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Old 11th March 2006   #1
jc1
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Default D200 IR Test

Related threads:
1) D200 Unsuitable for IR
2) D200 can IR or not?
3) Does this one consider IR capable???
4) D200 IR capability

D200 with R72 filter, ISO400 F/5.6 10sec


Your comments, please.
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Old 11th March 2006   #2
eugeneceh
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Default Re: D200 IR Test

Originally Posted by jc1
Related threads:
1) D200 Unsuitable for IR
2) D200 can IR or not?
3) Does this one consider IR capable???
4) D200 IR capability

D200 with R72 filter, ISO400 F/5.6 10sec


Your comments, please.
Beautiful! I like the effect on the leaves of the trees...
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Old 11th March 2006   #3
teerex
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Default Re: D200 IR Test

Thanks for sharing jc1. So the D200 is IR capable.

Anything different? The usual, set CWB, R72 over lens, and shoot?
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Old 11th March 2006   #4
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Default Re: D200 IR Test

Originally Posted by eugeneceh
Beautiful! I like the effect on the leaves of the trees...
Thanks.
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Old 11th March 2006   #5
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Default Re: D200 IR Test

Originally Posted by teerex
Thanks for sharing jc1. So the D200 is IR capable.

Anything different? The usual, set CWB, R72 over lens, and shoot?
Test on unmodified D200, CWB was done on NC4.
Long exposure time!
Still testing.

Cheers
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Old 11th March 2006   #6
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Default Re: D200 IR Test

Another test shot.

D200 with R72 filter, ISO320 F/6.3 8sec
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Old 11th March 2006   #7
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Default Re: D200 IR Test

Originally Posted by jc1
Test on unmodified D200, CWB was done on NC4.
Long exposure time!
Still testing.

Cheers
This is interesting...

Do you mean that you modified a file and loaded it onto the D200 as a CWB reference photo? If so, this would be really interesting as the D70/D70s does not seem to allow the use of modified files as CWB reference photos. Or is there an updated feature in the NC4 camera control that allows users to change the CWB?

Still, for me, the long exposure time makes it less desireable for IR...but if the CWB can be adjusted in NC4, maybe a modified D200 is in the pipeline...

Cheers,
Matt
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Old 11th March 2006   #8
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Default Re: D200 IR Test

Yeh would like to know how it is being done.
I tried to set it up the last time and it does not work.
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Old 11th March 2006   #9
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Default Re: D200 IR Test

I'm guessing jc1 saved the white balance from an NEF shot with a D70 that had the CWB for IR into a Capture white balance file; Then opened the D200 NEF and loaded the saved white balance file onto it. (white balance files can be saved and loaded for NEFs using the Settings->White Balance menu)
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Old 11th March 2006   #10
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Default Re: D200 IR Test

Maybe you are right. I will try it out when I get back my D200.

Originally Posted by gooseberry
I'm guessing jc1 saved the white balance from an NEF shot with a D70 that had the CWB for IR into a Capture white balance file; Then opened the D200 NEF and loaded the saved white balance file onto it. (white balance files can be saved and loaded for NEFs using the Settings->White Balance menu)
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Old 11th March 2006   #11
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Default Re: D200 IR Test

Originally Posted by gooseberry
I'm guessing jc1 saved the white balance from an NEF shot with a D70 that had the CWB for IR into a Capture white balance file; Then opened the D200 NEF and loaded the saved white balance file onto it. (white balance files can be saved and loaded for NEFs using the Settings->White Balance menu)
Your method may work.
I did a slightly different approach.

Thanks
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Old 11th March 2006   #12
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Default Re: D200 IR Test

deadpixel & Dennis,

I shall discuss my method and some problem which I have observed later.

Thanks.
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Old 11th March 2006   #13
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Default Re: D200 IR Test

Test shot after the WB preset was successfully loaded into D200, pic were all taken in RAW format.

Pic#A1 Normal color pic, R72 filter was not attached.


Pic#A2 D200 loaded with WB preset in preset d-1 and using R72 filter.
Pic converted from RAW, no PS done.


Pic#A3 After standard IR processed with PS channel mixer


Thanks
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Old 11th March 2006   #14
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Default Re: D200 IR Test

D200 WB for IR

Determine the WB preset
1) Attach IR filter to lens, Select RAW format, Auto WB, Manual exposure. AE will not work.
You may like to start with ISO400, f/5.6, 10 sec, and determine the correct exposure by observing the highlight on the LCD screen.
2) Transfer the raw file to the computer. Open the file with NC version 4.4 or higher version.

The follwing pic shows the pic with Auto WB.


3) In NC4.4, under tool palette 2, there are 2 parameters under White Balance, namely, set color temperature and set gray point
..a) Under set color temperature select “set gray point”
..b) Under “set gray point”, choose “use a single point”, click “start” and drag the cursor to the picture area, point appropriately (can use leaf as reference point) and click.
.. c) Click on the D-lighting in tool palette 1 to enhance the brightness and contrast, if necessary.

WB of the the following pic was determined using "set to gray point"


4) Save the edited raw file. Do not quit NC4.

Transfer WB preset to D200
1) Refer to D200 manual page 107. USB has 2 options, Mass Storage and PTP.
On D200, select PTP for USB option.
2) Connect USB cable from computer to D200 USB port.
3) Refer to D200 manual page 39-41.
On NC4.4, under the pull down menu, Settings/white Balance/Writing to camera…
follows accordingly the assisted instruction to transfer the WB preset to D200.

Your D200 is now IR ready.

Thanks.

Amendment: step 3a is unnecessay and can be ignored.

Last edited by jc1; 12th March 2006 at 11:36 AM.
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Old 11th March 2006   #15
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Default Re: D200 IR Test


GREAT JOB!!! can't wait till i get mine....
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Old 11th March 2006   #16
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Default Re: D200 IR Test

Hi there,

Thanks for sharing.
Really tempted to get a D200 soon.
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Old 11th March 2006   #17
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Default Re: D200 IR Test

The following imperfection was observed:

Refer to pic below

Unknown over explosure at middle of the shot was observed, appeared on most of the shots.

If you already have the setup, please post the shots here for further discussion.

Thanks
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Old 12th March 2006   #18
gooseberry
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Default Re: D200 IR Test

That's a hotspot. Certain lenses will cause hotspots due to internal reflection from the sensor back into the lens and then back on the sensor again. Which lens are you using for this shot ? The hotspot will be more pronounced when you stop down the lens - opening up the lens to near max. aperture will reduce it. Some lenses won't have the hotspot.
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Old 12th March 2006   #19
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Default Re: D200 IR Test

this could be the hotspot due to the lens you use
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Old 12th March 2006   #20
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Default Re: D200 IR Test

Originally Posted by jc1
The following imperfection was observed:

Refer to pic below

Unknown over explosure at middle of the shot was observed, appeared on most of the shots.

If you already have the setup, please post the shots here for further discussion.

Thanks
That's a hotspot...

What lens were you using? Was it a Nikon 17-55? Or another lens with a 17mm focal length?

The f/6.3 aperture isn't really small, but some lenses are more prone to hotspots than others. I haven't had any noticible hotspots using the Nikon 17-55 or the Tokina 17mm f/3.5 even at small apertures but have had issues with the Tokina 12-24, Sigma 10-20 and a few others, even at apertures as large as f/5.6. They work fine when the lens is wide open though.

Cheers,
Matt
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