Actually, if you think about it, it is not such an out-there idea. most of
the first phase digital backs for 4x5's where scan back. The only reason a
flat bed scanner emits light is so that it can scan the image inside a dark
box. The actual ccd does emit any light itself. I've thought about
experi
Hi-
There is another direction for digital pinhole cameras- steal some
tricks from the Astropohographers. They have a similar problem- they
need long exposures to gather up enough star light to make an exposure.
And many of them are using digital cameras. They get past the noise
problem by cooling
I doubt the aperture priority will work proerly with the pinhole, if I
understand you correctly. there doesn't seem to be any reciprocity failure
within the 30 second exposure time limits. I haven't tried longer.
- Original Message -
From: "gregg b. mc neill"
To:
Sent: Wednesday, June 19,
It's a lot of monkeying around with equipment, and seems to me to violate
one of the first principles of pinhole, to have as little as possible
between me and the image.
- Original Message -
From: "Shannon Stoney"
To:
Sent: Wednesday, June 19, 2002 12:03 PM
Subject: Re: [pinhole-discussio
>From: "luish m. coelho"
> eco...@aol.com wrote:
>
>> With all the discussion now centred on scanners, I wondered if anyone had
>> tried a
>> pinhole scanner ? I hope to try a card body with a tracing paper screen
>> against the glass plate and a suitable pinhole. Aimed at a bright subject it
>>
If I'm setting my analog Cannon A-1 to Aperture Priority, with the pinhole
bodycap, will the exposure that the camera gives me reflect any of the
reciprocity adjustments needed to porperly expose the image?
Also is there any reciprocity concerns in digital?
thanks in advance
gregg mc neill
Oppps. Someone already offered that advice.
Bill
From: "Bill Finger"
Reply-To: pinhole-discussion@p at ???
To: pinhole-discussion@p at ???
Subject: Re: [pinhole-discussion] No 8 gel filter
Date: Wed, 19 Jun 2002 17:39:50 +
Also, if you have access to a spot meter, you can check to
Also, if you have access to a spot meter, you can check to see what the stop
lose is by taking a reading and then taking a second reading thru the
filter.
-Bill
From: "gregg b. mc neill"
Reply-To: pinhole-discussion@p at ???
To: pinhole-discussion@p at ???
Subject: Re: [pinhole-disc
Hi
Andrew Davidhazy's scanner camera info is at:
http://www.rit.edu/~andpph/text-better-scanner-cam.html
http://www.rit.edu/~andpph/text-demo-scanner-cam.html
A scanner is actually a very specialized digital strip camera. Its designed to
construct a
digital image (much like a circuit camera)
eco...@aol.com wrote:
I am told that it is possible to use a camera body cap with a pinhole in on a
Canon camera
Ellis.
I've built one digital pinhole out of a broken sony s70 by taking out
the lenses (its not a removable model so I had to unscrew it) and
placing a matchbox inside
eco...@aol.com wrote:
With all the discussion now centred on scanners, I wondered if anyone had
tried a
pinhole scanner ? I hope to try a card body with a tracing paper screen
against the glass plate and a suitable pinhole. Aimed at a bright subject it
should, in theory
work !
Watch this spa
American Cinematographer Manual says to increase 1 stop.
That's for a Kodak Wratten gel #8
gregg mc neill
On Tue, 18 Jun 2002, Shannon Stoney wrote:
> Hi. I have this #8 gel filter that I've been putting in my pinhole
camera.
> At first I thought that it wouldn't make any difference as to e
I think that Andrew Davidhazy has some info on his web site (try a web
search
for his last name...) on making a slit-scan digital camera from a cheap
photo scanner.
Mike Vande Bunt
eco...@aol.com wrote:
With all the discussion now centred on scanners, I wondered if anyone had
tried a
pinhole
I am told that it is possible to use a camera body cap with a pinhole in on a
Canon camera. Set the dial to aperture priority which, without a lens fitted,
automatically selects 'stop down metering' and will give the correct exposure
for the film speed set.
The pinhole is approximately 0.28 mm d
With all the discussion now centred on scanners, I wondered if anyone had
tried a
pinhole scanner ? I hope to try a card body with a tracing paper screen
against the glass plate and a suitable pinhole. Aimed at a bright subject it
should, in theory
work !
Watch this space.
Ellis.
I liked this a lot. I have been wondering if digital pinhole was possible.
What did you mean that it was kind of a nothing experience? Do you mean
compared with regular pinhole film photography?
--shannon
> Here is an image from a pinhole bodycap on a Nikon D1X digital camera.
> www://???/d
Here is an image from a pinhole bodycap on a Nikon D1X digital camera.
www://???/discussion/upload/gallery2002.php?pic=digital_pinho
le.jpg
The camera allows exposure times up to 30 seconds. Compose and meter for F22
(you can pre-set ISO and just use what you were otherwise using). Multiply
exp
Just a couple of weeks ago, I scanned a couple of my
grandfather's glass negatives from around 1903-1904.
My scanner has an attachment for scanning negatives,
but it is specifically for 35 mm, so a 4x5 glass
negative was too big. I placed a sheet of plain white
paper on top of the negative and shin
Gord wrote:
>
> If you have a light meter try metering and then putting the gel filter in
> front of the meter to see it makes a difference in the reading. There is
> likely some difference, whether or not its significant is the question.
>
I did this yesterday and the result seemed to be that
If you have a light meter try metering and then putting the gel filter in
front of the meter to see it makes a difference in the reading. There is
likely some difference, whether or not its significant is the question.
Gord
On Tue, 18 Jun 2002, Shannon Stoney wrote:
> Hi. I have this #8 gel f
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