Technical data sheet
Askar SQA85 – 85mm f/4.8 Petzval Apochromatic Refractor for astrophotography
The Askar SQA85 is a Petzval Quadruplet apochromatic refractor designed to offer maximum performance in wide-field astrophotography. With an 85mm aperture and 412mm focal length (f/4.8), it guarantees bright images free of chromatic aberration and coma. Thanks to its corrected field covering full-frame sensors and a 3.5" dual-speed focuser, the SQA85 is the ideal instrument for astrophotographers seeking a combination of compactness, quality, and precision.
- Petzval Quadruplet design with low-dispersion ED glass
- 85mm aperture and 412mm focal length, f/4.8 focal ratio
- Flat field corrected for full-frame sensors
- Images free of chromatic and geometric aberration
- Compact, lightweight, and portable
- Robust 3.5" focuser with 1:10 micro-reduction
- CNC aluminum construction with retractable dew shield
- Includes mounting rings and dovetail plate
Technical specifications
| Model | Askar SQA85 |
| Optical type | Petzval Quadruplet apochromatic refractor |
| Optical design | 4 elements with ED doublet |
| Aperture | 85 mm |
| Focal length | 412 mm |
| Focal ratio | f/4.8 |
| Corrected field | Full-frame |
| Focuser | 3.5" with 1:10 dual speed |
| Dew shield | Retractable |
| Included accessories | CNC rings, dovetail plate |
| Weight | ~5.7 kg |
| Tube length | ~480 mm (dew shield retracted) |
Products costing over €199.99 include free shipping.
Askar SQA85 – 85mm f/4.8 Petzval Apochromatic Refractor for astrophotography
The Askar SQA85 is a Petzval Quadruplet apochromatic refractor designed to offer maximum performance in wide-field astrophotography. With an 85mm aperture and 412mm focal length (f/4.8), it guarantees bright images free of chromatic aberration and coma. Thanks to its corrected field covering full-frame sensors and a 3.5" dual-speed focuser, the SQA85 is the ideal instrument for astrophotographers seeking a combination of compactness, quality, and precision.
- Petzval Quadruplet design with low-dispersion ED glass
- 85mm aperture and 412mm focal length, f/4.8 focal ratio
- Flat field corrected for full-frame sensors
- Images free of chromatic and geometric aberration
- Compact, lightweight, and portable
- Robust 3.5" focuser with 1:10 micro-reduction
- CNC aluminum construction with retractable dew shield
- Includes mounting rings and dovetail plate
Technical specifications
| Model | Askar SQA85 |
| Optical type | Petzval Quadruplet apochromatic refractor |
| Optical design | 4 elements with ED doublet |
| Aperture | 85 mm |
| Focal length | 412 mm |
| Focal ratio | f/4.8 |
| Corrected field | Full-frame |
| Focuser | 3.5" with 1:10 dual speed |
| Dew shield | Retractable |
| Included accessories | CNC rings, dovetail plate |
| Weight | ~5.7 kg |
| Tube length | ~480 mm (dew shield retracted) |
Products costing over €199.99 include free shipping.
SKU:ASK-SQA85
Askar SQA85 – 85mm f/4.8 Petzval Quadruplet Full-Frame Apochromatic Refractor
- Regular price
- €2.600,00
- Sale price
- €2.600,00
- Regular price
-
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Askar SQA85 – 85mm f/4.8 Petzval Apochromatic Refractor for astrophotography
The Askar SQA85 is a Petzval Quadruplet apochromatic refractor designed to offer maximum performance in wide-field astrophotography. With an 85mm aperture and 412mm focal length (f/4.8), it guarantees bright images free of chromatic aberration and coma. Thanks to its corrected field covering full-frame sensors and a 3.5" dual-speed focuser, the SQA85 is the ideal instrument for astrophotographers seeking a combination of compactness, quality, and precision.
- Petzval Quadruplet design with low-dispersion ED glass
- 85mm aperture and 412mm focal length, f/4.8 focal ratio
- Flat field corrected for full-frame sensors
- Images free of chromatic and geometric aberration
- Compact, lightweight, and portable
- Robust 3.5" focuser with 1:10 micro-reduction
- CNC aluminum construction with retractable dew shield
- Includes mounting rings and dovetail plate
Technical specifications
| Model | Askar SQA85 |
| Optical type | Petzval Quadruplet apochromatic refractor |
| Optical design | 4 elements with ED doublet |
| Aperture | 85 mm |
| Focal length | 412 mm |
| Focal ratio | f/4.8 |
| Corrected field | Full-frame |
| Focuser | 3.5" with 1:10 dual speed |
| Dew shield | Retractable |
| Included accessories | CNC rings, dovetail plate |
| Weight | ~5.7 kg |
| Tube length | ~480 mm (dew shield retracted) |
Products costing over €199.99 include free shipping.
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