The so-called "gelatin filter" lighting filter is a very fine Polyester (PET - Polyethylene terephthalate) film, coated on both surfaces with a very high quality dye. The dye is created in such a way as to make the filter as durable as possible in terms of resistance to light and heat, also providing flame retardant properties.
On average, a polyester light filter withstands a maximum temperature of 180° although this can vary depending on the color, while the HT polycarbonate filter withstands up to 230°. The further away the filter is from the lamp, the less heat it will receive and therefore its life will be longer.
Light filters are divided into different types and are marked with standard numbering.
Each filter has a percentage of light transmission and is indicated for each code, the higher it is, the more light passes through the filter.
Thickness is indicated in thousandths of an inch (mil) and conversion in microns (μ). A standard filter is generally 76.2 microns thick.
On average, a polyester light filter withstands a maximum temperature of 180° although this can vary depending on the color, while the HT polycarbonate filter withstands up to 230°. The further away the filter is from the lamp, the less heat it will receive and therefore its life will be longer.
Light filters are divided into different types and are marked with standard numbering.
Each filter has a percentage of light transmission and is indicated for each code, the higher it is, the more light passes through the filter.
Thickness is indicated in thousandths of an inch (mil) and conversion in microns (μ). A standard filter is generally 76.2 microns thick.
If you want to intervene exclusively on the intensity of the light, you can use the classic Neutral Filters or those specific for the LED Neutral Density LEDs which reduce the intensity of the light without color variation.
The classic Conversion Filters or the specific ones for the LED Warm LEDs convert daylight into tungsten light, i.e. they change the temperature of the light towards yellow-orange (warming).
There are various levels of conversion. We start from LED Filter 809, to convert 300K, to reach 287 by converting 4.353K.
In the architectural field it is possible to immediately obtain a natural and satisfying result using a light conversion.
Worth highlighting is the Warm Amber LED filter which, having a thickness of 180 microns, more than double that of a normal light filter, is more long-lasting and solves fading problems with the use of LED lighting .
There are various levels of conversion. We start from LED Filter 809, to convert 300K, to reach 287 by converting 4.353K.
In the architectural field it is possible to immediately obtain a natural and satisfying result using a light conversion.
Scale of traditional converters:
| Code | Description | Conversion | Extras |
|---|---|---|---|
| 444 | 1/8 C.T. Straw | 800k | Shade of yellow |
| 223 | 1/8 C.T. Orange | 950k | |
| 443 | 1/4 C.T. Straw | 1,400k | Shade of yellow |
| 206 | 1/4 C.T. Orange | 1,900k | |
| 442 | 1/2 C.T. Straw | 2,200k | Shade of yellow |
| 205 | 1/2 C.T. Orange | 2,700k | |
| 285 | 3/4 C.T. Orange | 2,900k | |
| 204 | Full C.T. Orange | 3,300k | |
| 604 | Full C.T. Eight Five | 3,300k | Shade of red |
| 441 | Full C.T. Straw | 3,300k | Shade of yellow |
| 286 | 1.5 C.T. Orange | 3.993k | |
| 208 | Full C.T. Orange + .6ND | 3,300k | .6 N.D. (2 stops) |
| 207 | Full C.T. Orange + .3ND | 3,300k | .3 N.D. (1 stop) |
| 287 | Double C.T. Orange | 4.353k |
LED converter scale:
| Code | Description | Conversion | Extras |
|---|---|---|---|
| 809 | 809 Warm Amber 8 | 300k | |
| 814 | 814 Warm Amber 9 (R31) | 400k | |
| 808 | 808 Warm Amber 6 | 500k | |
| 807 | 807 Warm Amber 4 | 1000k | |
| 813 | 813 Warm Amber 5 (O32) | 1100k | |
| 806 | 806 Warm Amber 2 | 2,500k | |
| 821 | 821 UV Blue Blocker | Blocks UV rays and blue light |
Worth highlighting is the Warm Amber LED filter which, having a thickness of 180 microns, more than double that of a normal light filter, is more long-lasting and solves fading problems with the use of LED lighting .
The classic Conversion Filters or the specific ones for the LED LED Cool are the filters that convert tungsten light into daylight, i.e. they change the temperature of the light towards blue-white (cooling).
There are various levels of conversion. We start from 218, to convert the minimum possible (200K) to reach 200 by converting 22,800K.
There are various levels of conversion. We start from 218, to convert the minimum possible (200K) to reach 200 by converting 22,800K.
Here is the scale of the converters:
| Code | Description | Conversion |
|---|---|---|
| 218 | Eighth C.T. Blue | 200k |
| 203 | Quarter C.T. Blue | 400k |
| 202 | Half C.T. Blue | 1.100k |
| 281 | Three Quarter C.T. Blue | 1,800k |
| 201 | Full C.T. Blue | 2,500k |
| 283 | One and a Half C.T. Blue | 5.688k |
| 200 | Double C.T. Blue | 22,800k |
The scale of LED converters is very simple, starting from light cooling of the 820 Cool Blue 10 up to the 818 Cool Blue 6.
| Code | Description | Conversion |
|---|---|---|
| 820 | Cool Blue 10 | Long-lasting light filter used to slightly cool the color of warm white LEDs. |
| 819 | Cool Blue 8 | Long-lasting light filter used to slightly cool the color of warm white LEDs so they appear whiter. |
| 818 | Cool Blue 6 | Long-lasting light filter used to cool the color of warm white LEDs so they appear whiter. |
On average, a polyester light filter withstands a maximum temperature of 180° although this can vary depending on the color, while the HT polycarbonate filter withstands up to 230°. The further away the filter is from the lamp, the less heat it will receive and therefore its life will be longer.
To overcome the problem of non-uniform fading with the use of LED lighting, a special filter was designed which ensures a longer life compared to traditional filters.
Extensive testing*shows that, on many LED lamps commonly available on the market today, LED filters offer 85% higher efficiency for up to 20 months after installation. Virtually no fading after 30 hours and maintenance of at least 85% effectiveness after 20 months thanks also to the use of special dyes.
LED filters, in addition to being more durable than traditional filters, are also more robust having a thickness of 180 microns which is more than double that of a normal filter. This makes the filters not only more durable but also easier to use.
To overcome the problem of non-uniform fading with the use of LED lighting, a special filter was designed which ensures a longer life compared to traditional filters.
Extensive testing*shows that, on many LED lamps commonly available on the market today, LED filters offer 85% higher efficiency for up to 20 months after installation. Virtually no fading after 30 hours and maintenance of at least 85% effectiveness after 20 months thanks also to the use of special dyes.
LED filters, in addition to being more durable than traditional filters, are also more robust having a thickness of 180 microns which is more than double that of a normal filter. This makes the filters not only more durable but also easier to use.
* Test data based on continuous lighting for 11 hours per day for 20 months at a distance of 1-2 cm between LED chip and filter. The average reduction in efficiency across all lamps tested was 12%. Performance may vary based on individual applications.
They are more or less transparent, each filter has a percentage of light transmission and is indicated for each code, the higher it is, the more light passes through the filter.
The C-Tube light filters, supplied in tubular rolls suitable for T5, T8 and T12 fluorescent tubes, create a very pleasant and cost-effective light.
This type of filters are specifically designed for use with fluorescent tubes and use UV resistant dyes keeping the colors bright for a long time, when compared to other filters.
This type of filters are specifically designed for use with fluorescent tubes and use UV resistant dyes keeping the colors bright for a long time, when compared to other filters.
This spectral power distribution curve is representative of a typical cool white LED used today.
The numbers in the horizontal axis of the diagram indicate the wavelength in nanometers.
It practically illustrates the pronounced peak of blue energy and the disproportionate yellow-green concentration.
LED filters target one or both of these areas and therefore can improve the quality of light for a more pleasant appearance.
The numbers in the horizontal axis of the diagram indicate the wavelength in nanometers.
It practically illustrates the pronounced peak of blue energy and the disproportionate yellow-green concentration.
LED filters target one or both of these areas and therefore can improve the quality of light for a more pleasant appearance.
One of the classic problems of LED light.
The LED illuminates the flesh, making it full of blue and, above all, yellow-green tones.
Surely you have read about some products on the market, dedicated to food banks and butchers, which try to solve this problem. Unfortunately, an optimal result is not achieved with these products.
The truth is that you shouldn't use red or pink to color meat. The result will not be natural and, instead of improving, the situation will worsen.
LED filters have been designed to improve, correct and soften LED light.
When you want to emphasize the color of the flesh or skin, you need to correct the pronounced peak of blue energy and the disproportionate yellow-green concentration, which we commonly find in an LED, using LED Minus Green which are pink to the eye but are not pink colored filters but rather technical correction filters.
The LED illuminates the flesh, making it full of blue and, above all, yellow-green tones.
Surely you have read about some products on the market, dedicated to food banks and butchers, which try to solve this problem. Unfortunately, an optimal result is not achieved with these products.
The truth is that you shouldn't use red or pink to color meat. The result will not be natural and, instead of improving, the situation will worsen.
LED filters have been designed to improve, correct and soften LED light.
When you want to emphasize the color of the flesh or skin, you need to correct the pronounced peak of blue energy and the disproportionate yellow-green concentration, which we commonly find in an LED, using LED Minus Green which are pink to the eye but are not pink colored filters but rather technical correction filters.