Star Target Back Focus Test Chart SineImage Optical focus YE0220 For Camera Lenses

Brand Name:SineImage

Certification:CE&RoHS&TUV&FCC&ISO9001

Model Number:YE0220

Minimum Order Quantity:1pc

Delivery Time:within 3-5 working days after payment confirmed

Payment Terms:T/T,Paypal

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Shenzhen ThreeNH Technology Co., Ltd.

Active Member

Location: Shenzhen Guangdong China

Address: F/6, Block 5B, Skyworth Inno Valley, Tangtou 1st Road, Shiyan, Baoan District, Shenzhen, China.

Supplier`s last login times: within 32 hours

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Product Details

SineImage YE0220 Back Focus Test Chart for Camera Lenses

Model	YE0220
Type	Reflectance/Transparent
Format	Custom Designs
Ratio	4:3
Material	Film or HD photographic paper

The Sineimage YE0220 back focus test chart is designed for adjustment of camera lenses and checking back focal distance. It consists of a large Siemens star in the center an four smaller ones positioned in the corners of the test chart.

With the aid of a low transmission filter and by means of low level lighting make sure that the camera is not over modulated with the aperture in the open position.

a) Optical focus: Adjust focus at shortest focal length.

b) Back focal distance (lens): Adjust focus at shortest focal length by regulating lens mechanically with adjustment screw and optimize alternatively with a).

c) Back focal distance (pick-up tubes): If focus varies from channel to channel between greatest and shortest focal length, the individual pick-up tubes must be adjusted mechanically in the optical axis.

1. Select white channel. Set optical focus at greatest focal length. With shortest focal length and divergent f ocus adjust the pick-up tube in W-channel until optimum focus is achieved. If necessary optimize by alternating with optical focus adjustment.

2. With unchanged optical focus adjustment and shortest focal length adjust the red and blue pick-up tube until optimum focus is achieved. Image focus (focus adjustment) is maintained at all focal lengths (zoomin) and constant distance from object by means of back focal distance adjustment.

Remark: We support Any customized test charts only if you have high resolution image and size.

Frequently Asked Questions:

1. Are you a trader or a manufacturer?
Answer: We 3nh is a manufacturer, we research and develop, design and produce, market and sell color measuring instruments, gloss meters and camera test charts. Our company and factory are located in Shenzhen which is famous for manufacturing. Welcome to visit us!
2. What's your main market.
Answer: We sell to the global market.
3. How long is your delivery time?
Answer: Generally it is 3-7 working days after the payment confirmed.
4. What is your payment terms?
Answer: The payment term is 100% T/T in advance.
5. What's your minimum order quantity (MOQ)?
Answer: Our MOQ is 1 set. If you order more than 3 sets, we can provide discount.

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About Us:

Company Profile

3nh, Tilo and Sine image are all registered brands of the company. Shenzhen ThreeNH Technology Co., Ltd. (www.3nh.com) is a national high-tech enterprise. It is a large brand enterprise integrated by the famous trademark "3nh" and "Tilo" in the color measurement industry in terms of right time, right place, and right people. The company's source enterprise was founded in 1998. For a long time, it has been specialized in R & D, production, sales and service in the color management field.

3nh is a large-scale manufacturer of spectrophotometer color difference meter in China. Its main products series include: YS60 series benchtop spectrophotoemter, TS series grating spectrophotometer, YS series grating spectrophotometer (portable / desktop), NS series handheld spectrophotometer, NH series portable colorimeter, NR series handheld colorimeter, CR series color reader colorimeter, and YH series color haze meter, as well as YG and NHG/HG series gloss meter; Tilo brand light cabinets has a large R & D, production and sales base, and its production and sales is always in the leader for a long time; Sine Image is one brand of the company to offer image test chart, test software and solutions, including the independent R & D and production high-definition iso12233 resolution test chart and other full series of test chart, standard light sources, test software and test solutions etc. Sine Image has a professional image test laboratory. And 3nh also has many domestic innovative technologies for gloss meter, with high, medium and low gloss automatic switching function. It includes large screen economic HG series, large touch screen NHG series with glossy board calibrated function, economic digital YG series.

The company is also the authorized agent of Philips and Sylvania. All products are widely used in plastic electronics, paint and ink, textile and dyeing, printing paper, food, medicine, cosmetics, scientific research, schools, laboratories, optical image testing ,and other fields. The company has gathered a large number of highly talented professionals in the industry, applied for many innovative patents, and has the core technology and intellectual property rights of 3nh, Tilo and Sine image products.

ThreeNH is a group, including four companies as following:

Shenzhen 3nh Technology Co., Ltd

Shenzhen Sine Image Technology Co., Ltd

Shenzhen Tilo Technology Co., Ltd
COLORCONTROLLER HK LIMITED

3nh(ThreeNH) & TILO have 8 product lines to manufacture different kinds of models Spectrophotometer,Colorimeter,Gloss Meter,Color Light Box,Resolution Test Chart with high quality and high accuracy.

Technological innovation is the source for 3nh(ThreeNH) & TILO development. 3nh(ThreeNH) & TILO have a high educated R&D team striving for perfection, advanced technology and teamwork.

Quality is a very important part of our company, and every instrument of 3nh(ThreeNH) & TILO will be checked by our QC department. Only QC pass, all instruments will go to warehouse for shipment.

3nh adheres to “people-oriented, customer first, technological innovation, sustainable development” business philosophy to meet customer demand continuously, to create value for customers and to achieve win-win situation and common development.

Service Concept:

* Focus on color for 20 years to make it better.

* Integrity wins the world.

* Continuous research and development innovation for excellence.

* Constantly create value for customers.