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#21
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Pinhole shots of the Civil War (re-enactments)
On 2013.01.29 08:37 , Rob wrote:
Interesting - digital is a whole new ball game as compared to film, long and short exposures don't seem to have that reciprocity failure to cope with. What digital makes up for in reciprocity failure it more than compensates for in noise... -- "There were, unfortunately, no great principles on which parties were divided – politics became a mere struggle for office." -Sir John A. Macdonald |
#22
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Pinhole shots of the Civil War (re-enactments)
On 2013.01.29 17:21 , Doug McDonald wrote:
The real state of the art for pinholes is twofold: 1) Laser drilling or 2) spark erosion drilling Both make nice pinholes down to about 0.001 inch. Lasers go smaller. One can buy such pinholes at reasonable prices (i.e. a few to a few tens of dollars). Accuracy is not that important. It just helps estimate the first exposure times. Once a few tests are done, the actual aperture can be calculated. Nearly round is round enough. -- "There were, unfortunately, no great principles on which parties were divided – politics became a mere struggle for office." -Sir John A. Macdonald |
#23
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Pinhole shots of the Civil War (re-enactments)
On 1/30/2013 7:31 PM, Alan Browne wrote:
On 2013.01.29 08:19 , Rob wrote: On 28/01/2013 4:03 AM, Alan Browne wrote: I don't feel like shooting film for such, but I might use a lens adaptor and shoot some digital pinholes... the very long exposures may be quite noise prone, however... Just noticed this item after reading the exposure problem. You can use a body cap and make a pinhole through that, if that is too close then use an extension tube. Drill a hole through the cap and stick some aluminium tape and make a pin prick through it. I usually use a thick sewing (darning) needle. I have an adaptor for Hassy lenses for my A-mount (Sony). So I can "adapt" all manner of extensions to that. Making the aperture itself (alu paper/pin) is the least trouble. I have a micrometer to measure the aperture of the pin or needle and the film plane is well marked to get the FL. I'll probably go for a wide-ish FOV - the adaptor alone will probably be enough. I am looking forward to seeing the results. please share them. -- PeterN |
#24
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Pinhole shots of the Civil War (re-enactments)
On 2013.01.31 08:40 , PeterN wrote:
I am looking forward to seeing the results. please share them. Don't hold your breath. I haven't done any photography in Jan. Trend is not looking better. -- "There were, unfortunately, no great principles on which parties were divided – politics became a mere struggle for office." -Sir John A. Macdonald |
#25
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Pinhole shots of the Civil War (re-enactments)
Alan Browne wrote:
On 2013.01.29 08:37 , Rob wrote: Interesting - digital is a whole new ball game as compared to film, long and short exposures don't seem to have that reciprocity failure to cope with. What digital makes up for in reciprocity failure it more than compensates for in noise... Whereas good old chemical film is grain free and can be averaged over multiple exposures easily? -Wolfgang |
#26
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Pinhole shots of the Civil War (re-enactments)
On 2/3/2013 12:31 PM, Wolfgang Weisselberg wrote:
Alan Browne wrote: On 2013.01.29 08:37 , Rob wrote: Interesting - digital is a whole new ball game as compared to film, long and short exposures don't seem to have that reciprocity failure to cope with. What digital makes up for in reciprocity failure it more than compensates for in noise... Whereas good old chemical film is grain free and can be averaged over multiple exposures easily? -Wolfgang Obviously, you have never shot film. Although I do not like to ust cite Wikepedia, there is sufficient information to show how wrong you are. http://en.wikipedia.org/wiki/Film_grain -- PeterN Beware the trolling wolf |
#27
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Pinhole shots of the Civil War (re-enactments)
On 2013-02-04 16:43:25 -0800, PeterN said:
On 2/3/2013 12:31 PM, Wolfgang Weisselberg wrote: Alan Browne wrote: On 2013.01.29 08:37 , Rob wrote: Interesting - digital is a whole new ball game as compared to film, long and short exposures don't seem to have that reciprocity failure to cope with. What digital makes up for in reciprocity failure it more than compensates for in noise... Whereas good old chemical film is grain free and can be averaged over multiple exposures easily? -Wolfgang Obviously, you have never shot film. Although I do not like to ust cite Wikepedia, there is sufficient information to show how wrong you are. http://en.wikipedia.org/wiki/Film_grain I have a feeling you are responding to Wolfgang's demonstration of Teutonic sarcasm. -- Regards, Savageduck |
#28
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Pinhole shots of the Civil War (re-enactments)
On 2/4/2013 9:12 PM, Savageduck wrote:
On 2013-02-04 16:43:25 -0800, PeterN said: On 2/3/2013 12:31 PM, Wolfgang Weisselberg wrote: Alan Browne wrote: On 2013.01.29 08:37 , Rob wrote: Interesting - digital is a whole new ball game as compared to film, long and short exposures don't seem to have that reciprocity failure to cope with. What digital makes up for in reciprocity failure it more than compensates for in noise... Whereas good old chemical film is grain free and can be averaged over multiple exposures easily? -Wolfgang Obviously, you have never shot film. Although I do not like to ust cite Wikepedia, there is sufficient information to show how wrong you are. http://en.wikipedia.org/wiki/Film_grain I have a feeling you are responding to Wolfgang's demonstration of Teutonic sarcasm. I missed it. -- PeterN |
#29
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Pinhole shots of the Civil War (re-enactments)
PeterN wrote:
On 2/4/2013 9:12 PM, Savageduck wrote: On 2013-02-04 16:43:25 -0800, PeterN said: On 2/3/2013 12:31 PM, Wolfgang Weisselberg wrote: Alan Browne wrote: On 2013.01.29 08:37 , Rob wrote: Interesting - digital is a whole new ball game as compared to film, long and short exposures don't seem to have that reciprocity failure to cope with. What digital makes up for in reciprocity failure it more than compensates for in noise... Whereas good old chemical film is grain free and can be averaged over multiple exposures easily? Obviously, you have never shot film. Although I do not like to ust cite Wikepedia, there is sufficient information to show how wrong you are. http://en.wikipedia.org/wiki/Film_grain I have a feeling you are responding to Wolfgang's demonstration of Teutonic sarcasm. I missed it. Don't feel bad, it was very subtle, sort of like the bombardment and the subsequent landing in Normandy. The Führer *knew* the real landing would happen in Calais. -Wolfgang |
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