Rigel Systems PulsGuide (battery included)

PulsGuide: Enhanced Reticle Illumination for Easier Guiding and Sharper Astrophotography Reduced Eye Fatigue for Better Imaging: The PulsGuide feature pulses the reticle illumination, allowing your eye to rest between pulses. This results in improved contrast between the reticle and faint guide stars, facilitating easier guiding and higher-quality astrophotographs. Customizable Timing and Brightness: Two independent knobs enable you to tailor both the on and off blink times, ranging from continuous on to various long-on/short-off and short-on/long-off combinations. Dual Color LED Options: Includes a red LED, with the option to switch to a yellow LED for enhanced clarity and sharpness of the crosshair, potentially making guiding even easier. Long-Lasting Battery Power: Powered by a long-life CR1/3N battery, included with the purchase and readily available at most electronics stores. Flexible Eyepiece Compatibility: Available with a high-quality, dual crosshair, 12.5mm Plossl eyepiece, or can be used with your existing eyepiece or finder. Fits standard 8mm threaded holes, with 10mm and 14mm set-screw adapters available. Wide Application: Suitable for a variety of astrophotography needs, offering enhanced visibility and control for both beginners and experienced photographers.