Dynamic Range Test Charts

Imatest 36-Patch Dynamic Range Test Chart V2

Brand：Imatest
Model：ITLDR36-V2
Product description: The Imatest Dynamic Range Test Chart V2, released in October 2025, offers enhanced accuracy for evaluating camera dynamic range, ghosting, and resolution limits. Fully supported in Imatest 25.2, this
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Product Overview

The Imatest 36-Patch Dynamic Range Test Chart V2 is a next-generation high-precision target for evaluating camera system performance under various exposure conditions.
Released in October 2025, this new version is a significant upgrade from the classic V1, fully supported by Imatest 25.2 and later (Apply for an Imatest Software Trial).
It is designed for Low (LDR), Wide (WDR), and Ultra-High Dynamic Range (UHDR) imaging systems, and is ideal for camera module testing, imaging algorithm verification, and image quality laboratory evaluation.

Produced using high-precision LVT film recording, the V2 chart offers excellent density uniformity and linearity, enabling full dynamic range analysis—from deep shadows to highlights—within a single exposure.
It can be used to measure:

· Dynamic Range

· Modulation Transfer Function (MTF)

· Noise Distribution and Signal-to-Noise Ratio (SNR)

· Ghosting and Flare Effects

· Auto-Exposure Linearity and Tone Response

Key Upgrades from Version 1

Feature	V1	V2
Software Compatibility	Imatest 3.9+	Imatest 25.2+
Patch Sequence	Traditional linear order	New patch layout minimizes stray light and ghosting
Color Patches	Limited gray and color patches	Additional color regions improve color reproduction analysis
Logarithmic Wedges	None	Added wedges on both sides for limiting resolution measurement
Dynamic Range Options	LDR / WDR / UHDR	LDR / WDR / UHDR
Dynamic Range Options	Affected by illumination uniformity	More even patch distribution, improved robustness against vignetting and exposure errors

Product Features

1. 36 high-density gray patches covering brightness levels from 50 dB to 150 dB

2. High-precision LVT film process with excellent density linearity and long-term stability

3. Anti-reflection protective coating to reduce glare and image artifacts

4. Transmissive design – to be used with high-intensity transmitted light sources (10,000 – 100,000 Lux), e.g., CS-LE005 Light Source

5. Integrated MTF test edges with 4:1 contrast for measuring MTF50

6. Calibrated density reference file (CSV) included for consistent cross-system comparison；

Technical Specifications

Parameter	Imatest 36-Patch Dynamic Range Test Chart V2
Model	ITLDR36-V2、 ITUHDR36-V2、ITWDR36-V2
Dynamic Range	LDR（50dB）/ WDR（100dB）/ UHDR（150dB）
Chart Size	Active area 197 × 235 mm (Overall 203 × 254 mm)
Material & Process	Precision LVT film with optical density calibration
Illumination Type	Transmissive (Recommended 10,000 – 100,000 Lux)
Patch Composition	36 gray patches + color regions + logarithmic wedges
MTF Capability	MTF50 ≥ 16 cycles/mm
Software Support	Imatest 25.2 and above
Optional Accessories	Acrylic frame / density reference file
Measurement Parameters	Dynamic range, gray level response, SNR, HDR performan

Version Selection Guide

Model	Dynamic Range	Recommended Application
ITLDR36-V2	50DB	Smartphones, tablets, small-pixel cameras
ITWDR36-V2	100DB	General high-quality cameras, automotive imaging
ITUHDR36-V2	150DB	Professional HDR systems, security cameras, industrial inspection

Related Resources：

1. Apply for Imatest Software Trial

2. Recommended Accessory: CS-LE005 Transmissive Light Source

For customized versions (e.g., fisheye pre-distortion compensation) or additional test solutions, contact sales@colorspace.com

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