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Field Flatteners & Coma Correctors

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Skywatcher Field Flattener For Esprit 120

Skywatcher Field Flattener For Esprit 120£259.00

An optically-matched M48-fitting doublet field flattener for Sky-Watcher's Esprit 120 ED PRO triplet refractor.

William Optics 0.8x Adjustable Reducer Flattener For Z61

William Optics 0.8x Adjustable Reducer Flattener For Z61£269.00

Brand new 0.8x adjustable reducer flattener by William Optics to suit the Zenithstar 61 series. Comes complete with integrated rotator and 2" filter holder.

William Optics 0.8x Adjustable Reducer Flattener For ZS73

William Optics 0.8x Adjustable Reducer Flattener For ZS73£269.00

Brand new 0.8x adjustable reducer flattener by William Optics to suit the Zenithstar 73 series. Comes complete with integrated rotator and 2" filter holder.

Takahashi 0.93x Flattener nĀ°80 For FOA-60

Takahashi 0.93x Flattener nĀ°80 For FOA-60£295.00

Takahashi 0.93x Flattener n°80 For FOA-60 series of telescopes. Provides an almost flat field across the entire image circle. Reduces the FOA-60 to an F/8.2 instrument.

Askar 0.6x Full Frame Reducer For 103 APO

Askar 0.6x Full Frame Reducer For 103 APO£298.00

The 0.6x reducer can bring the Askar 103APO's focal ratio down to F4 while also providing field flattening. Askar 103APO adopts a detachable tube design, where the rear part of the tube can be removed when using the 0.6x reducer

Skywatcher 0.77x Reducer/Flattener For Esprit 120

Skywatcher 0.77x Reducer/Flattener For Esprit 120£315.00

​Designed specifically for the Sky-Watcher Esprit-120 ED Apo Refractor, the new three-lens Focal Reducer/Flattener has a reduction factor of 0.77x. It comes with a standard adaptor with M48 thread.

Skywatcher 0.77x Reducer/Flattener For Esprit 150

Skywatcher 0.77x Reducer/Flattener For Esprit 150£315.00

Designed specifically for the Sky-Watcher Esprit-150 ED Apo Refractor, the new three-lens Focal Reducer/Flattener has a reduction factor of 0.77x. It comes with a standard adaptor with M48 thread.

Explore Scientific HR Coma Corrector

Explore Scientific HR Coma Corrector£325.00

The Explore Scientific ES HR Coma Corrector is one of the highest quality units available on the market today. Its four element design yields a superbly corrected field with coma correction right to the edge of the field.

Vixen HD Flattener Kit For FL55SS OTA

Vixen HD Flattener Kit For FL55SS OTA£385.00

The HD flattener kit for the Vixen FL55SS consists of a field flattener lens and a connecting tube ring, which is designed for the FL55SS optical tube.

Explore Scientific 0.7x Reducer/Corrector 3''

Explore Scientific 0.7x Reducer/Corrector 3"£395.00

The Explore Scientific 3in 0.7x Reducer - Corrector reduces the effective focal length of a particular instrument by the factor 0.7x (for f/8) and 0.8x (for f/10) respectively. The reducer/corrector not only reduces the focal length but also operates as a very effective field flattener.

Takahashi TOA-35 Flattener For TSA & TOA Series

Takahashi TOA-35 Flattener For TSA & TOA Series£410.00

The Takahashi TOA-35 Flattener corrects the field on TOA and TSA telescopes for visual use. The image circle produced by the flattener is 40 mm, with star images of 2 microns in the center and 8 microns at the edge of the field.

William Optics 0.8x Reducer / Flattener 7A

William Optics 0.8x Reducer / Flattener 7A£659.00

The William Optics 0.8x Reducer / Flattener is compatible with the Z126, GT153, GT102, GLT156 & FLT132 to provide a sharp flat field ideal for widefield imaging.

William Optics FF68III Adjustable Flattener For FLT 132

William Optics FF68III Adjustable Flattener For FLT 132£659.00

This revolutionary new WO FF68II Adjustable Flattener was made for 6 -7.5 F ratio refractors. This high-quality flattener has been engineered and CNC machined for usage with our FLT 132, 102GTS and other APO refractors.

Vixen HD Reducer / Flattener Kit For FL55SS OTA

Vixen HD Reducer / Flattener Kit For FL55SS OTA£863.00

The reducer HD kit for the Vixen FL55SS consists of a field flattener lens, a focal reducer and a connecting tube ring, which is designed for the FL55SS optical tube.

  
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Page 3 of 3:    46 Items