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
7 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?
20
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
6
Can this reducer/flattener be used with a diagonal for visual astronomy?
2
What's the reducer field stop? Would this reducer work on the 16" Meade ACF F8 with a 36.7 × 36.7 mm KAF-9000 CCD chip+OAG?
0
Hello I would use this flattening reducer for a meade series 6000 apo 130edt
F 7
-1
Will it work with the Es 102 CF f7?
-2
What are the inner thread sizes of the 2 adapters?
-2
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