ASKAR FMA230 50 mm f230 mm f/4,6

The Askar FMA 230 is a professional-grade astronomical optics system designed for both astrophotography and visual observations. Its modular structure allows for seamless transition between these two applications, making it a highly versatile astrograph.

At the heart of the Askar FMA 230 system is its exceptional lens, which consists of a three-element apochromatic triplet with an air gap. This lens is meticulously crafted to deliver outstanding correction of chromatic aberrations, thanks to the inclusion of two elements made of low dispersion glass (ED). When combined with the four-element focal length reducer, the lens enables shooting at a focal length of 230 mm and an aperture of f/4.6.

Not only is the Askar FMA 230 ideal for astrophotography, but it also proves itself as an excellent instrument for visual observations. By simply disconnecting the reducer, users can mount the included adapter, allowing the attachment of two-inch eyepieces or angle adapters.

To ensure a sturdy and reliable setup, the set includes precisely engineered mounting clamps with a solid Vixen foot, enabling secure embedding of the astrograph in an assembly. Additionally, the accessory socket of the Askar FMA 230 is thoughtfully designed, allowing it to be mounted on a traditional photographic tripod equipped with an Arca-Swiss connector.

Key Features of the Askar FMA 230 Astrograph:

• Apochromatic triplet lens with an air gap and two low-dispersion elements, tailored for astrophotography and visual observations.
• Four-element 0.83x focal length reducer.
• Two-inch adapter for attaching eyepieces for visual observations.
• Accessory rail with dovetail socket compatible with the Arca-Swiss standard.

Technical Specifications:

• Optical design of the lens: APO ED triplet with air gap.
• Number of ED glass elements: Two.
• Optical construction of the focal length reducer: Quadruplet.
• Focal length reducer: 0.84x.
• Aperture: 50 mm.
• Focal length (without reducer): 275 mm.
• Focal length (with reducer): 230 mm.
• Light shone (without reducer): f/5.5.
• Light shone (with reducer): f/4.6.
• Back focus: 55 mm (from the end of the M48 thread).
• Focus adjustment: Helical focuser.
• Mounting for assembly: Vixen foot.
• Tripod mount: Arca-Swiss.
• Accessory mount: Vixen socket.
• Camera/camcorder mount: M48x0.75 thread.
• Adapter for visual observations: 2".
• Length with reducer (for astrophotography): 248 mm.
• Length without reducer (for visual observation): 221 mm.
• Weight: 1045 g.

Included Components:

• Askar FMA 230 astrograph.
• Fastening rings.
• Vixen footer.
• Accessory rail.
• 2" adapter.
• Documentation.

Warranty:

The Askar FMA 230 comes with a 24-month guarantee, ensuring peace of mind and customer satisfaction.