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Opticstar

Opticstar AG-131M Advanced CoolAir Auto-Guiding System, Includes PL-131M Video Camera, Interface Box, Cables

SKU: OS131MAG MFR: OSRAG131MCA
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About the Opticstar AG-131M

The Opticstar AG-131M Advanced CoolAir Auto-Guiding System includes everything you need to auto-guide any telescope with an ST-4 compatible port. The AG-131M CoolAir system includes the Shoestring GPUSB connectivity kit that interfaces the computer (USB 2.0 port) with the telescope mount (ST-4 port).

The auto-guider system includes the Opticstar PL-131M CoolAir color video camera that connects to your computer's USB 2.0 port. For auto-guiding, the camera is software controlled by PHD Guiding that is included in the package. The telescope is also controlled by PHD Guiding. It is possible to use alternative auto-guiding software such as Guidemaster that is also included. There is also support for AstroArt and MaxIm DL. Both of these software packages can be used for auto-guiding and/or imaging. Plug-ins are included for both of them. Nebulosity Lite is also bundled with the AG-131M CoolAir and it supports 2x2 binning, stacking and much more. Nebulosity Lite is well suited for image capture, lapse photography and basic image processing including frame stacking.

The PL-131M CoolAir is high-speed, a high-resolution 1.3 mega-pixel monochrome camera that is sensitive and can be used to capture images of the planets, Sun and Moon. The camera is very easy to use and provides a quality, low noise affordable solution for viewing or capturing high quality digital video from the telescope and recording it to your computer at a maximum 1.3 mega-pixel resolution. There is no infra-red (IR) filter. The camera is cased in a robust metal body and can be connected to any telescope with a standard 1.25" drawtube. A PC with a USB2.0 port running Windows XP/Vista/7/8 is required. The PL-131M CoolAir is powered by the USB 2.0 port and therefore no power supply unit is required. The camera will operate at a maximum true resolution of 1280x1024 but lower resolutions of 1024x768, 640x480, 320x240 are also supported.

With the Guidemaster software provided, the computer can control your telescope mount and direct it's motion. Many telescopes come with a six pin port that looks like a phone jack. This is called an RJ-12 connector. Typically, a hand controller is plugged into the ST-4 port. However with the AG-131M CoolAir you can plug its RJ-12 cable to the hand controller which itself is connected to the mount. Depending on your telescope, you might have to plug the RJ-12 cable directly to the mount.

The AG-131M CoolAir system includes the Shoestring GPUSB interface box and needs a USB connection to your computer. The PL-131M CoolAir camera operates in two distinct modes. In video mode the camera will show as a DirectShow/WDM device and will produce very fast frame rates with exposures limited to under half a second. This mode is ideal for solar and planetary imaging as well as for 'training' telescope mounts. It can also be used for guiding with less dim stars.

The single shot mode supports longer exposures, in this mode a full frame is only sent to the computer once the exposure has been completed. This mode is ideal for guiding on dimmer targets. It is recommended that guiding exposures of around 1 second are used as this will even out any atmospheric turbulence, reveal fainter stars and improve guiding performance.

The PL-131M CoolAir camera requires a fully featured, full speed USB2.0 port to take advantage of all the camera's advanced features. Fully featured USB2.0 ports are rare in older laptops and not always present in entry level laptops. PCMCIA/CardBus USB2.0 cards typically do not deliver full USB2.0 speeds and will not work with USB2.0 high resolution video cameras including the PL-131M CoolAir. To resolve such issues an ExpressCard (with a USB2.0 port) could be used instead of a PCMCIA/CardBus card due to the ExpressCard's superior speed of 2.5Gbit/s (480 Mbit/s through USB 2.0) per slot.

The GPUSB guide port interface adapter plugs directly into a USB port on your computer or a USB hub attached to your computer. Using an RJ-12 cable, the adapter connects to the guide port of your telescope mount. This guide port interface uses optocouplers to electrically isolate the computer from the telescope, eliminating a possible source of electrical interference. This interface adapter requires no external power source since it receives its power via the USB cable.

Opticstar AG-131M Includes

  • Opticstar PL-131M CoolAir 1.3MP Monochrome Camera
  • Shoestring GPUSB (USB Version) Auto-Guide Interface Box with RJ-12 Cable
  • CS-Mount to 1.25" Telescope Adaptor
  • USB 2.0 Cable
  • Printed Set-Up Guide
  • Software on CD
  • Opticstar Warranty

Opticstar AG-131M Features

  • Complete guiding solution for telescopes
  • For all mounts with a Guide Port (ST-4)
  • For all ASCOM compliant mounts
  • Also supports most non-ASCOM mount
  • Ideal for Planetary imaging
  • Air-Cooled with internal fan
  • USB 2.0 Powered

Opticstar AG-131M Specifications

Sensor Micron MT9C001
Optical Format 1/2" CMOS monochrome sensor (no IR filter)
Resolution (WxH) 1280 x 1024
Pixel Size 5.2um x 5.2um
Maximum Frame Rate 22fps at 1280x1024 maximum; 80fps at 640x480; 220fps at 320x240
ADC 8-bit
Shutter Electronic Rolling
Exposure Time Minimum 1ms; Maximum 10 seconds in native long exposure mode.
Computer Interface USB 2.0 with 1.8m (6 feet) of USB cable
Power Requirement USB Bus Power
Cooling Air-cooled from internal fan (USB powered)
Sensor Distance to Camera Front 10.5mm (requires removal of internal spacers), 12.5mm & 17.5mm
Operating System Microsoft Windows (32-bit & 64-bit) XP/Vista/7/8
Dimensions (WxDxH) 65x40x85mm / 2.55x1.57x3.34"
Weight 175 g / 6.172 oz
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