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 )
$ 172.00
ready for shipping in 24
h

Skywatcher
Flattener Evoguide 50ED
$ 125.00
ready for shipping in 24
h

Explore Scientific
Flattener ED80 & ED102
RRP:
$ 194.00
Our price:
$ 140.00
ready for shipping in 24
h

Skywatcher
Flattener 0.85x EvoStar 72 ED
$ 323.00
ready for shipping in 1-2
weeks

William Optics
Adjustable Flattener Reducer Flat6AIII
$ 431.00
ready for shipping in 24
h

Tecnosky
Flattener/Reducer 0.8x for 70 and 72 ED Apo
$ 172.00
ready for shipping in 24
h

Explore Scientific
ES MPCC Field Flattner ED APO + Canon EOS T2
$ 157.00
ready for shipping in 24
h

Skywatcher
0.85x Focal Reducer/Corrector for Evostar-80ED DS-PRO
$ 323.00
ready for shipping in 1-2
weeks

TS Optics
2" 0,8x corrector for 102mm f/7 ED refractor
$ 189.00
ready for shipping in 3-7
days

TS Optics
Flattener 1x 2"/M48
$ 172.00
ready for shipping in 3-7
days

William Optics
Flattner Flat61A for Z61
$ 334.00
ready for shipping in 24
h

TS Optics
Reducer/Corrector Photoline 0,79x 3"
$ 431.00
ready for shipping in 3-7
days

Omegon
Field Flattener 2''
( 4 / 5 )
$ 259.00
ready for shipping in 24
h

APM
Riccardi M63 0.75X reducer
$ 540.00
ready for shipping in 1-2
weeks

Skywatcher
Evolux 62ED 0.9x flattener
$ 345.00
ready for shipping in 24
h

Tecnosky
Four Elements Flattener/Reducer 0,8x
$ 189.00
ready for shipping in 1-2
weeks

TS Optics
Flattener 1.0x M92
$ 485.00
ready for shipping in 3-7
days

Skywatcher
Flattener Esprit-80ED M48
$ 215.00
ready for shipping in 1-2
weeks

Skywatcher
Flattener 0.77x Esprit 150 ED
$ 459.00
ready for shipping in 3-7
days

William Optics
Flattener Flat68III
RRP:
$ 870.00
Our price:
$ 830.00
ready for shipping in 3-5
weeks

Skywatcher
Flattener Esprit-120ED M48
$ 377.00
ready for shipping in 1-2
weeks

Skywatcher
Flattener Esprit-100ED M48
$ 287.00
ready for shipping in 3-7
days

Skywatcher
Field Flattener (with T-Ring adaptor)
$ 140.00
ready for shipping in 3-7
days

Artesky
Reducer/Field Flattener 0.8x
$ 249.00
ready for shipping in 3-5
weeks

William Optics
Flat GT
$ 323.00
Product can be shipped as of 15.04.2025

Lacerta
Universal Field Flattener 2"
$ 237.00
ready for shipping in 1-2
weeks

William Optics
Flat6A III Special Edition FLT91
$ 590.00
ready for shipping in 3-5
weeks

William Optics
Flattener Flat73A for ZenithStar 73
$ 334.00
ready for shipping in 24
h

TS Optics
Photoline 1.0x Generation II
RRP:
$ 431.00
Our price:
$ 399.00
ready for shipping in 1-2
weeks

Skywatcher
Esprit-150ED M48 field flattener
$ 449.00
ready for shipping in 3-7
days

Explore Scientific
Reducer/Corrector 3" 0.7x
$ 453.00
ready for shipping in 24
h

TS Optics
Flattener 1.0x adjustable
$ 362.00
ready for shipping in 3-7
days

TS Optics
Flattener/Reducer 0,8x AP 80/560
$ 215.00
ready for shipping in 24
h

TS Optics
corrector for RC telescopes, 2"
$ 269.00
ready for shipping in 3-7
days

TS Optics
Flattener/Reducer 0.8x AP 102/714
$ 215.00
ready for shipping in 1-2
weeks

Skywatcher
Flattener 0.85x EvoStar 150 ED
$ 323.00
ready for shipping in 24
h