A Neutral Density filter allows a photographer to control the exposure in an image very easily. The filter stops light reaching the camera sensor, therefore allowing us to leave the camera with a higher aperture for a longer amount of time.
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Chinashipping port:
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T/T Payment, Western UnionUni Optics’s neutral-density filter is a filter that reduces or modifies the intensity of all wavelengths, or colors, of light equally, giving no changes in hue of color rendition.
1、What are neutral density filters used for?
A Neutral Density filter allows a photographer to control the exposure in an image very easily. The filter stops light reaching the camera sensor, therefore allowing us to leave the camera with a higher aperture for a longer amount of time.
2、What is the purpose of a neutral density filter?
The purpose of a standard photographic neutral-density filter is to reduce the amount of light entering the lens. Doing so allows the photographer to select combinations of aperture, exposure time and sensor sensitivity that would otherwise produce overexposed pictures.
3、Can you stack lens filters?
Yes. Light will bounce back and forth between your filters, and leave haze and flare on your photos. If you must stack filters, try not to shoot towards any strong light sources. Personally I always use UV filters to protect my lens.
Common specification
Dimensional Tolerance:±0.5mm
Surface Quality: 80-50 or better
Surface figure: 4-6 λ or better
Coating: Optional
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Machine Vision Bandpass Filters
A band pass filter is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range, and it’s used to selectively transmit a portion of the spectrum while rejecting all other wavelengths.
Longpass Filters for Vision inspection Apllication
Longpass filters are ideal for a variety of applications, such as gas monitoring, temperature, sensing, thermal imaging and motion sensing, etc. Longpass filters block shorter wavelengths and transmit longer wavelengths. Blocking can be from reflectance, absorption or a combination. Transmission in the pass band can be enhanced with an antireflection coating on the second surface.
High Precision Colored Glass Filters
High Precision Colored Glass Filters
UN-TFA5020X-12MP
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Taurus Series 4/3″ Format FA Lens(12MP) |
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Model |
UN-TFA5020X-12MP |
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Focal length |
50mm |
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Aperture |
F2.0-F22 |
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Image Format |
4/3″(23mm) |
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Mount |
C |
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Field Angle D x H x V (°) |
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4/3″ |
1″ |
1/2" |
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D |
26.0° |
18.3° |
9.2° |
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H |
21.0° |
14.7° |
7.3° |
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V |
15.8° |
11.1° |
5.6° |
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Optical Distortion |
-0.13%@ y=11.5mm |
-0.05%@ y=8.0mm |
-0.01%@ y=4.0mm |
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M. O. D. |
0.3m |
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Dimension |
Φ48*67mm |
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Back Focal Length |
20mm |
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Design Wavelength |
420~1000nm |
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Operation |
Manual Iris |
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Manual Focus |
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Filter Thread |
M46×P0.75 |
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Weight |
219g |
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Work Temperature |
-20℃～+60℃ |
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UN-TFA1218C
Product Features:
1. Compatible for 2/3'' Format Sensor
2. Ultra-compact Design
3. Ultra Low Distortion
4. High Relative Illumination
5. High Cost Performance
6. Supply with Focus and Iris locking screws.
Product information: Custom designs are available upon request.
Download the datasheet of UN-TFA1218C
UN-TFA1628C-10MP
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Taurus Series Compact FA Lens(10MP) |
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Model |
UN-TFA1628C-10MP |
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Focal length |
16mm |
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Aperture |
F2.8-16 |
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Image Format |
2/3″ |
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Mount |
C |
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Field Angle D x H x V (°) |
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2/3″ |
1/2″ |
1/3" |
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D |
37.9 |
28.1° |
21.2° |
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H |
30.7° |
22.6° |
17.0° |
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V |
23.3° |
17.1° |
12.8° |
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Optical Distortion |
0.29%@y=5.5mm |
0.15%@y=4.0mm |
0.08%@y=3.0mm |
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M. O. D. |
0.15m~∞ |
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Dimension |
Φ29*41.50mm |
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Flange BFL |
17.526mm |
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Back Focal Length |
8.63mm |
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Operation |
Manual Iris |
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Manual Focus |
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Design Wavelength |
420-1000nm |
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Filter Thread |
M27xP0.5 |
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UN-ALS50J01
Product Features:
· Developed for 32mm big frame sensor
· Large Aperture, upto F2.4
VIS-NIR Coated Double-Concave (DCV) Lenses
UN-GSWIR1614C
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Gemini Series SWIR Lens |
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Model |
UN-GSWIR1614C |
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Focal length |
16mm |
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Aperture |
F1.4 |
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Image Format |
1″ |
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Mount |
C |
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Field Angle |
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1″ |
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D |
54° |
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H |
43.8° |
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V |
33.4° |
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Optical Distortion |
<-0.6% |
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M. O. D. |
0.3m |
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Dimension |
Φ54*63.00mm |
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Flange BFL |
17.526mm |
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Back Focal Length |
13.72mm |
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Resolution |
80lp/mm |
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Operation |
Manual Iris |
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Manual Focus |
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Design Wavelength |
900-1700nm |
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Filter Thread |
M52x0.75 |
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Machine Vision Bandpass Filters
A band pass filter is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range, and it’s used to selectively transmit a portion of the spectrum while rejecting all other wavelengths.
Tel : +86-591-86395085
Email : sales@uni-optics.com
