The CCD Astronomer

presents

Professional CCD Cameras for Astronomy
from

Logo Bitran Corporation, Japan

Bitran Camera BJ-41L

We are happy to offer professional CCD cameras from Bitran Corporation of Japan. Bitran Corporation has many years of experience in developing cooled CCD cameras for industrial and astronomical applications. Here is the manufacturers homepage, but mainly Japanese language!

Concept of Bitran BJ-50 Series CCD Camera

High quality electronics for long life, low noise and precise 16bit A/D Conversion

Regulated Peltier cooling within 0.1°C Temperature range guarantees best possible 16bit image quality with highest Signal/Noise-ratio and uniform background. This image quality is not possible with any non-cooled digital camera, especially when underexposing

For our cameras with basic RGB-pattern on sensor, always true color balance is displayed. These are the one and only TrueRGB CCD-cameras for astronomy.

Uncomplicated Control software for Microsoft Windows with optimized window for precise and quick real-time focusing

High Speed USB2.0 connection

Camera types of Bitran BJ-50 Series CCD camera

First produced camera type of BJ-40 Series was BJ-41 with SONY ICX285AL/Q CCD sensor, introduced in July 2002 by Bitran Corporation. Since then, it is the best sold astronomical CCD camera in Japan. Since year 2011 Bitran offers SONY ICX285AL/Q CCD sensor in a new camera type called BJ-51L/C!

The Flagship BJ-52L with 22mm sized Kodak sensor KAI-4022 and 4 Million pixel is preferrable for large format imaging. Monochrome BJ-52L is an amazing imager with outstanding capabilities. Please enjoy a single exposure with wonderful BJ-42L (now BJ-52L): The Moon as a single 0.03sec exposure, carefully processed.

Ausfuerliche und aktuelle Informationen auf Deutsch finden Sie bei unserem Anbieter in der Schweiz, AOKswiss.

Camera Specifications:

Camera name	BJ-51L	BJ-51C	BJ-52L	BJ-52C
Camera type	Monochrome	Basic RGB pattern	Monochrome	Basic RGB pattern
CCD sensor	Sony ICX285AL ABG	Sony ICX285AQ ABG	Kodak KAI-4022M ABG	Kodak KAI-4022CM ABG
Sensor quality	Sony standard grade with only 5-10 defective pixel, automatically corrected		Class 2, no column defects
Imaging area	8.8mm x 6.6mm		15.16mm x 15.16mm
Pixel of imaging area	1.4 Mio or 1360x1024 pixel		4 Mio or 2048x2048 pixel
Pixel size	6.45 x 6.45 micrometer		7.4 x 7.4 micrometer
Exposure times of electronic shutter	0.001s, 0.002s, 0.004s, 0.008s, 0.01s - 0.99s in 0.01s steps,1s - 1h in 0.1s steps		0.03s - 0.99s in 0.01s steps,1s - 1h in 0.1s steps
Fullframe read-out time	1s (USB 2.0)		2s (USB 2.0)
Pixel binning	2x2, 3x3, 4x4	2x2, 3x3, 4x4 (only B&W)	2x2, 3x3, 4x4	2x2, 3x3, 4x4 (only B&W)
Maximum imaging rate of center pixel field	up to 16 images per second at 256x256 pixel, up to 5 images per second at 512x512 pixel		up to 16 images per second at 256x256 pixel, up to 5 images per second at 512x512 and 2 images per second at 1024x1024 pixel
Cooling type	Single stage Peltier element, power control by software ; cooling support by water cycle possible
Minimum cooling down	-30°C below camera body temperature		-25°C below camera body temperature
Adaption / Backfocus	31.7mm (1.25") drawtube adapter with M28 filter thread, connected to camera head by C-mount thread. Backfocus 17.5mm		50.8mm (2") drawtube adapter with M48 filter thread, connected to camera head by M42 P0.75 thread. Backfocus 17.5mm
Power	DC 12V, max. power consumption 2A
Camera head size	78mm (W) x 110mm (H) 91.5mm (D) ; weight 550g		78mm (W) x 110mm (H) 120mm (D) ; weight 600g
Connection to PC	Standard High-Speed USB 2.0 cable
Supported file format	Bitran 16bit raw file format (ccd, drk, flt), FITS, TIFF, BMP
OS and Software	Control Software (only English language) works with Windows XP SP2, Vista SP1 and Windows 7. MaxIm DL interface available

For more information, please download our Manual (size 1.72 Mb as PDF).

Please have a look at some images, made by us with CCD cameras from Bitran:

Prices: Please ask for actual price.

Conditions: Each camera is produced when ordered, so delivery of CCD camera to customer takes about 3-4 weeks. Payment before delivery.

Support: You will enjoy our support based on long term experience in astronomical CCD imaging, satisfaction guaranteed!

Guarantee: Valid for One Year after delivery, standard Japanese Manufacturer's Guarantee by Bitran Corporation, Japan.

Accessories: On purpose we do not offer much accessories, but we do individual consulting. Please ask us about everything, we help as best as possible.

Notes: Although Japanese BJ camera features autoguiding, we did not implement autoguiding for English BJ Series. Manual guiding is possible. Please do not buy Japanese BJ Series CCD camera, support for Japanese BJ Series CCD camera is only valid in Japan and you cannot use Japanese BJ Series CCD camera with English software. Also, English BJ Series CCD camera cannot be sold to USA and Canada. If still Japanese or English BJ Series CCD cameras are used in USA and Canada, there is no liability, guarantee and support by Bitran Corporation, Japan and by The CCD Astronomer, Switzerland.

For more specific information, please feel free to contact us!

Our company:

The CCD Astronomer
& Jan de Lignie
Located at Zurich-Kloten, Switzerland

Email: info(at)the-ccd-astronomer.ch