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#1 |
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Join Date: Jan 2005
Location: Bt Panjang
Posts: 1,108
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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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#2 | |
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Join Date: Feb 2006
Location: N 01.41761 / E103.83330
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#3 |
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Moderator
Join Date: Mar 2003
Location: Singapore
Posts: 4,651
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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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#4 | |
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Location: Bt Panjang
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#5 | |
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Long exposure time! Still testing. Cheers |
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#6 |
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Join Date: Jan 2005
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Another test shot.
D200 with R72 filter, ISO320 F/6.3 8sec ![]() |
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#7 | |
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Join Date: Apr 2004
Location: East
Posts: 1,252
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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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#8 |
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Senior Member
Join Date: Jan 2002
Location: Singapore
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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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#9 |
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Senior Member
Join Date: Mar 2004
Location: Central West
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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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#10 | |
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Senior Member
Join Date: Jan 2002
Location: Singapore
Posts: 3,862
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Maybe you are right. I will try it out when I get back my D200.
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#11 | |
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Location: Bt Panjang
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I did a slightly different approach. Thanks |
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#12 |
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Join Date: Jan 2005
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deadpixel & Dennis,
I shall discuss my method and some problem which I have observed later. Thanks. |
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#13 |
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Join Date: Jan 2005
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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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#14 |
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Member
Join Date: Jan 2005
Location: Bt Panjang
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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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#15 |
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Senior Member
Join Date: Aug 2004
Posts: 1,259
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GREAT JOB!!! can't wait till i get mine.... ![]() |
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#16 |
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Moderator
Join Date: Jul 2005
Location: Hougang, Sengkang
Posts: 5,347
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Hi there,
Thanks for sharing. Really tempted to get a D200 soon.
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莫问前程有愧,只求今生无悔. Time pasts, Places changed, Beauty faded, what is left are Photos of Memories… |
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#17 |
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Join Date: Jan 2005
Location: Bt Panjang
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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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#18 |
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Senior Member
Join Date: Mar 2004
Location: Central West
Posts: 1,913
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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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#19 |
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Senior Member
Join Date: Dec 2004
Location: Punggol Central
Posts: 1,015
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this could be the hotspot due to the lens you use
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#20 | |
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Member
Join Date: Apr 2004
Location: East
Posts: 1,252
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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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