Professional CCD Cameras for Astronomy
Logo Bitran Corporation, Japan

Bitran Camera BJ-50 type

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

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.

BJ-52L with 22mm sized Truesense 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.

NEW!! We can offer you the newest Sony Sensor ICX694 in Astronomical BJ CCD-Camera BJ-53!! And our new Flagship is BJ-54L with 16 Megapixel sensor Truesense KAI-16050!!  

New SONY ICX694 'EXviewHAD CCD II'-Sensor is the most sophisticated sensor for narrowband imaging: High sensitivity and approximately 78% QE, a lot higher than ICX285 (ca. 62% QE). Relative response of 0.9 for Hbeta/OIII and Halpha/SII is unique! Lower noise electronics gives also better SN-Ratio than with ICX285. And in the end, 6 Mio. pixel of square 4.54 micrometer size makes it perfect for large format imaging with Lenses and short focus refractors. Together with motorized filter wheel, this is the most exciting CCD imaging system for low light imaging!

Further News:

It is possible to control some motorized filter wheel with our Bitran Control software. Name saving of exposured images is automatically according to set filter wheel position.

For solar, lunar and planetary imaging, frame rate in 16bit resolution of new BJ-50 series is a lot higher than with BJ-40 series. Bitran Control software offers therefore a powerful routine that we use successfully for planetary imaging:

Saturn with Bitran Camera BJ-41L

Several hundred 256x256-pixel frames were recorded with BJ-41L through RGB CCD-filter!

Camera Specifications:

Camera name BJ-51L BJ-51C BJ-52L BJ-52C BJ-53L BJ-53C BJ-54L
Camera type Monochrome Basic RGB pattern Monochrome Basic RGB pattern Monochrome Basic RGB pattern Monochrome
Sensor quality Sony standard Grade Truesense standard Grade Sony standard Grade Truesense standard Grade
Imaging area 8.8mm x 6.6mm 15.16mm x 15.16mm 12.5mm x 10.0mm 26.93mm x 17.95mm
Pixel of imaging area 1.4 Mio or 1360x1024 pixel 4 Mio or 2048x2048 pixel 6 Mio or 2750x2200 pixel 16 Mio or 4896x3264 pixel
Pixel size 6.45 x 6.45 micrometer 7.4 x 7.4 micrometer 4.54 x 4.54 micrometer 5.5 x 5.5 micrometer
Exposure times 0.01s - 1s in 0.01s steps, 1s - 6500s in 0.1s steps
Read-out time Fullframe 0.7s, center 256pixel 13.7fps Fullframe 1.3s, center 256pixel 5.7fps Fullframe 1.3s, center 256pixel 6.5fps Fullframe 2.2s, center 256pixel 5.7fps
Pixel binning 2x2, 3x3, 4x4 2x2, 3x3, 4x4 (only B&W) 2x2, 3x3, 4x4 2x2, 3x3, 4x4 (only B&W) 2x2, 3x3, 4x4 2x2, 3x3, 4x4 (only B&W) 2x2, 3x3, 4x4
Cooling type Two-stage Peltier cooling, power control by software ; cooling support by water cycle possible
Minimum cooling down -30C below camera body temperature -25C below camera body temperature -30C below camera body temperature -25C 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 104mm (H) 111mm (D) ; weight 530g 78mm (W) x 104mm (H) 122mm (D) ; weight 730g
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 7/8/8.1 / 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:

Saturn Whirlpool Galaxy M51 Jupiter
Pacman NGC 281 Venus in transit
M42 Lunar mountains Pleyades

Prices: Please ask us about actual price; depending on your home country, we always calculate the best price for you. For a price idea check out Manufacturer homepage.

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: Manual guiding is possible with Control Software. BJ-54C cannot be sold. 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)

Copyright © 2014 by The CCD Astronomer, Switzerland