The flattener is an arrangement of lenses that flatten the image field, as this is slightly curved by the primary optical system. This curvature causes stars to appear less sharp toward the edge of the field of view on photographic images. The flattener, also known as a field flattener lens, corrects this error.
Celestron
Reducer 0.63x / Corrector
( 4.5 / 5 )
$ 184.00
ready for shipping in 24
h
William Optics
Adjustable Flattener Reducer Flat6AIII
$ 381.00
ready for shipping in 24
h
Omegon
Field Flattener 2''
( 4 / 5 )
$ 259.00
ready for shipping in 24
h
Skywatcher
Flattener 0.85x EvoStar 72 ED
$ 346.00
ready for shipping in 24
h
William Optics
Flattner Flat61A for Z61
RRP:
$ 381.00
Our price:
$ 358.00
ready for shipping in 24
h
William Optics
Flat GT
$ 438.00
ready for shipping in 24
h
TS Optics
Flattener/Reducer 0.8x CF-APO 80
$ 301.00
ready for shipping in 24
h
Explore Scientific
Flattener ED80 & ED102
$ 207.00
ready for shipping in 1-2
weeks
APM
Riccardi Flattener Model 1
$ 580.00
ready for shipping in 1-2
weeks
Skywatcher
Flattener Evoguide 50ED
$ 133.00
ready for shipping in 1-2
weeks
Skywatcher
0.85x Focal Reducer/Corrector for Evostar-100ED DS-PRO
$ 346.00
ready for shipping in 24
h
TS Optics
Flattener 1.0x M92
$ 520.00
ready for shipping in 3-7
days
Skywatcher
Esprit-150ED M48 field flattener
$ 480.00
ready for shipping in 24
h
Tecnosky
Four Elements Flattener/Reducer 0,8x
$ 203.00
ready for shipping in 1-2
weeks
Explore Scientific
Reducer/Corrector 3" 0.7x
RRP:
$ 485.00
Our price:
$ 345.00
ready for shipping in 1-2
weeks
Skywatcher
Flattener 0.77x Esprit 120
$ 492.00
ready for shipping in 24
h
Skywatcher
Flattener 0.77x Esprit 150
$ 492.00
ready for shipping in 1-2
weeks
Skywatcher
Flattener Esprit 120
$ 404.00
ready for shipping in 1-2
weeks
TS Optics
corrector for RC telescopes, 2"
$ 288.00
ready for shipping in 3-7
days
Skywatcher
Flattener 0.85x Evostar 120 EDX
$ 346.00
ready for shipping in 24
h
TS Optics
Photoline 1.0x Generation II
RRP:
$ 462.00
Our price:
$ 427.00
ready for shipping in 1-2
weeks
TS Optics
Flattener 1.0x M63
$ 345.00
Product can be shipped as of 01.12.2025
Skywatcher
0.85x Focal Reducer/Corrector for Evostar-80ED DS-PRO
$ 346.00
ready for shipping in 24
h
Skywatcher
Flattener 0.92x Evostar 100 EDX & Esprit 70 EDX
$ 242.00
ready for shipping in 1-2
weeks
Skywatcher
Flattener 0.77x Evostar 150 EDX
$ 346.00
ready for shipping in 1-2
weeks
Skywatcher
Flattener 0.85x EvoStar 150 ED
$ 346.00
ready for shipping in 24
h
Skywatcher
Flattener Esprit-80ED M48
$ 230.00
ready for shipping in 24
h
Skywatcher
Flattener Esprit 100
$ 307.00
ready for shipping in 1-2
weeks
TS Optics
Field flattener for PhotoLine apos ,72mm, 1.0X
$ 231.00
ready for shipping in 3-7
days
Skywatcher
Field Flattener (with T-Ring adaptor)
$ 150.00
ready for shipping in 24
h
Tecnosky
Adjustable Flattener Reducer FF 0.8x
$ 345.00
ready for shipping in 24
h
TS Optics
Flattener 1.0x
$ 196.00
ready for shipping in 1-2
weeks
TS Optics
Flattener/Reducer 0.8x AP 102/714
$ 230.00
ready for shipping in 1-2
weeks
Askar
Flattener 1.0x 103APO
$ 300.00
Product can be shipped as of 15.11.2025
Lacerta
Universal Field Flattener 2"
$ 254.00
ready for shipping in 1-2
weeks
TS Optics
Flattener/Reducer 0.8x 2"
$ 203.00
ready for shipping in 3-7
days