Sky-Watcher Sky-Watcher 0.77 Reducer / Flattener For Esprit-150Ed | Eyepiece Accessories & Filters

As A High-Powered Stargazing Tool, This 0.77 Reducer / Flattener From Sky-Watcher Is A Must-Have For Astrophotographers Utilising The Esprit-150Ed Professional Super Apo Triplet Refractor Ota. In Short, The Field Flattener Accurately Corrects The Inherent Spherical Aberration Of Curved Lenses. Without Such A Tool, Image Quality Is Lessened As The Frame Appears Distorted At The Edges Of The Field Of View. When Used As A Focal Reducer, You Are Afforded A Key Reduction In The Focal Ratio Of The Scope. By Doing So, You Are Left With A Wider Field Of View With Shortened Exposure Time, Allowing For More Images To Be Captured In A Shorter Amount Of Time Without Affecting Their Overall Quality.

Sky-Watcher 0.77 Reducer / Flattener For Esprit-150Ed Key Features:

• Solely Compatible With The Esprit-150Ed Professional Super Apo Triplet Refractor Ota
• Specifically Suited To Astrophotographers And Astroimaging
• Promises To Essentially Eliminate Spherical Aberrations
• Actively Shortens The Focal Ratio From F7 To F5.4
• 68% Reduction In Exposure Time
• Compatible With Aps-C And Full Frame Cameras
• Full Frame Camera Produces 2.54 X 1.7° Field Of View
• Aps-C Crop Sensor Produces 1.66 X 1.11° Field Of View
• Consists Of A Sizeable 36Mm Imaging Circle
• Produces A Fully Illuminated
• 90Mm Or 55Mm Back-Focus (With Back Focus Spacer And M48 Ring)
• Implements A 2” Filter Thread
• Suited To A Vast Array Of Filters Such As Moon, Polarizing, And Light Pollution

What’S In The Box?

• 1 X Sky-Watcher 0.77 Reducer / Flattener For Esprit-150Ed
• 1 X Back Focus Spacer
• 1 X M48 Thread Adapter
• 2 X Threaded Cap
• Limited 2-Year Warranty

Faqs:

Does The Sky-Watcher 0.77 Reducer / Flattener Come Equipped With End Caps?

This Astrophotography Tool Does Come Equipped With Green Anodised Aluminium Screw-On End Caps.

How Many Optical Elements Are Implemented Within The Design?

The 0.77 Reducer / Flattener Utilises Three Key Optical Elements Within Its Internal Design.

How Heavy Is This Device?

The Sky-Watcher 0.77 Reducer / Flattener Weighs 910G With Threaded Caps Attached.