http://item.taobao.com/item.htm?spm=0.0.0.0.2WZ1Jz&id=25507264284括苍天文是 ATIK CCD 中国区总代理 ，销售ATIK各种产品的销售和售后服务。ATIK官方网站：
http://www.atik-cameras.com/490EX需要预订，交货时间1-3个月， 有黑白和彩色2款，价格一样，拍下请说明。
Quick Overview
The Atik 490EX CCD Camera utilizes a monochrome Sony ICX814 EXview HAD sensor with a 3.69x3.69 μm pixel size.
The highest resolution Atik camera to date, and one of the most flexible.
This Atik 490EX Monochrome CCD Camera is an ideal match not only for Hyperstar systems, but also most small to midsize telescopes used by astrophotographers.
Atik's highly-acclaimed Capture software is included for camera control and data acquisition, and plug-ins are included to allow use with Astroart and Maxim DL.
This Atik 490EX Color CCD Camera has an outstanding Quantum Efficiency, very low noise and excellent thermal management.
Fully supports 1.25" filters down to f/2.
CCD参数字：
ATIK 490EX Monochrome CCD Camera
The Atik 490EX is the highest resolution Atik to date, and one of the most flexible ones. Featuring the latest generation Sony™ EXview HAD CCD II™ technology in an area over twice as large than before, this camera has an outstanding Quantum Efficiency, very low noise and excellent thermal management. This model is an ideal match not only for Hyperstar systems, but also most small to midsize telescopes used by astrophotographers. It’s excellent sensitivity and the possibility of binning while maintaining high pixel counts, makes it one of the best cameras for deep-sky astrophotography, with unrivalled flexibility.
The Atik 490EX fully supports 1.25" filters down to f/2, so you won't need to replace any of your current investment in wheel or filters. This is an added advantage when looking to invest in a CCD camera that may go through multiple telescopes.
The Atik-4 Series cameras are a development of the renowned 3-Series cameras, featuring better cooling and narrower body. They benefit from setpoint cooling to make taking matching dark frames a snap, and simple 12V power requirement to facilitate field operation. The impressive sensitivity, great cooling and narrow profile, make the Atik Series 4 outstanding CCD cameras to use on modern telescopes, including Hyperstar/Fastar systems.
ATIK 490EX Monochrome CCD Camera Specifications...
Sensor Type: CCD - Sony ICX814ALG
Horizontal Resolution: 3380 pixels
Vertical Resolution: 2704 pixels
Pixel Size: 3.69 µm x 3.69 µm
ADC: 16-bit
Readout Noise: 5e- typical value
Interface: Mini-USB 2.0 High Speed
Power: 12v DC 1A
Maximum Exposure Length: Unlimited
Minimum Exposure Length: 1/1000 s
Cooling: Thermoelectric set point with max ΔT=-25°C
Backfocus: 13mm
Weight: 14.1 oz.
ATIK Product Number: 490M
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