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产品详情
  • 产品名称:Imatest高精度36-补丁动态范围测试图3nh可定制测试卡图案

  • 产品型号:36-补丁动态范围测试图
  • 产品厂商:赛麦吉
  • 产品价格:0
  • 折扣价格:0
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简单介绍:
高精度36-补丁动态范围测试图36-Patch Dynamic Range Test Chart 此图有36个低噪音密度补丁,密度范围是一个从约0.1密度级开始到*大3.2密度级。 此测试图被制造用于好的密度范围、低噪音、精致细节下检测高精度LVT电影录音过程。 Imatest高精度36-补丁动态范围测试图3nh可定制测试卡图案 Imatest高精度36-补丁动态范围测试图3nh可定制测试卡图案 Imatest高精度36-补丁动态范围测试图3nh可定制测试卡图案
详情介绍:

 

高精度36-补丁动态范围测试图36-Patch Dynamic Range Test Chart
此图有36个低噪音密度补丁,密度范围是一个从约0.1密度级开始到*大3.2密度级。
此测试图被制造用于好的密度范围、低噪音、精致细节下检测高精度LVT电影录音过程。

 

 

This chart has 36 low-noise density patches with density steps of approximately 0.1, for a density range of at least 3.2 (density from base to base + 3.1 minimum). A nearly circular patch arrangement ensures that vignetting has minimal effect on results.  A CSV reference file with actual densities will be supplied.  The chart has an active area of 197x235 mm (7.75x9.25 inches) on 203x254 mm (8x10 inch) film.
It also contains slanted edges in the center and corners with 4:1 contrast for measuring MTF. The edges have an MTF50 >= 16 cycles/mm, which is about 3 times better than the best inkjet charts. Registration marks make the regions easy to select. A neutral gray background helps ensure that the chart will be well-exposed in auto exposure cameras (compared to charts with black backgrounds, which are sometimes strongly overexposed).
It is supported by Stepchart, Multicharts, Multitest and can be used with the Dynamic Range postprocessor if several manual exposures are available. Dmax >= 3.4 is sufficient for camera phones and digital cameras with small pixel sizes, but high-end DSLRs generally have higher dynamic ranges (and also manual exposure), which makes them well suited for Dynamic Range.
This chart is produced with a high-precision LVT film recording process for the best possible density range, low noise, and fine detail.
LVT Targets with reference files are guaranteed to remain accurate for one year from first use. After this time the targets can be returned for re-calibration and will be returned with a new reference file.


产品购买须知
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  • 2、关于尺码

     机身和包装尺寸为手动测量,由于测量工具和测量方法不同的因素,会存在1cm误差,但是不用影响运输和使用。

  • 3、关于颜色

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  • 5、关于售后

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  • 6、关于发货

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