Our company is involved in preparing official permits from the Polish Ministry of Development and Technology, which allows us to export all dual-use drones, optics, and portable radiophones without VAT on the Polish side / and without VAT on the Ukrainian side.
Askar f / 3.9 Full-Frame Reducer for FRA400 / FRA500 Flatfield Astrograph (SKU: ASRED72)
258.05 £ net price (non-EU countries)
Anatolii Livashevskyi
Product Manager
/ 
+48721808900
+48721808900
+48721808900
[email protected]
Description
The Askar f/3.9 Full-Frame Reducer for FRA400/FRA500 Flatfield Astrograph
Elevate your astrophotography with the Askar f/3.9 Full-Frame Reducer, designed specifically for the FRA400 and FRA500 Flatfield Astrographs. This essential accessory optimizes your astrograph's performance, allowing for superior field correction and flawless integration with full-frame sensors on professional cameras and camcorders.
Transform your Askar FRA400 astrograph by reducing its focal length by 0.7x, achieving an impressive 280 mm at f/3.9. This enhancement not only facilitates the capture of stunning wide-field images but also cuts exposure times by up to half, increasing your efficiency as an astrophotographer.
The reducer features an M48x0.75 thread on the camera side, making it simple to attach 2" diameter filters. This capability empowers photographers to experiment with various filters, thereby enhancing their creative imaging possibilities.
Key Features of the Askar f/3.9 Reducer:
- Designed specifically for the Askar FRA400 astrograph, ensuring optimal compatibility with full-frame sensors.
- Reduces focal length by 0.7x, resulting in an effective focal length of 280 mm at f/3.9.
- Accommodates 2" diameter filters for versatile filtering options.
- Offers a generous 55 mm back focus distance for flexible camera setup and optimal focus.
Technical Specifications:
- Focal Length Multiplicity: 0.7x
- Compatibility: Askar FRA400
- Focal Length without Reducer: 400 mm
- Focal Length with Reducer: 280 mm
- Aperture without Reducer: f/5.6
- Aperture with Reducer: f/3.9
- Rear Thread (Camera Side): M48x0.75
- Front Thread (Extractor Side): M61x1
- Filter Installation: Yes, 2" diameter
- Back Focus Distance: 55 mm
- Length: 63 mm
- Diameter: 72 mm
Kit Components:
- Askar f/3.9 Reducer
Warranty:
Enjoy peace of mind with a 24-month warranty on the Askar f/3.9 reducer. This warranty ensures you have ample time to explore its capabilities and capture stunning astronomical images.
Data sheet
Official permits of the Ministry of Development and Technology
Our company is involved in preparing official permits from the Polish Ministry of Development and Technology, which allows us to export all dual-use drones, optics, and portable radiophones without VAT on the Polish side / and without VAT on the Ukrainian side.