Starfield Optics Adjustable 1.0x Flattener: Streamline Your Telescope Focusing

• Adjustable Flattener Function: Designed to simplify achieving the correct back focus for telescopes, eliminating the need for multiple adapters.
• Easy Back Focus Adjustment: By setting the required adjustment, attaining the correct back focus becomes straightforward and efficient.
• Fine-Tuning Capability: Allows for additional fine-tuning adjustments with a simple twist, perfect for precise imaging requirements.
• Accessory Compatibility: Easily integrates with additional accessories like filter wheels and rotators, maintaining the necessary back focus.
• Direct Telescope Attachment: Attaches seamlessly to Starfield telescope focusers using the included 1.5mm Allen key.
• Wide Range of Telescope Compatibility: Specifically designed for telescopes ranging from 80mm to 155mm, including specific focal ratios and corresponding back focus measurements.
• Internal Filter Slot: Capable of housing filters within the flattener for enhanced imaging versatility.
• Optimized for Various Models: Includes back focus requirements for telescopes with different apertures and focal ratios, ensuring compatibility across a wide range.

Specifications

This Flattener is designed for telescopes ranging from 80mm to 155mm

• 80 mm / focal ratio f/6 - 81.2 mm
• 90mm / focal ratio f/6 - 82.5mm
• 102 mm / focal ratio f/7 - 75.3 mm
• 115 mm / focal ratio f/7 - 73.0 mm
• 130 mm / focal ratio f/7 - 69.7 mm
• 140 mm / focal ratio f/6.5 - 68.0 mm
• 155 mm / focal ratio f/8 - 57.0 mm