallery. On this trip we had two 
    photographers both with identical Nikon cameras each producing a gallery, 
    one taking photographs for a gallery with a Nikon lens on the camera, and 
    the second, me, with no lens, but using a pinhole. The gallery with the lens 
    was also to use some photos we had taken on previous trips. See the
    Stanton Drew Stone Circle - Pinhole 
Gallery  Stanton Drew Stone Circle Gallery  and to see the images we took. 
    We chose
    
    Stanton Drew Stone Circle 
 for this, in part because we wanted to add a conventional gallery for 
    this location, but also as with slow exposures for the pinhole photos, I did 
    not have to allow for people moving and stones never do, except in the 
    movies. 
    The pinhole I decided to use for this day was 
    the
    
    pinhole adaptor
    
 from the Pinhole Factory. When I last wrote a number of articles on 
    pinhole photography, I had only just managed to get this and had not had a 
    chance to try it out fully. I decided to use it on its own rather than with 
    a 
    
    tubes set  to get telephoto effects, so these images are the widest that I 
    could get with this device. I also wanted to see just how easy or hard it 
    would be to take photos, given that I could not use the viewfinder with a 
    pinhole in place and didn't want to swap lenses to adapters back and forth on a 
    locked tripod for every shot. 
    The method I used was to put the camera onto a 
    tripod and use the tripods spirit level to level the camera in all 
    directions and then just point it in the direction of the subject. Moving 
    backwards or forwards and just occasionally tilting the camera up or down to 
    get the images I wanted. I could then see what I had taken and make an 
    adjustment to the camera position and direction if necessary. Using a
Hoodman Loupe 
    
     made looking at the images I had taken far easier. The camera was fired 
    using a short 
    
    cable release.  
    
    Colour Balance 
    
     left on auto, but images taken 
    in RAW so I could, if I wanted, change this after. 
    I set the 
    
    ISO 
    
 at 640, for no specific reason, 
    slightly faster than I would have the camera routinely set, but still in the 
    mid range. Using a high ISO would not have got me off the tripod and in any 
    event I could not see what I was shooting, the pinhole image in the 
    viewfinder being too dim. A few experimental photos allowed me to get 
    the exposure variation from the 
    
    Exposure 
    
     on the 
    exposure meter, and once 
    this was known I was then able to take all the photos using the cameras 
    
    exposure meter,  and an offset exposure variation. In practice 
    I set the 
    camera to the pre-setting I had for a manual f9.5 lens, and put an exposure 
    variation of +5EV, the cameras maximum and then used the meter to go to 
    one EV overexposed. I could have, in a few seconds, created another 
    setting for the camera with a far nearer f value and then just used the 
    variation to get it right, but I was in the middle of a field and keen to get 
    on and take photos and this produced exactly the same results. With 
    hindsight I should have made a note before leaving home that the pinhole is 
    said to be f167, and perhaps have set up a camera  setting and worked out 
    the variation under test conditions, but my more messy way out in the field 
    got the same results in a minute or two. As the aperture of the pinhole is fixed, I 
    was in manual mode and just changed the speed, and speed ranged from a 
    quarter to an eighth of a second, the most common being a fifth of a 
    second.  
      
        | So what could we expect to get Pinhole photographs appear 
        sharp when viewed near to the size that they are taken, so if you had a 
        pinhole on a large format camera, for example an old plate camera with a 
        cut sheet adaptor using film, it would at the plate size appear sharp. With 
        a small camera sensor and at the size the 
        image is on the back of the camera unmagnified it appears sharpish, as 
        we start to enlarge it, we find the image is softer than we are used to 
        having with a quality lens, and the larger we take it the more 
        noticeable this becomes. The quality is not much different to that 
        produced by cheap cameras with plastic lenses. Some may like this and 
        perhaps we could say its artistic. 
        A little experimenting since has shown we 
        could fill a large screen and view this from some feet away as you would 
        a painting, or for website use perhaps the image size of around 400 
        pixels wide is about the limit to go to. Very many website photos are 
        far smaller than this and if we reduced them we would get what would 
        appear to be a sharper photo.  The top image, right, shows the photo as 
        taken with no editing. A brighter day with more light and 
        contrast would have made it appear sharper, so the second image has 
        enhanced contrast, and this time I have shown it as a black and white 
        image. However if we want to make it look more 
        like an image from an antique camera, then perhaps it should be a sepia 
        image, and the third image is shown with a sepia filter. Digital cameras do quite a bit of image 
    processing including sharpening, but without a known lens this is not 
    undertaken.  From this you can see, you could be amazed 
    that you can get reasonable photos from a camera with no lens, or 
    disappointed the results don't match that of a high end quality lens. 
         You could also see the potential to 
        produce some historic looking photos, or decide this makes no artistic 
        sense whatsoever to you. I have included two more photos in 
        unedited form, and the full gallery can be seen at Stanton Drew Stone Circle - Pinhole 
Gallery.
    
     At Stanton Drew there is a large circle 
        with a second circle within it, and nearby the remains of two further 
        stone circles, with another stone feature not far away. For the pinhole 
        gallery I just concentrated on the main circle with its second circle 
        within it. You can compare this with a gallery of 
        the same location taken using a lens on the camera in the
        
        Stanton Drew Stone Circle Gallery.
    
     Further Information 
    Pinhole 
    Photography Section 
    
    
     
    Topic Index -
    Pinhole 
    Photography 
    
     
    Pinhole Photography 
    Doorway 
    www.photographers-resource.co.uk/d/pinhole  
    Introduction to 
    Pinhole 
    Cameras 
    
      
    
    
Pinhole Adaptor
    
 
    
    Stone Circles Section
    
     
    Topic Index -
Stone Circles
    
     
    
    
    Stanton Drew Stone Circle, Somerset 
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 Unedited photo 
          
        
 with black and white 
        filter and enhanced contrast 
          
        
 as above with sepia 
        filter 
         
        
 
         
        
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