Infrared Photography Competition

[Wayne J. Cosshall]

Hi All,

DIMi is running an infrared photography competition sponsored by
MaxMax.com with monthly IR filter prizes and a grand
prize of a digital camera conversion to IR mode, worth US$450. Details:
<http://www.dimagemaker.com/comps/maxmax2006/maxmaxcomp.php>
or
<http://www.dimagemaker.com/competitions.php>

Cheers,

Wayne

Wayne J. Cosshall
Publisher, The Digital ImageMaker, http://www.dimagemaker.com/
Blog http://www.digitalimagemakerworld.com/
Publisher, Experimental Digital Photography http://
www.experimentaldigitalphotography.com
Workshops and seminars: http://www.thedigitalimagemaker.com/
Personal art site http://www.artinyourface.com/

[Derek Fountain]

Post by Wayne J. Cosshall
DIMi is running an infrared photography competition sponsored by
MaxMax.com with monthly IR filter prizes and a grand
prize of a digital camera conversion to IR mode, worth US$450.

Erm, presumably you need an IR camera in order to take part in the
competition, and so the grand prize would, kind of by definition, be
worthless to its winner?

[Bill Again]

Post by Derek Fountain

Post by Wayne J. Cosshall
DIMi is running an infrared photography competition sponsored by
MaxMax.com with monthly IR filter prizes and a grand
prize of a digital camera conversion to IR mode, worth US$450.

Erm, presumably you need an IR camera in order to take part in the
competition, and so the grand prize would, kind of by definition, be
worthless to its winner?

Not necessarily so. Many digital cameras can take IR pictures using the
relevant filters. You can check if your digital camera can detect IR light
by shining the TV remote towards the camera lens. When the remote is "on"
you should see the glow from the sender when you look at it through the VF.
However, a specialist IR conversion unit or dedicated camera would be quite
a bonus.

Bill

[Joseph Meehan]

.. Not necessarily so. Many digital cameras can take IR pictures using
the relevant filters. You can check if your digital camera can detect
IR light by shining the TV remote towards the camera lens. When the
remote is "on" you should see the glow from the sender when you look
at it through the VF.

With a DSLR????

However, a specialist IR conversion unit or
dedicated camera would be quite a bonus.
Bill

[Gisle Hannemyr]

Post by Joseph Meehan

Post by Bill Again
Not necessarily so. Many digital cameras can take IR pictures using
the relevant filters. You can check if your digital camera can detect
IR light by shining the TV remote towards the camera lens. When the
remote is "on" you should see the glow from the sender when you look
at it through the VF.

With a DSLR????

Of course not - the way Bill Again describes the test only works
if the camera has an EVF.

But you can do the same test with a DSLR by taking a photograph
of a tv-remote while somebody presses a button on it that makes
it emit IR. When you review the image on the review screen,
you'll see the IR glow described.

[Wayne J. Cosshall]

Post by Gisle Hannemyr

Post by Joseph Meehan

Post by Bill Again
Not necessarily so. Many digital cameras can take IR pictures using
the relevant filters. You can check if your digital camera can detect
IR light by shining the TV remote towards the camera lens. When the
remote is "on" you should see the glow from the sender when you look
at it through the VF.

With a DSLR????

Of course not - the way Bill Again describes the test only works
if the camera has an EVF.
But you can do the same test with a DSLR by taking a photograph
of a tv-remote while somebody presses a button on it that makes
it emit IR. When you review the image on the review screen,
you'll see the IR glow described.

Hi Gang,

Yup, as Gisle said, his site and mine have lists of cameras that work.
In fact since I started testing for IR ability I have not found one
digital camera. from a compact that you have to hold the IR filter over
the lens to a dSLR that could not take some lovely shots in IR. Have a
look at the examples on Gisle's site or the IR section on mine:
<http://www.dimagemaker.com/specials/digitalir/digitalir.php>
for articles on how it works, what you need and lots of examples from a
list of 22 cameras (currently).

Cheers,

Wayne

[ASAAR]

Post by Gisle Hannemyr

Post by Joseph Meehan
With a DSLR????

Of course not - the way Bill Again describes the test only works
if the camera has an EVF.
But you can do the same test with a DSLR by taking a photograph
of a tv-remote while somebody presses a button on it that makes
it emit IR. When you review the image on the review screen,
you'll see the IR glow described.

That's a neat and useful trick that works with my Sony IR remote.
But an EVF isn't required, since the blast of IR shows up nicely on
the LCD display of Canon's A620 which has an optical viewfinder.
Also, there may be several DSLRs that can also detect IR without
having to take a picture. These are the ones that offer live,
real-time viewing on their LCD displays, and are manufactured by
Olympus, Panasonic and Leica.

[Pierre J. Proudhon]

Post by Bill Again

Post by Derek Fountain

Post by Wayne J. Cosshall
DIMi is running an infrared photography competition sponsored by
MaxMax.com with monthly IR filter prizes and a grand
prize of a digital camera conversion to IR mode, worth US$450.

Erm, presumably you need an IR camera in order to take part in the
competition, and so the grand prize would, kind of by definition, be
worthless to its winner?

Not necessarily so. Many digital cameras can take IR pictures using the
relevant filters.

That is not IR Photography. There is a big difference between using a
filter and using the film.

[Bill Again]

Post by Pierre J. Proudhon

Post by Bill Again

Post by Derek Fountain

Post by Wayne J. Cosshall
DIMi is running an infrared photography competition sponsored by
MaxMax.com with monthly IR filter prizes and a grand
prize of a digital camera conversion to IR mode, worth US$450.

Erm, presumably you need an IR camera in order to take part in the
competition, and so the grand prize would, kind of by definition, be
worthless to its winner?

Not necessarily so. Many digital cameras can take IR pictures using the
relevant filters.

That is not IR Photography. There is a big difference between using a
filter and using the film.

Maybe so. But if all you have available is film then I guess that you just
have to put up with it.

Bill Again < that's torn it >

[Unclaimed Mysteries]

Post by Pierre J. Proudhon

Post by Bill Again

Post by Derek Fountain

Post by Wayne J. Cosshall
DIMi is running an infrared photography competition sponsored by
MaxMax.com with monthly IR filter prizes and a grand
prize of a digital camera conversion to IR mode, worth US$450.

Erm, presumably you need an IR camera in order to take part in the
competition, and so the grand prize would, kind of by definition, be
worthless to its winner?

Not necessarily so. Many digital cameras can take IR pictures using the
relevant filters.

That is not IR Photography. There is a big difference between using a
filter and using the film.

Uh, what? If you mean simulating IR in software "filters," that's one
thing. Otherwise, actual IR photons don't care what kind of sensor they
hit, whether it's an electronic array or film.

[Pierre J. Proudhon]

In article <0andh.7840$***@newsread2.news.pas.earthlink.net>,
Unclaimed Mysteries

Post by Unclaimed Mysteries

Post by Pierre J. Proudhon

Post by Bill Again

Post by Derek Fountain

Post by Wayne J. Cosshall
DIMi is running an infrared photography competition sponsored by
MaxMax.com with monthly IR filter prizes and a grand
prize of a digital camera conversion to IR mode, worth US$450.

Erm, presumably you need an IR camera in order to take part in the
competition, and so the grand prize would, kind of by definition, be
worthless to its winner?

Not necessarily so. Many digital cameras can take IR pictures using the
relevant filters.

That is not IR Photography. There is a big difference between using a
filter and using the film.

Uh, what? If you mean simulating IR in software "filters," that's one
thing. Otherwise, actual IR photons don't care what kind of sensor they
hit, whether it's an electronic array or film.

The results are different if you spent any time using IR film. All
Infrared film is sensitive to both some Infrared and visible light.

Digital IR photography typically relies on reflected NIR from sources
like the sun and incandescent lamps. Digital camera sensors based on
silicon are not sensitive to the far (thermal) IR wavelengths (typically
3.0µ and longer) emitted by objects at room to body temperatures. Heat
leaks from houses aren't visible in the NIR, and people, animals and
other objects at room to body temperatures don't glow in the NIR any
more than they do in visible light. To photograph them in the dark, you
have to provide proper NIR illumination using a suitably equipped camera
like the Sony DSC-F7x7 or an external NIR-only flash with no filter.

I can go on but you bore me.

[Wayne J. Cosshall]

Post by Pierre J. Proudhon
The results are different if you spent any time using IR film. All
Infrared film is sensitive to both some Infrared and visible light.
Digital IR photography typically relies on reflected NIR from sources
like the sun and incandescent lamps. Digital camera sensors based on
silicon are not sensitive to the far (thermal) IR wavelengths (typically
3.0µ and longer) emitted by objects at room to body temperatures. Heat
leaks from houses aren't visible in the NIR, and people, animals and
other objects at room to body temperatures don't glow in the NIR any
more than they do in visible light. To photograph them in the dark, you
have to provide proper NIR illumination using a suitably equipped camera
like the Sony DSC-F7x7 or an external NIR-only flash with no filter.
I can go on but you bore me.

The fact that the results are different does not make one more valid
than the other. Digital sensors don't have the same halation of many IR
films, so the results look a bit different, that's all.

What you then say about digital IR also applies to film IR, since both
rely on reflected NIR. IR film also does not have sensitivity beyond the
NIR, typically cutting off before 1000nm, so I don't get the point you
are trying to make.

Cheers,

Wayne

[Pierre J. Proudhon]

Post by Wayne J. Cosshall
The fact that the results are different does not make one more valid
than the other.

No. But they are different. That was my point. Yawn.

[Frank ess]

Post by Pierre J. Proudhon

Post by Wayne J. Cosshall
The fact that the results are different does not make one more valid
than the other.

No. But they are different. That was my point. Yawn.

What it means, this "Yawn"?

[Gisle Hannemyr]

Post by Pierre J. Proudhon
No. But they are different. That was my point. Yawn.

I think you should go and get some sleep.
You don't make sense, so a rest will probably do you good.

[k]

"Wayne J. Cosshall" <***@dimagemaker.com> wrote in message news:45762bed$0$9770$***@news.optusnet.com.au...
| Pierre J. Proudhon wrote:


Digital sensors don't have the same halation of many IR
| films, so the results look a bit different, that's all.

er, the Koni IR film had an antihalation layer built into the film - and
anyone who really understood IR who wanted to use Kodak but didn't want
halation covered the pressure plate with black paper (120 backing paper was
good)

k

[Unclaimed Mysteries]

Post by Pierre J. Proudhon
The results are different if you spent any time using IR film. All
Infrared film is sensitive to both some Infrared and visible light.
Digital IR photography typically relies on reflected NIR from sources
like the sun and incandescent lamps. Digital camera sensors based on
silicon are not sensitive to the far (thermal) IR wavelengths (typically
3.0µ and longer) emitted by objects at room to body temperatures.

Many of us are already well aware that:

1) a silicon detector needs refrigeration to effectively image IR beyond
near-IR.

2) near-IR photography relies heavily upon primary illumination from a
strong source such as the Sun.

3) an 89B-ish filter with any digital camera, converted or not, is
unlikely to be used in thermography.

...

Post by Pierre J. Proudhon
I can go on but you bore me.

MISSION ACCOMPLISHED.

[j***@phred.org]

Post by Pierre J. Proudhon

Post by Bill Again

Post by Derek Fountain

Post by Wayne J. Cosshall
DIMi is running an infrared photography competition sponsored by
MaxMax.com with monthly IR filter prizes and a grand
prize of a digital camera conversion to IR mode, worth US$450.

Erm, presumably you need an IR camera in order to take part in the
competition, and so the grand prize would, kind of by definition, be
worthless to its winner?

Not necessarily so. Many digital cameras can take IR pictures using the
relevant filters.

That is not IR Photography. There is a big difference between using a
filter and using the film.

True, especially if you're thinking of Kodak IR film. With digital, if
you want halation and massive grain, you need to add it in processing.

Not a slam of HIE, I actually do like its halation and grain. But if
you have a good digital IR image, you really can add the halation and
grain afterwards.

As far as sensitivity to IR, digital cameras that still have their
internal IR-blocking filters are slower than Konica 750 IR film with an
87-series filter. But if you have a camera without the internal IR
blocking filter, digital can be as fast as HIE, and most digital sensors
are sensitive much deeper into the IR spectrum than film IR was.

[Gisle Hannemyr]

Post by Pierre J. Proudhon

Post by Bill Again
Not necessarily so. Many digital cameras can take IR pictures using
the relevant filters.

That is not IR Photography.

True. That is near-IR photography.
And is you use film, that is near-IR photography too.

Post by Pierre J. Proudhon
There is a big difference between using a filter and using the film.

Uh? What make you believe that you you don't need a filter if you use
film for near-IR?

Take a look at the spectral sensitivity diagram for Kodak's
HIE amd HSI Ingrared films:

Loading Image...

As you can see the film is a lot more sensitive at 400 nm (blue) than
it is at 720 nm (where is where near-IR starts). This means that
unless you use a filter like Wratten #89B to cut off frequencies below
720 nm, visible light will swamp the near-IR right, so it will mainly
be a visible light photograph.

[Mr.T]

Post by Gisle Hannemyr
Take a look at the spectral sensitivity diagram for Kodak's

http://www.kodak.com/global/en/professional/support/techPubs/f13/f002_0333ac
.gif

Post by Gisle Hannemyr
As you can see the film is a lot more sensitive at 400 nm (blue) than
it is at 720 nm (where is where near-IR starts). This means that
unless you use a filter like Wratten #89B to cut off frequencies below
720 nm, visible light will swamp the near-IR right, so it will mainly
be a visible light photograph.

True, and many of my IR Ektachromes were taken with little or no filtration
for that exact reason. The colors are more natural, and IR sources are
enhanced in a fairly subtle way. It all depends on what effect you are after
for the shot at hand obviously.

MrT.

[Gisle Hannemyr]

Post by Derek Fountain

Post by Wayne J. Cosshall
DIMi is running an infrared photography competition sponsored by
MaxMax.com with monthly IR filter prizes and a grand
prize of a digital camera conversion to IR mode, worth US$450.

Erm, presumably you need an IR camera in order to take part in the
competition, and so the grand prize would, kind of by definition, be
worthless to its winner?

No. Most digital cameras can - to a varying degree - take IR photos.
I maintain a webpage listing some of these here:
http://hannemyr.com/photo/ir.html
I know Wayne J. Cosshall has a similar list on his web site.

Of course a converted camera is simpler and more convenient to
use, but most digital cameras will do for IR.

[Dave]

On Tue, 05 Dec 2006 21:30:33 +1100, "Wayne J. Cosshall"

Post by Wayne J. Cosshall
Hi All,
DIMi is running an infrared photography competition sponsored by
MaxMax.com with monthly IR filter prizes and a grand
<http://www.dimagemaker.com/comps/maxmax2006/maxmaxcomp.php>
or
<http://www.dimagemaker.com/competitions.php>

Thanks Wayne but the Terms and Conditions seem to assume that the
world ends at the borders of the USA. I couldn't see any mention of
place of residence at all.

Dave.
<http://www.henniker.org.uk> 3000 photos especially
Edinburgh & Scotland. + 3D rendered art, old ads etc.
Délété david for email; watch the spam filters.

[Wayne J. Cosshall]

Post by Dave
Thanks Wayne but the Terms and Conditions seem to assume that the
world ends at the borders of the USA. I couldn't see any mention of
place of residence at all.
Dave.
<http://www.henniker.org.uk> 3000 photos especially
Edinburgh & Scotland. + 3D rendered art, old ads etc.
Délété david for email; watch the spam filters.

Hi Dave,

I'd don't see how you imply that it is US centric. The only US mention
in the terms and conditions is the one about date definitions of the end
of the month. I picked US Pacific time because it is about the last time
zone from which I get entries before the dateline and just in case of
dispute I had to pick some point. DIMi is truly international. I'm in
Australia, the site is hosted in Texas (servers are bigger in Texas :)
and I get entries from all over the world.

People do have to email with their entry their address so we can
organise for prizes to be sent.

Cheers,

Wayne

[UC]

Post by Wayne J. Cosshall
Hi All,
DIMi is running an infrared photography competition sponsored by
MaxMax.com with monthly IR filter prizes and a grand
<http://www.dimagemaker.com/comps/maxmax2006/maxmaxcomp.php>
or
<http://www.dimagemaker.com/competitions.php>
Cheers,
Wayne
Wayne J. Cosshall
Publisher, The Digital ImageMaker, http://www.dimagemaker.com/
Blog http://www.digitalimagemakerworld.com/
Publisher, Experimental Digital Photography http://
www.experimentaldigitalphotography.com
Workshops and seminars: http://www.thedigitalimagemaker.com/
Personal art site http://www.artinyourface.com/

Fucking idiots. Why give a camera away as a prize, when you need a
camera to win?

Give away an ipod or something else, dumbass.

[Wayne J. Cosshall]

Post by UC
Fucking idiots. Why give a camera away as a prize, when you need a
camera to win?
Give away an ipod or something else, dumbass.

I'd normally ignore such a post but I must correct one thing: the grand
prize is not a camera, but a camera conversion of a camera that the
winner must provide. The monthly prizes are also filters that people
would not commonly have and thus offer something interesting.

Many people have several cameras. In my case I chose to have one
converted to IR only for much shorter exposures. Judging from the
entries that are also starting to roll in, others obviously also think
it is worthwhile.

Cheers,

Wayne

[UC]

Post by Wayne J. Cosshall

Post by UC
Fucking idiots. Why give a camera away as a prize, when you need a
camera to win?
Give away an ipod or something else, dumbass.

I'd normally ignore such a post but I must correct one thing: the grand
prize is not a camera, but a camera conversion of a camera that the
winner must provide. The monthly prizes are also filters that people
would not commonly have and thus offer something interesting.
Many people have several cameras. In my case I chose to have one
converted to IR only for much shorter exposures. Judging from the
entries that are also starting to roll in, others obviously also think
it is worthwhile.
Cheers,

You're a moron.

Post by Wayne J. Cosshall
Wayne
--
Wayne J. Cosshall
Publisher, The Digital ImageMaker, http://www.dimagemaker.com/
Blog http://www.digitalimagemakerworld.com/

[Wayne J. Cosshall]

Post by UC
You're a moron.

LOLOL

Thanks for the laugh

[UC]

Post by Wayne J. Cosshall

Post by UC
You're a moron.

LOLOL
Thanks for the laugh
--
Wayne J. Cosshall
Publisher, The Digital ImageMaker, http://www.dimagemaker.com/
Blog http://www.digitalimagemakerworld.com/

No respect...no repect at all.

I dropped some change in the Salvation Army pot and they threw it back
at me.

Casper the Friendly Ghost hit me with a baseball bat.

I fell in a well and asked for help. Lassie heard me but didn't come to
help.

Gentle Ben almost ripped my arm off.

[[BnH]]

School christmas break on already I believe.

Post by UC

Post by Wayne J. Cosshall

Post by UC
You're a moron.

LOLOL
Thanks for the laugh
--
Wayne J. Cosshall
Publisher, The Digital ImageMaker, http://www.dimagemaker.com/
Blog http://www.digitalimagemakerworld.com/

No respect...no repect at all.
I dropped some change in the Salvation Army pot and they threw it back
at me.
Casper the Friendly Ghost hit me with a baseball bat.
I fell in a well and asked for help. Lassie heard me but didn't come to
help.
Gentle Ben almost ripped my arm off.