Portra, Ektar or something from Fuji

RaglanSurf

RaglanSurf

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Nick
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im going to do some pinhole night shots of the Christmas decs in London and can't quite decide on which film to use, could do without the reciprocity failure.

Exposure timers likely to be in minutes rather than seconds, any suggestions?
 
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I'm twisted so I'd use Ilford Delta 3200... other than that which ever colour film you have used before and got decent results with. What format is it? If it's 120 or 35mm some of the weirdo lomo films might be quite fun to try.
 
I've got reciproicty data for Portra some where if you want. Its not Acros but its not bad. Failing that the nearest thing to Acros in colour is Provia but you'd need to be brave to shoot slide in a pinhole!
 
H'mm I though lights would be in secs....e.g a slightly floodlit church or lit street scenes is up to 8 secs for 200 ISO.well that's what the OM2 chose.
 
srichards said:
I'm twisted so I'd use Ilford Delta 3200... other than that which ever colour film you have used before and got decent results with. What format is it? If it's 120 or 35mm some of the weirdo lomo films might be quite fun to try.
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steveo_mcg said:
I've got reciproicty data for Portra some where if you want. Its not Acros but its not bad. Failing that the nearest thing to Acros in colour is Provia but you'd need to be brave to shoot slide in a pinhole!
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I think I'll go with Portra, it's pretty reliable and I don't think its too bad in the dark.
 
excalibur2 said:
H'mm I though lights would be in secs....e.g a slightly floodlit church or lit street scenes is up to 8 secs for 200 ISO.well that's what the OM2 chose.
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Yes Brian but my pinhole camera is f138 so I think getting exposure in seconds is unlikely.
 
RaglanSurf said:
Yes Brian but my pinhole camera is f138 so I think getting exposure in seconds is unlikely.
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Ah :eggface:....hoping it's not a windy day for you shooting decs in minutes...incidentally can you make the pinhole larger to let more light in? ermm well what do I know about pinhole cameras :D
 
I haven't shot low light with it but I was impressed with the colours from the Fuji Pro 160S I shot recently. Exposures were sub-1 second though so I can't be sure about longer exposures.
 
RaglanSurf said:
im going to do some pinhole night shots of the Christmas decs in London and can't quite decide on which film to use, could do without the reciprocity failure.

Exposure timers likely to be in minutes rather than seconds, any suggestions?
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These are all long exposures using Fuji Pro 160NS. Most of these are probably in the 3–8 minute range (you can't trust the exif data on the flickr pages, if you follow the links). It's the film I ordinarily use for tripod-based and/or long-exposure photographs.







 
FujiLove said:
Velvia 100 = only 2/3rd stop extra for an 8 minute exposure: http://www.fujifilm.com/products/professional_films/pdf/velvia_100_datasheet.pdf
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QFT

100F I'd use but since its discontinued......
2jf17hs.gif
....... 100 would have to do.
 
srichards said:
I think they're called pinhole for a reason ;)
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Well all I can remember is the old box brownie with no lens......if it can take a pic on a sunny day at 1/40 sec then if it had "B" it would take a night shot in so many seconds.....Ok I'm probably missing something about pinhole cameras, so where am I going wrong?
 
A box brownie would have a plastic meniscus lens. If you just take the lens off a camera, there's a lot of light getting in, but no means of focusing it, so you get a blur.

If you imagine a very small aperture on a lens, the light is just going through the very centre of the lens (we'll assume really small), and if you recall any optics you'll remember that if you start drawing diagrams of how a lens forms an image, the light through the centre goes straight through without bending. In this case, the lens isn't refracting (bending) the light, so doesn't need to be there. That's the principle of a pinhole.

There are a number of different formulae to calculate the optimum size of a pinhole, which depends on (amongst other things) the distance from pinhole to recording/imaging plane (supplied on request :D). With a large throw (measured in feet or yards) the pinhole could be made with a half inch diameter pin...

I demonstrate a camera obscura with an 18 foot drop; the image (from an f/18 lens) isn't very bright, but about 1000 times brighter than it would be from the optimum pinhole for this 18 foot distance. Say about f/984.*

* Other formulae and calculations are available.
 
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simon ess said:
It's all right Brian, don't worry.

I'm often called a pinhead and an asshole.

Both are correct.

I hope that helps.

:D
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:D Well I can always say I've used a pinhole camera when I was young....well if the old brownie was classed as a pinhole camera with a shutter covering the hole :D
 
StephenM said:
A box brownie would have a plastic meniscus lens
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VG explanation Stephen.......Oh well my memory is going as I can't remember a lens on my father's box Brownie used in the 40s.......carry on guys after a diversion o_O :D
 
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Nick,

I shot oxford street last year not with film,I was very surprised just how bright those lights are,you may be as well.

The need for very long exposure may not be necessary.
 
skysh4rk said:
These are all long exposures using Fuji Pro 160NS. Most of these are probably in the 3–8 minute range (you can't trust the exif data on the flickr pages, if you follow the links). It's the film I ordinarily use for tripod-based and/or long-exposure photographs.







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Very good...... were these shots taken using a pinhole camera?
 
excalibur2 said:
Very good...... were these shots taken using a pinhole camera?
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Oh no, these are certainly not pinhole photos. These are just photos with minutes-long exposures to address original question regarding film for long exposure times.
 
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