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Resolution Test Charts

  • Transmissive 4:1 SFRplus Test Chart for  Light box
Transmissive 4:1 SFRplus Test Chart for  Light box

Transmissive 4:1 SFRplus Test Chart for Light box

  • Brand: IQL/Imatest
  • Model:SKU: SP740X540C1
  • Product description:
  • INQUIRY

Video introduction:

Product Details:

Measurable parameters
  1. MTF
  2. Lateral chromatic aberration
  3. distortion
  4. Color accuracy
  5. Tonal response
  6. White balance
  7. Noise
  8. Gamma
Features
  1. Make full use of the chart card space and large amount of information. Compared with the actual utilization rate of the ISO12233 test card, the actual utilization rate is only 10%, which is greatly improved.
  2. More information to analyze signal processing, such as noise reduction, sharpening
  3. Fully automatic selection
  4. Avoiding the gradation overflow caused by high contrast, increasing the exposure latitude, the accuracy and repeatability are also higher
  5. Support multiple sizes and materials
Material
  1. Matte: suitable for wide-angle lens testing, the maximum density is larger, and the details are more, but because of the surface reflection, it cannot be used for wide-angle lens testing
  2. Matte: It is recommended to test most lenses, the surface reflection is relatively uniform, the mirror reflection is very little, and its MTF extreme value is less than the matte MTF extreme value

Transmissive Reflective
Inkjet printing NO YES
Silver salt photo paper NO YES
Film material YES
NO
Chrome-plated glass material (highest precision required) YES
NO
Contrast
  1. 4:1 and ISO12233:2014 standards meet
  2. 2:1 and 10:1 can analyze nonlinear tone response
Size
Chart size 5x9 (suitable for SLR cameras with an aspect ratio of 3:2 (DSLR format) and 16:9 HDTV format) 5x7 (suitable for card cameras and mobile phones)
Extra small 8.5“×15”
8.5“×10”
Small 14“×24”
14“×20”
medium 24“×40”
24“×34”
Large 44“×60”
44“×60”
Extra large 44“×74”
44“×64”

Resolution The inkjet printed test card can reach 5cycle/mm of MTF50. Based on this, the small size of the test card will reduce the MTF value of the high-resolution camera system to the limit MTF value. The size of the card should be selected to meet the minimum focus distance of the camera. , The resolution is greater than the resolution of the sensor.
Predistortion
Level
5x7 5x9
No distortion
[0 0]
[0 0]
Distort
[0.833 1.123]
[0.833 1.375]
Distort+
[1.167 1.577]
[1.167 1.982]
Ultradistort
[1.333  2.313]
[1.333 2.958]
We do not recommend using matte test cards in wide-angle lenses or pre-distortion cards.


More about the definition of standard test card SFRplus introduction:

  1. 什么是MTF
  2. 低照广角镜头测试系统
  3. 如何选择SFRplus和eSFR测试卡

For more information, please contact: sales@colorspace.com.cn



CONTACT US

Contact: sales@colorspace.com.cn

Phone: 15817270587

Tel: 400-886-3881(周一至周五 9:00~18:00)

Email: sales@colorspace.com.cn

Add: South Building #2-1101, Lv Di Qi Hang Office Building, Hou Sha Yu, Shun Yi District, Beijing, China