Explore Scientific 3" .7x Focal Reducer & Field Flattener for APO Refractors

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Explore Scientific 3" .7x Focal Reducer & Field Flattener for APO Refractors
$299.99
Item # ES-FFFR507X-00
4 Questions(s)

In Stock

  • The Explore Scientific 3" Focal Reducer and Field Flattener reduces the focal ratio of APO refractors by .7x.
  • Increased field of view and image illumination.
  • The Explore Scientific 3" Focal Reducer and Field Flattener takes care of edge-of-field aberrations resulting in clear, sharp images.
  • Includes a 3" nosepiece, 2 adapters and a T-thread adapter.
Description

Details

Explore Scientific 3" .7x Focal Reducer & Field Flattener for APO Refractors


The Explore Scientific 3” Focal Reducer and Field Flattener is a versatile accessory made to augment your astrophotography adventure. As a field flattener, this accessory will take care of annoying edge-of-field aberrations brought about by curved focal planes, resulting in clear, sharp images. As a focal reducer, this accessory will reduce your focal ratio by 0.7 for a wider field of view and increased image illumination in shorter exposure intervals.

Explore Scientific recommended this accessory for their 127mm and 152mm APO refractors. Features fully multi-coated optics and comes with a 3" Nosepiece, 2 adapters for various focuser sizes and a male T-thread adapter for the camera.

Explore Scientific Product Number: FFFR507X-00

Additional Information

Additional Information

SKU ES-FFFR507X-00
UPC Code 812257014408
Manufacturer Explore Scientific
Barrel Size 3"
Warranty Lifetime Warranty
Reviews
Included Items

Included Items

  • 3" .7x Focal Reducer & Field Flattener
  • 3" Nosepiece Adapter
  • 2 adapters for various focusers
  • T-Thread Adapter
Questions & Answers

Product Questions

How much back focus do you need for the focal reducer?
4
Is the standard focuser that comes with the ES 127mm capable to handle the weight of the reducer +DSLR camera? it seems a bit heavy for it
3
Will it work with the Es 102 CF f7?
-1
Can this reducer/flattener be used with a diagonal for visual astronomy?
-3
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