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1 18th May 03:33
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Default Infrared Images



I brought up this topic in Joe's Tripod thread and at Leen's suggestion we are starting an Infrared Topic, good idea! ;-) So, I'm going to attempt to clipboard the parts from the other thread here, not sure if this can be done, here goes nothin':

This is where the IR topic started:

Grant Dixon - 03:07pm Dec 3, 2003 Pacific (#89 of 101)

I purchases a camera bracket from Lensmate <http://www.lensmateonline.com>
that has the prescribed offset but I do believe that the only make one for
the G1, you will have to check around. If you have trouble the are easy to
make as the tripod socket is just a 1/4 - 20 tapped hole.

Grant

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imacgirl - 04:07pm Dec 3, 2003 Pacific (#90 of 101)

Grant, the B&W infrared pano at the site you posted is fabulous! Wonder if I can get some filters for my Minolta Dimage? I've shot some infrared color slide film in the past with the 35mm and this makes me want to get some filters for the digicam too. Better yet, is there a filter for Elements to recreate infrared that is Mac compatible or can it be simulated via the Channel Mixer?
It's funny how one topic often leads to another here, I love it, what an inspiration!
Barb
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Grant Dixon - 04:11pm Dec 3, 2003 Pacific (#91 of 101)

Barb

One of the advantages of the G1 is that it is well tuned to infrared. I
suspect when they moved to the G2 Canon built in an infrared mask limiting
this use. This is one of the reasons I went for the G1 but alas I didn't
take as many IR photos as I could have.

Grant

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imacgirl - 04:25pm Dec 3, 2003 Pacific (#92 of 101)

Grant,
Lucky you! Mine only has Vivid Color, Black & White, Solarization and Sepia for the extra settings, although I haven't tried any of those yet, Elements takes care of a lot!
Barb
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Grant Dixon - 07:26pm Dec 3, 2003 Pacific (#93 of 101)

Barb

There is no setting for IR and you must use filters and the like but ....
chip is extremely sensitive to IR and I suspect this may cause some colour
shift in other areas although I have not seen it. In any event Canon
decided to block this with later cameras

Grant

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Bert Bigelow - 07:58pm Dec 3, 2003 Pacific (#94 of 101)

Leen,
Thanks for the info on the "nodal point."
I found the following website that describes it, and gives a simple procedure for determining it for any lens/camera combination:
<http://www.edb.utexas.edu/teachnet/QTVR/NodalPoint.htm>
bert
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imacgirl - 08:06pm Dec 3, 2003 Pacific (#95 of 101)

I got it Grant, my misunderstanding, thanks! An IR setting on a digital camera would be nice.
Barb
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Leen Koper - 12:06am Dec 4, 2003 Pacific (#96 of 101)

Barbaram, a nice link to IR photography the cheap way:
<http://www.xs4all.nl/~wiskerke/artikelen/infraroodeng.html>
Although this website is mainly in Dutch, this is in english too. There are many nice topics and links on this site; worth bookmarking.
Leen
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imacgirl - 06:57am Dec 4, 2003 Pacific (#97 of 101) Edited: 04-Dec-2003 at 07:03am PST

Leen,
Thanks, great link! Definitely worth bookmarking, very informative. I just tested my Minolta Dimage S414 and the light from the remote is white, no infrared blocking filter in f
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2 18th May 03:33
michelle_thomas
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Default Infrared Images



Okay, thank you. I am off to check this links out...
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3 18th May 03:33
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....a few got chopped off, almost worked! ;-) Here's the rest of that thread:

imacgirl - 06:57am Dec 4, 2003 Pacific (#97 of 101) Edited: 04-Dec-2003 at 07:03am PST

Leen,
Thanks, great link! Definitely worth bookmarking, very informative. I just tested my Minolta Dimage S414 and the light from the remote is white, no infrared blocking filter in front of the chip! Now I have to locate two frames of developed unexposed slide film, although it may be easier to get a Wratten 87 C IR filter. My camera has no way to attach filters, also need an adaptor if they make one. My wish list is forever growing!
Does anyone know if the IR appearance can be reproduced in Elements? I could then use it on any of my images and it would be a whole lot cheaper.
Barb
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RobertHJones - 07:59am Dec 4, 2003 Pacific (#98 of 101)

Hi Barb,

Here's another infrared link for you:
<http://www.cliffshade.com/dpfwiw/ir.htm#testing>
Has lots of good information and well worth the read.

The IR response of digital cameras varies greatly. Even passing the "remote
control test", the 87 and especially 87c may not work well with many. The
89b has more transmission and may work better with the lower sensitivity
cameras.

I bought my 89b from Harrison Optical, they manufacture their own filters
and are quite inexpensive. You can get a quote at harrisonop@aol.com. I
don't know about a filter mount for your camera. That will be a problem.

Does anyone know if the IR appearance can be reproduced in Elements? I
could then use it on any of my images and it would be a whole lot cheaper.

You can simulate some aspects, I know of a link that describes one
technique. Let me look around and see if I can find it again.

Bob

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imacgirl - 08:10am Dec 4, 2003 Pacific (#99 of 101) Edited: 04-Dec-2003 at 08:11am PST

Bob,
Thanks, I'm really glad I asked about this, these links are most helpful and so is all your information. I'd appreciate the Elements link, very kind of you to look for it!
Edit: Sorry Joe, for taking over your topic with IR...we'll get back to tripods soon!
Barb
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RobertHJones - 08:25am Dec 4, 2003 Pacific (#100 of 101)

Barb,

Here's a link on simulating the infrared look in Photoshop.
<http://www.apogeephoto.com/may2003/mfulks52003.shtml>

This uses the color mixer control which isn't surfaced in Elements. But, it
is hidden in Elements and the free Hidden Power tools package contains a
tool to get to it. So, you can do it in Elements.

The tutorial does well in simulating the lightened color of green plants but
doesn't deal with the darkened sky effect. If you play around with this,
you may want to keep this in mind and possibly reduce the blue a little more
and/or mask the sky area to increase the contrast of it while leaving the
rest of the image alone.

Infrared also cuts through haze rather well and this will be harder to
simulate. You can get somewhat of a simulation by increasing local contrast
by using the unsharp mask filter: lower the amount setting to something
like 50-60 or so and set the radius high, say 25-30 or so and play with it
until you get something that looks good.

Bob

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Leen Koper - 08:39am Dec 4, 2003 Pacific (#101 of 101)

Wouldnot it be nice to start a new topic about IR images?
This might be useful for later reference.
Leen
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4 18th May 13:47
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Michelle,

Leen posted this message earlier and this link tells you how:

Barbaram, a nice link to IR photography the cheap way:
<http://www.xs4all.nl/~wiskerke/artikelen/infraroodeng.html>
Although this website is mainly in Dutch, this is in english too. There are many nice topics and links on this site; worth bookmarking.
Leen

Barb
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5 18th May 13:47
richard_coencas
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Not sure if you had this one yet, but on the subject of IR this FAQ is one of the best on the web.

<http://www.cocam.co.uk/CoCamWS/Infrared/INFRARED.HTM>

Geared mainly to film, but has some digital info and filter factors.

Rich
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6 18th May 13:47
michelle_thomas
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Default Infrared Images


Hi,

How can you tell if your camera is sensitive, or will handle an IR filter correctly? I have a Panasonic FZ-10.

Thank you from a newbie,

Michelle
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7 18th May 13:47
jane_carter
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What fun! I didn't realize that my new Coolpix 4300 is capable of infrared pictures. My old Coolpix 990 didn't seem to be, or at least not very much.
The TV remote trick is neat.
I am having fun looking thru all your informative links too.
Another neat thing to learn to do with my new camera.
Now I just have to get a hunk of developed unexposed slide film, and that is easy to do.

If I keep this up, I will never never get our poor kitchen painted.

Jane
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8 18th May 13:47
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Default Infrared Images


Rich, another excellent link, thanks!

Barb
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9 18th May 23:25
leen_koper
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Default Infrared Images


This is probably the mother of all IR and panorama links:

<http://www.a1.nl/phomepag/markerink/mainpage.htm>

If you want to follow all his links on this site, Merry Christmasses and a Happy New Years. See you again in 2005!

;-)

Leen
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10 18th May 23:25
barbara_wayne
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Default Infrared Images


Leen,

2005 may be a slight under estimate...WOW! ;-)

Barb

p.s. I decided to try out my real name here for a change, a long story as to why I never used it in the past. The only disadvantage is ALL the topics look unread, slow loading the ones at 100+ posts. ;-)
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