Sharpstar reducer 50EDPH 0,84x

Sharpstar 50EDPH 0.84× reducer (Sharpstar). The four-element 0.84× reducer is designed for the Sharpstar 50EDPH refractor. It shortens the focal length from 275 mm to approximately 230 mm and changes the focal ratio from f/5.5 to f/4.6, widening the imaging field. The corrected field accommodates APS-C sensors.

Key features

• four-element optical system matched to the 50EDPH
• threaded telescope and camera connections
• internal fitting for a 2" filter
• item: CNC-machined metal housing

Included items

• reducer: 50EDPH 0.84×
• metal caps for both ends

Technical specifications

• reduction factor: 0.84×
• optical construction: four elements
• supported sensor format: APS-C
• focal length with the 50EDPH: approximately 230 mm
• focal ratio with the 50EDPH: f/4.6
• telescope-side thread: M42 × 1
• camera-side thread: male M48 × 0.75
• filter thread: M48 × 0.75, 2" standard
• backfocus: 55 mm from the base of the male M48 thread to the sensor
• weight: 0.24 kg
• warranty stated by the seller: 24 months

When assembling the imaging train, maintain the 55 mm distance between the specified reducer reference plane and the camera sensor.