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Archived from groups: alt.comp.periphs.dcameras,rec.photo.digital,rec.photo.equipment.35mm,rec.photo.film+labs,rec.photo.darkroom (More info?)
Harvey wrote:
>
> "Tom Phillips" <nospam777@aol.com> wrote in message
> news:4186E312.CF6CB08C@aol.com...
> >
> >
> > Harvey wrote:
> >>
> >> "Tom Phillips" <nospam777@aol.com> wrote in message
> >> news:4186D29F.1843CDC0@aol.com...
> >> >
> >> >
> >> > Harvey wrote:
> >> >>
> >> >> [snip]
> >> >> > ***FILM*** doesn't produce data, photoelectrons, a
> >> >> > voltage, or digital signals. It actually creates a
> >> >> > real, tangible, physical photograph. Nothing
> >> >> > representational at all.
> >> >>
> >> >> Last time I checked ***FILM*** actually holds a latent image that
> >> >> needs
> >> >> to
> >> >> be developed chemically to produce **a representation** of the
> >> >> original
> >> >> image. Or are you suggesting that the silver halides actually hold
> >> >> some
> >> >> metaphysical part of the image?
> >> >
> >> > WHY do people say such things without thinking first?
> >> >
> >> > The image is created upon exposure to light, through
> >> > chemical decomposition. The chemical change to silver
> >> > is already there. A "latent" image is a chemical image.
> >>
> >> Last time I took a film out of a camera and looked at it I couldn't see
> >> any
> >> image......
> >
> > Not surprising, since you also lack an understanding of
> > the physics involved...
> >
> >> > It's not data representing an image.
> >>
> >> In the same sense that film contains a chemical change 'representing an
> >> image' ?
> >
> > Photolysis begins before development, upon exposure.
> > I.e., image formation....
> >
>
> But its not exactly in a useable form is it? It needs to be chemically
> enhanced / stabilized to become a 'real, tangible, physical photograph'...
"enhanced"? No. It's an image. Chemical processing completes
the chemical change that begins upon exposure. The image is
there.
> in a similar way to the image stored in a CCD need to be read out [and
> processed] to become usable..... spot any similarity here?
***CCD*** and CMOS sensors DO NOT STORE ANYTHING. Period. They
can't. Not physically possible. It's photoelectric. It produces
a voltage, then digital signals, then data. Any image you see
on your computer screen is a software representation of the data.
No image.
Harvey wrote:
>
> "Tom Phillips" <nospam777@aol.com> wrote in message
> news:4186E312.CF6CB08C@aol.com...
> >
> >
> > Harvey wrote:
> >>
> >> "Tom Phillips" <nospam777@aol.com> wrote in message
> >> news:4186D29F.1843CDC0@aol.com...
> >> >
> >> >
> >> > Harvey wrote:
> >> >>
> >> >> [snip]
> >> >> > ***FILM*** doesn't produce data, photoelectrons, a
> >> >> > voltage, or digital signals. It actually creates a
> >> >> > real, tangible, physical photograph. Nothing
> >> >> > representational at all.
> >> >>
> >> >> Last time I checked ***FILM*** actually holds a latent image that
> >> >> needs
> >> >> to
> >> >> be developed chemically to produce **a representation** of the
> >> >> original
> >> >> image. Or are you suggesting that the silver halides actually hold
> >> >> some
> >> >> metaphysical part of the image?
> >> >
> >> > WHY do people say such things without thinking first?
> >> >
> >> > The image is created upon exposure to light, through
> >> > chemical decomposition. The chemical change to silver
> >> > is already there. A "latent" image is a chemical image.
> >>
> >> Last time I took a film out of a camera and looked at it I couldn't see
> >> any
> >> image......
> >
> > Not surprising, since you also lack an understanding of
> > the physics involved...
> >
> >> > It's not data representing an image.
> >>
> >> In the same sense that film contains a chemical change 'representing an
> >> image' ?
> >
> > Photolysis begins before development, upon exposure.
> > I.e., image formation....
> >
>
> But its not exactly in a useable form is it? It needs to be chemically
> enhanced / stabilized to become a 'real, tangible, physical photograph'...
"enhanced"? No. It's an image. Chemical processing completes
the chemical change that begins upon exposure. The image is
there.
> in a similar way to the image stored in a CCD need to be read out [and
> processed] to become usable..... spot any similarity here?
***CCD*** and CMOS sensors DO NOT STORE ANYTHING. Period. They
can't. Not physically possible. It's photoelectric. It produces
a voltage, then digital signals, then data. Any image you see
on your computer screen is a software representation of the data.
No image.