NikonGear'23
Gear Talk => Camera Talk => Topic started by: John Geerts on March 11, 2025, 19:15:36
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I acquired a nice Nikon D1x. It's output gives however surprising results.
Here are some examples shot with the Nikkor AF-D 50/1.4
The last one was processed in B&W, apparantly that works pretty good.
Does anyone have an idea why this camera contains somehow a green filter?
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Must be a way to correct the colour array, i wonder?
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Must be a way to correct the colour array, i wonder?
I tried the Channel mixer but ended up in B&W
Not Adapted in Camera RAW - Standard Profile used.
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Have you tried to run the D1X NEFs through NX Studio?
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Have you tried to run the D1X NEFs through NX Studio?
Not yet. Used ACR and Photoshop
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My wild guess is that the data on the red channel is lost or very weak.
Have you checked the RGB histogram in ACR?
Nevertheless, I kind of like this pleasant green tone.
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Thanks Akira. I like the images too.
ACR shows that all colours are recorded. Presumable a green filter has been inserted inside the camera for the use of Black-and-White photography.
For recording the correct exposure two stops are required which also assumes a green filter must be in place:
"When photographing foliage in black and white, a green filter is used almost exclusively."
"It lightens green foliage, which is particularly important with dark green leaves which can record very dark without a filter. It therefore gives a more natural, lighter feel to the photograph."
"Although limited in application, it can be the perfect solution for many photographs. A typical green filter has a filter factor of 2 (the manufacturer will supply the exact factor with the filter) while most cameras with TTL metering will be able to correct automatically for the filter factor." according to Ilfordphoto. https://www.ilfordphoto.com/colour-filters/?___store=ilford_brochure&___from_store=ilford_uk (https://www.ilfordphoto.com/colour-filters/?___store=ilford_brochure&___from_store=ilford_uk)
The rubber of the camera show some signs of being removed at the spots for opening the camera. Life Pixel published a tutorial on the Net: https://www.lifepixel.com/tutorials/infrared-diy-tutorials/nikon-d1x (https://www.lifepixel.com/tutorials/infrared-diy-tutorials/nikon-d1x)
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A portrait in the green recording and one transferred to B&W
In a Leica forum: "When large format B&W film was the dominant media for portraiture, green filters were often used because they worked well with caucasian skin. The shift to smaller formats, the rise of digital photography and a more diverse population sitting for portraits left the green filter on the shelf. As sales declined, fewer manufactures offered them. Leica still offers them and Tiffen has them in limited sizes. ". https://www.l-camera-forum.com/topic/380568-green-filters-not-popular/ (https://www.l-camera-forum.com/topic/380568-green-filters-not-popular/)
"Green film is always useful for portraits. Always. Darkens lips, gives a proper impact to the eyes. There's nothing worst than very light lips, makes people look sick to death."
"Green filter is a very well kept secret."
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Does the camera focus correctly to infinity?
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Thanks Akira. I like the images too.
ACR shows that all colours are recorded. Presumable a green filter has been inserted inside the camera for the use of Black-and-White photography.
For recording the correct exposure two stops are required which also assumes a green filter must be in place:
"When photographing foliage in black and white, a green filter is used almost exclusively."
"It lightens green foliage, which is particularly important with dark green leaves which can record very dark without a filter. It therefore gives a more natural, lighter feel to the photograph."
"Although limited in application, it can be the perfect solution for many photographs. A typical green filter has a filter factor of 2 (the manufacturer will supply the exact factor with the filter) while most cameras with TTL metering will be able to correct automatically for the filter factor." according to Ilfordphoto. https://www.ilfordphoto.com/colour-filters/?___store=ilford_brochure&___from_store=ilford_uk (https://www.ilfordphoto.com/colour-filters/?___store=ilford_brochure&___from_store=ilford_uk)
The rubber of the camera show some signs of being removed at the spots for opening the camera. Life Pixel published a tutorial on the Net: https://www.lifepixel.com/tutorials/infrared-diy-tutorials/nikon-d1x (https://www.lifepixel.com/tutorials/infrared-diy-tutorials/nikon-d1x)
Hmm... Now I wonder how much D1X suffered from the IR contamination? The green filter may be added to suppress IR that might affect the overall rendition of the B&W image.
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Does the camera focus correctly to infinity?
Yes it does.
Just took an image, but now more colours are introduced ;)
I just noticed, I changed the white balance to PRE.
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Now with the White Balance set to AUTO
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Looks strange,,, Please try resetting the camera settings: Hold down the function button and the checkard board button for 2 seconds it resets back to factory default!
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Now with the White Balance set to AUTO
Apparently, the red signals are rendered correctly...
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Looks strange,,, Please try resetting the camera settings: Hold down the function button and the checkard board button for 2 seconds it resets back to factory default!
Thanks for the tip. No result. Still the same green filter output
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The 'standard' green photograph (1) seems to contain more details than the White balance corrected one (2) (pre defined based on photo)
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Both transferred to black-white in Photoshop based on the green white balance (3) and the adapted White Balance (4)
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What about updating the firmware for the camera?
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Sorry to say, there could be the hardware problem like significant loss of gain on the red channel for some unknown reason....
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What about updating the firmware for the camera?
Firmware 1.1
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Sorry to say, there could be the hardware problem like significant loss of gain on the red channel for some unknown reason....
I think it's not a hardware problem. The camera functions, apart from the green filter, perfectly.
I think some-one opened the camera and inserted a green filter in front of the sensor. Probably to use the D1x for Black-and-white photography. a l
In camera it's possible to change the fileoutput to Tiff and change the B&W processing in which case you get a large file of 16mb and B&W only. But in camera you see the B&W effect.
Other option is to do the B&W processing in Photoshop and keep the color raw. (NEF)
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Couldn’t you see the green filter by looking at the sensor?
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Couldn’t you see the green filter by looking at the sensor?
Thanks for the suggestion Bruno.
Had to use the AC/Adapter to open the mirror. Compared the 'green' sensor with another 'normal' D1x.
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The green outcome.
At a light back-ground.
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With the AF-S 300/4
First one: White balance corrected basically eliminating green and increasing some yello
Second: Auto BW in Photo-shop
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Both with AF-S 300/4
First one: Uncorrected White Balance
Second One: In camera set to TIFF and B&W processing