Care & Field Gear

200mm aperture, f/6 Standard grade, 1/4 PV wavefront accuracy Hand-figured in the UK Supplied with a Zygo interferometer test report Descriptio...

200mm aperture, f/4.5 Standard grade, 1/4 PV wavefront accuracy Hand-figured in the UK Supplied with a Zygo interferometer test report Descript...

150mm aperture, f/8 Standard grade, 1/4 PV wavefront accuracy Hand-figured in the UK Supplied with a Zygo interferometer test report Descriptio...

150mm aperture, f/5 Standard grade, 1/4 PV wavefront accuracy Hand-figured in the UK Supplied with a Zygo interferometer test report Descriptio...

150mm aperture, f/4 Research grade, 1/8 PV wavefront accuracy Hand-figured in the UK Supplied with a Zygo interferometer test report Descriptio...

Specialized for extreme cold operation down to -55°C Prevents mount drive stiffening and tracking errors in winter Maintains smooth focuser travel...

Operational Temperature Range: -15°C to +55°C Lubricant Additive: Teflon-Infused Primary Application: Telescope Mounts and Focusers Viscosity Grad...

Radio-controlled time for automatic accuracy Dual alarms for separate weekday and weekend schedules Displays indoor temperature On-demand blue bac...

Radio-controlled for automatic time accuracy Displays current indoor temperature Backlit screen for easy nighttime viewing Dual alarms for separat...

Compact, lightweight travel design Radio-controlled automatic time setting Large, easy-to-read digital display Shows current indoor temperature Ma...

NIST WWVB Radio-Controlled Time Dual Alarms with Snooze Indoor Temperature Display 5-Language Weekday Display Touch Key Controls with LED Backligh...

2-Sided Lunar Reference Map Side 1: Pinpoints Key Observable Features Side 2: Marks Historic Spacecraft Landing Sites Designed as a Companion for ...

Complete 3-Piece Lens Cleaning Kit Includes Air Blower, Brush, and Microfiber Cloth Safe for All Coated Optics Non-Abrasive, Non-Toxic Materials R...

Professional Geological Pocket Transit Lightweight at 106g (3.7oz) Compact Dimensions: 80mm x 70mm x 32mm Integrated Clinometer for Vertical Angle...

Precise Collimation Tool for Newtonian Telescopes Fits Standard 1.25" Focusers Durable Steel Crosshairs CNC-Machined Aluminum Body Net Weight: 156...

Tri-Screw Laser Locking System 1.25" Standard Barrel with Optional 2" Adapter Compatibility Angled Viewing Plate for Easy Adjustments Adjustable B...

Precise 635-655nm red laser for accurate optical alignment 7 adjustable brightness levels for visibility in any condition Triple-cemented lens ens...

Seat Height Range: 20.5" to 28" Lift Mechanism: Class 4 Pneumatic Piston Weight Capacity: 550 lbs (250 kg) Cushion Thickness: 4 inches B...

Compatibility: Tele Vue Delos, DeLite, Nagler T6 (7, 9, 11, 13mm), Panoptic (19, 24mm), and Ethos-SX (3.7, 4.7mm) eyepieces Adjustment: Twist-up v...

La collimation d'un SCT peut être une tâche ardue pour un débutant, mais c'est un processus absolument nécessaire pour tirer le meilleur parti de ...

Caractéristiques La carte recto-verso de la surface lunaire met en évidence les principales caractéristiques telles que les cratères et les mers...

" Le CSbG EcoLight est une alternative à faible impact pour les applications où la priorité est la protection de l'environnement et de la santé hum...

Dôme en acrylique de remplacement pour la caméra AllSky