4.0X, 35mm Full Frame M58-Mount Telecentric Lenses with Coaxial Illumination Port, Iris Adjustable, BFL Adjustable | DTCA35F COOLENS®

Model NO.    :


•For 35mm Full Frame, 65MP Sensor, 8K 5μm Line Scan Camera
•Built-in Highly Uniform Coaxial Illumination System
•Ideal for High-Precision Defect Inspection in the Semiconductor Industry
•Magnification(x) 4.0

Model NO. DTCA35F-11C-G-M58-ALV3 Magnification(x) 4.00
Object Field of View (Φmm) 11 Working Distance (mm) 60
Max Sensor Size (Φmm) 44 Best Aperture (F/#) 32
Telecentricity typical (max) (deg) <0.02 Distortion typical(max) (%) <0.02
MTF30 (lp/mm) 90-32 Depth of Field (mm) 0.06-0.16
Length of I/O (mm) 437±1 Mount M58
Length(mm) 365.4 Weight(kg) 3.3
Coaxial Illumination Port Option Yes Iris Adjustable Yes
Back Focal Length Adjustable YES
Field of View (mm × mm) GMAX3265(29.9x22.4) 7.5x5.6
CMV50000(36.43x27.62) 9.1x6.9


Comparison of Parameters

Higher NA, Bigger FOV, Longer WD
Key Specifications
Product COOLENS® Microscopic Objective COOLENS® Microscopic Objective COOLENS®
DTCA-35F 95mm Series DTCA-35F 95mm Series DTCA-35F
Magnification 7.5 7.5 5 5 4 3 2 1
NA 0.21 0.21 0.19 0.14 0.18 0.17 0.125 0.083
FOV(φmm) 5.87 3.2 8.8 4.8 11 14.67 22 44
WD(mm) 60 35 60 34 60 60 100 102


Kindly note that the best resolution and maximum depth of field specified in the parameters are not achieved under the same aperture size conditions. As the aperture size becomes smaller (larger aperture values), the hyperfocal distance becomes shorter, and the DoF becomes larger.

Light Transmission

Our lenses' best resolution generally corresponds to 50% of the maximum depth of field we specify. The values in the parameters represent separate theoretical optimal values, and the best depth of field value is based on software export reference.

During the purchase, if you have specific requirements for depth of field and best resolution, please let us know, and our laboratory can offer the optimal solution.

By the way, considering the lens aperture is fixed and can not be adjusted after shipping out, it is necessary to confirm the required aperture size before placing the order.

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