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A new apochromatic refractor with high performance Super-ED glass (= SD).
The FPL53 glass reproduces an extremely clear and sharp image by an exceptionally high degree of elimination of residual chromatic aberrations.
The advantage of these SD refractors is their short length and low weight.
The SD glass is designed to bring all beams of violet, red, blue, yellow and green very precisely together on the same plane.
The special lens material, reduces chromatic aberration across all colors.
In combination with the new optional SD Reducer HD Kit or SD Flattener HD, these refractors allow illumination with a 44mm image circle for full format SLR cameras.
FEATURES
SCOPE OF DELIVERY
FEATURES
- Lens diameter: 103mm
- Type of coating: Multi-coated
- Focal length: 795 mm (f7.7)
- Resolution: 1.13 arc seconds
- Visual limit value: 11.8 mag
- Max. magnification: 206x
- Tube length: 810mm
- Tube diameter: 115mm
- Tube weight: 5,4kg
- Viewfinder telescope: 7x50 with illumination unit
- Adapter 7.0 degrees FOV included
- Connections/adapters: thread 60mm and 31.7mm for T-ring
- Eyepiece adapter: 50.8mm (2 inches) and 31.7mm (1.25 inches)
- Backfocus without Reducer: 150,4 mm
- Backfocus with Reducer: 63,5 mm
- Flip mirror included
SCOPE OF DELIVERY
- Optical Tube
- Tube rings with carrying handle
- GP dovetail adapter
- Flip mirror
- Dust covers
Technical Data
| Field of application | |
|---|---|
| Field of application |
|
| Focus group | |
| Focus Group |
|
| Product family | |
| Product Family | Refractor telescope |
| OPTICAL SPECIFICATIONS | |
| Optical design | Apochomatic Refractor |
| Magnification from | 20 |
| Maximum recommended magnification | 206 |
| ED glass | ✓ |
| Material front lens or corrector plate | Ohara Japan FPL-53 ED glass |
| Mirror/Lens diam. | 103 mm |
| Focal length | 795 mm |
| Aperture ratio | 7.7 |
| Angular resolution | 1.13 arc seconds |
| Type of coating | Fully multi-coated |
| Finderscope | 7 x 50 mm |
| GENERAL TECHNICAL DATA | |
| Material OTA | Metal |
| Colour | white |
| Eyepiece Barrel Diameter | 50.8 mm |
| Material | Metal |
| Mount Type | Optics without Mount |
| DIMENSIONS & WEIGHTS | |
| Total length | 810 mm |
| Net weight OTA (incl. accessories) | 5.4 kg |
| Tube diameter | 115 mm |
Technical Data
| Field of application | |
|---|---|
| Field of application |
|
| Focus group | |
| Focus Group |
|
| Product family | |
| Product Family | Refractor telescope |
| OPTICAL SPECIFICATIONS | |
| Optical design | Apochomatic Refractor |
| Magnification from | 20 |
| Maximum recommended magnification | 206 |
| ED glass | ✓ |
| Material front lens or corrector plate | Ohara Japan FPL-53 ED glass |
| Mirror/Lens diam. | 103 mm |
| Focal length | 795 mm |
| Aperture ratio | 7.7 |
| Angular resolution | 1.13 arc seconds |
| Type of coating | Fully multi-coated |
| Finderscope | 7 x 50 mm |
| GENERAL TECHNICAL DATA | |
| Material OTA | Metal |
| Colour | white |
| Eyepiece Barrel Diameter | 50.8 mm |
| Material | Metal |
| Mount Type | Optics without Mount |
| DIMENSIONS & WEIGHTS | |
| Total length | 810 mm |
| Net weight OTA (incl. accessories) | 5.4 kg |
| Tube diameter | 115 mm |
Product reviews
Vixen SD103S apochromatic Refractor
What our customers say:
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