Making a pinhole camera.

MrDrizz

MrDrizz

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So my next project is to make a 4x5 pinhole camera. I have already bought a couple film holders off of Fleabay.

I get the basic of the distance of the film from the hole determining the focal length but what effect does the hole size have apart from the obvious f-stop and DoF.

Does a small hole produce more vignette?
 
MrDrizz said:
So my next project is to make a 4x5 pinhole camera. I have already bought a couple film holders off of Fleabay.

I get the basic of the distance of the film from the hole determining the focal length but what effect does the hole size have apart from the obvious f-stop and DoF.

Does a small hole produce more vignette?
Click to expand...
About all you need to know here:

Google Search

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auntiemaryscanary said:
This is what I used when making my 4 x 5 pinhole cameras. I didn't have any film holders at that point so was holding direct positive paper in place with blu tack so my focal lengths were "approximate".
Click to expand...
I think everything is approximate with a pinhole camera but that's part of the fun :)

@MrDrizz having made several pinholes over the years I eventually succumbed to buying one of these
www.ebay.co.uk

Pinhole shutter with 9 "lens" | eBay

Shutter exposures B, T ( cable with lock). Cable release included. Shutter cable is not covered by warranty.
www.ebay.co.uk

Whilst making a pinhole is not too hard, making a decent shutter, especially one that can be operated at at faster speeds I found to be a bit more of a challenge
 
sirch said:
I think everything is approximate with a pinhole camera but that's part of the fun :)

@MrDrizz having made several pinholes over the years I eventually succumbed to buying one of these
www.ebay.co.uk

Pinhole shutter with 9 "lens" | eBay

Shutter exposures B, T ( cable with lock). Cable release included. Shutter cable is not covered by warranty.
www.ebay.co.uk

Whilst making a pinhole is not too hard, making a decent shutter, especially one that can be operated at at faster speeds I found to be a bit more of a challenge
Click to expand...
One of the benefits of DP paper is the long exposure allowing use of a highly technical shutter - a piece of electrical tape!

The eBay seller Sirch references is where I got my pre-made (non-shutter) pinholes from. I was v satisfied with the service and costs.
 
Last edited:
sirch said:
I think everything is approximate with a pinhole camera but that's part of the fun :)

@MrDrizz having made several pinholes over the years I eventually succumbed to buying one of these
www.ebay.co.uk

Pinhole shutter with 9 "lens" | eBay

Shutter exposures B, T ( cable with lock). Cable release included. Shutter cable is not covered by warranty.
www.ebay.co.uk

Whilst making a pinhole is not too hard, making a decent shutter, especially one that can be operated at at faster speeds I found to be a bit more of a challenge
Click to expand...
That's fantastic and now on my list for the next build/upgrade.
 
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