Watercraft Workshop CCD/CMOS infrared low-pass filter infrared filter
It is used for infrared camera to change camera infrared photography.
The comparison between the infrared filter before the CCD/CMOS and the filter before the lens:
1. Add a filter in front of the lens, the viewfinder will become darker, the shutter speed will be reduced, and even a tripod can only be used. A filter is added before the CCD/CMOS, which does not affect the brightness of the viewfinder, can increase the shutter speed, and can be handheld to shoot.
Buyer notice:Please check the ICF lens before the CCD first, and then decide to buy it. It is best to choose an idle camera to change it. A camera changed to infrared photography can only be used exclusively for infrared photography, and cannot take pictures with normal colors.
Size check: Please check after disassembling the machine by the buyer（Because the measuring method and judging size of each modified robot are different, for example, we only need to cover the CCD smaller than the frame, and some people like to have the same size as the ICF.）. Usually as long as it can cover the bottomCCD/CMOS, and the upper compression frame can be pressed, and the larger size can be used normally.
If your camera is above the size or the wavelength is not available, you can place an order,The processing cycle is about 15-30 days.
If you have limited ability to do it yourself, you can call the camera repairer to modify it.（Or leave it to us for modification, there may be dust, not recommended）.
There are risks in the modification of the machine, and the buyer is at his own risk. The seller is not responsible for the damage caused by the modification. Please purchase and install carefully.
principle:
All digital cameras can perform infrared photography, because the ICF lens in front of the CCD is to cut off infrared rays (no infrared lens in the world can cut off cleanly, so as long as there is enough exposure and combined with long-term exposure, infrared photography can still be performed. However, the exposure is really slow, so the hands-on party will remove the ICF and install the infrared lens for infrared photography, so that the later exposure will significantly increase the EV value of more than 7-22 (depending on different models). It can be hand-held exposure. Please note that the SLR is not LCD The viewfinder must be corrected for the rear top focus, or the IR focus mark of the old manual lens must be used for rest. Non-professional and non-super enthusiasts do not need to buy it, and the principle cannot be explained in a moment.
The following is a photo taken with a 680nm filter:
How to set the white balance:
We can know what is white and what is black. But the camera doesn’t know, the machine’s recognition of colors is expressed in numbers, such as RGB（0-255）,（Just for example, the color is not represented by a number, it is 3, here is just to make it easy for everyone to understand the white balance）255 Represents white, 125 is green, 0 is black, and the difference between white and black is 255. Why is 255 white? Because it was set by people?that’s right. The white of the machine is only relative, we set the white balance to tell the machine what color is white. If we tell the machine that white is 230, then white and orange are directly different by 130, and the machine will use white as the base point 230-130=100, then it will display the orange we see as the color of 100 (orange）Up!
It can be seen that we set different colors as white balance, and the colors of the pictures obtained are different! This is white balance! The succinct point is: what color you set as white balance, and what color is displayed as white in the pictures taken by your camera.
So when we use the infrared lens, in order to make the photographed leaves are white, we photograph the green things, so that it covers the surface of the picture, and then use the green picture as the white balance.
Two WB white balance definition methods:
1. Before shooting, fill the lens with green objects in the sun and use the camera''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s WBM function to customize it.
2. Shoot in raw format, re-adjust the WB by clicking on the "green" object in the picture.
If the customized WB seems to be inaccurate after the film is released, and there is still a faint red haze in the photo, press the image in ps ——adjust——match color——neutralize and swap Channel and auto contrast, the color is already very satisfactory.
After adjusting the raw format, and then swapping the channel and automatic color scale, the color seems to be lost a lot, which is not my favorite style.
Methods 1&2 have the possibility that WB cannot be accurately defined. I still like the former more, hehe .
Please visit the official website of Bresson for the modification tutorial. If you have limited ability to do it yourself, you can ask the master who repairs the camera to modify it.