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Field Flatteners

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OVL Field Flattener With T Ring Adaptor

OVL Field Flattener With T Ring Adaptor£85.00

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Superb quality, non-focal reducing Field Flattener optimised for DSLR imaging on refractor telescopes with focal ratios of between f/5.5 to f6.0. Will also provide much improved results on refractors with focal lengths narrowly outside this optimised f/range.

RVO Horizon 60® 1.0x Field Flattener

RVO Horizon 60® 1.0x Field Flattener£104.99

The brand new RVO Horizon® 60 1.0x Field Flattener to suit the RVO Horizon® 60 ED refractor.

Explore Scientific ES MPCC Field Flattener ED APO Canon EOS T2 Mount

Explore Scientific ES MPCC Field Flattener ED APO Canon EOS T2 Mount£145.00

Explore Scientific MPCC Field Flattener with Canon EOS T2. Custom designed to be used with the Explore and Meade APOs. Includes a Canon fitting as standard.

Skywatcher Field Flattener For Esprit 80 ED

Skywatcher Field Flattener For Esprit 80 ED£145.00

An optically-matched M48-fitting doublet field flattener for Skywatcher's Esprit 80 ED PRO triplet refractor.

Skywatcher Field Flattener For Esprit 100 ED

Skywatcher Field Flattener For Esprit 100 ED£197.00

An optically-matched M48-fitting doublet field flattener for Skywatcher's Esprit 100 ED PRO triplet refractor.

Askar 1.0x Field Flattener For 103 APO

Askar 1.0x Field Flattener For 103 APO£198.00

The 1x flattener does not change the telescope's focal ratio itself. After connecting with the Askar 103APO, it still maintained a focal length of 6.8.

William Optics Adjustable Field Flattener For Zenithstar 61

William Optics Adjustable Field Flattener For Zenithstar 61£209.00

Brand new adjustable field flattener for the William Optics Zenithstar 61 OTA. This is a brand new 2019 item which is now in stock at Rother Valley Optics.

William Optics Adjustable Field Flattener For Zenithstar 73

William Optics Adjustable Field Flattener For Zenithstar 73£209.00

Brand new adjustable field flattener for the William Optics Zenithstar 73 OTA. This is a brand new 2019 item which is now in stock at Rother Valley Optics.

HoTech 2'' SCA Field Flattener

HoTech 2" SCA Field Flattener£210.00

The HoTech SCA field flattener accomodates f5 to f8 refractor telescope. You will see bright and sharp image across the entire field.

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.

Vixen HD Flattener Kit For FL55SS OTA

Vixen HD Flattener Kit For FL55SS OTA£382.00

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"£392.00

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.

Starizona Apex ED L 0.65x Reducer / Flattener

Starizona Apex ED L 0.65x Reducer / Flattener£399.00

With the Apex ED reducer, an f/5.5 apo refractor becomes an incredibly fast f/3.6 astrograph. A slower f/9 telescope like an RC becomes a speedy f/5.9 system.

Starizona Apex ED S 0.65x Reducer / Flattener

Starizona Apex ED S 0.65x Reducer / Flattener£419.00

With the Apex ED reducer, an f/5.5 apo refractor becomes an incredibly fast f/3.6 astrograph. A slower f/9 telescope like an RC becomes a speedy f/5.9 system.

Vixen HD Reducer / Flattener Kit For FL55SS OTA

Vixen HD Reducer / Flattener Kit For FL55SS OTA£856.00

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.


Page 1 of 1:    16 Items
Rother Valley Optics Ltd
Rother Valley Optics Ltd