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- High-quality SD refractor with 115 mm aperture
- 890 mm focal length, f7.7
- Bright, pure-colour and extremely sharp image
- Also suitable for full-frame cameras
- Optional reducer and flattener available
- Portable and lightweight, despite large aperture
- Very high contrast thanks to SD glass
- Ideal for observing the moon and planets
- Dimensions: 930 mm x 125 mm, weight: 6.2 kg
- Made in Japan according to stringent quality standards
With BRESSER, you can enjoy a smooth introduction to the vast world of astronomy. Our detailed information ("Telescope Guide") provides valuable tips for beginners—but even experienced astronomers can use the information we provide (e.g., tables for the geographical latitude of all major world cities) as a reference.
Here is the table of contents of the comprehensive BRESSER Telescope Guide:
- 2. The View into the Starry Sky
- 2.1 Observing with the Naked Eye
- 2.1.1 Observing Constellations with the Naked Eye
- 2.2 Observing with Binoculars
- 2.2.1 Observing Planets and Moons with Binoculars
- 2.2.2 Observing Deep Sky Objects with Binoculars
- 2.2.3 Every Beginning is Easy
- 2.3 Observing with a Telescope
- 2.4 The Moon
- 2.4.1 The Moon Phases
- 2.4.2 The Far Side of the Moon
- 2.4.3 The Moon Map
- 2.4.4 Maria (Seas)
- 2.4.5 Mare
- 2.4.6 Craters
- 2.4.7 The Ray Craters
- 2.5 Observing the Solar System with a Telescope
- 2.5.1 Where are the Planets?
- 2.5.2 Planet Observation
- 2.5.3 The Position of the Planets Relative to the Sun
- 2.5.4 The Planets Introduce Themselves
- 2.5.5 Deep Sky Observation with a Telescope
- 2.6 Practical Observation Tips and Tricks
- 2.6.2 Tips for Optimal Observation Conditions
- 2.7 The Most Beautiful Objects Throughout the Year
- 4. Telescopes
- 4.1 The Telescope as an Observation Instrument
- 4.2 Optics
- 4.2.1 Refractor (Lens Telescope)
- 4.2.2 Reflector (Mirror Telescope)
- 4.3 Mechanics
- 4.3.1 Altazimuth Mount
- 4.3.2 Equatorial Mount
- 4.3.3 Drive Motors
- 4.4 Accessories
- 4.4.1 Eyepieces
- 4.4.2 Important Tips for Eyepiece Selection
- 4.4.3 Filters
- 4.4.4 Photographic Accessories
- 4.4.5 Other Accessories
- 5.1 Which Telescope for Whom?
- 5.1.1 Deep-Sky Observations
- 5.1.2 Observing Closer Planets
- 5.1.3 The Topic of Portability
- 5.1.4 Price Factor When Buying a Telescope
- 6. Useful Tables
- 6.1 Table for the Geographic Latitude of All Major World Cities
- 6.1.1 Observers in the Northern Hemisphere (N):
- 6.1.2 Observers in the Southern Hemisphere (S):
- 6.2 Lookup Table for Notable Stars
- 6.3 Getting Acquainted with the Universe - or: Distances in Space
Sky Guides by Bresser
The FPL53 glass reproduces an extremely clear and sharp image by eliminating residual chromatic aberration.
Another advantage of these SD refractors is their short length and lightweight design.
The SD glass is designed to focus all beams of violet, red, blue, yellow and green light exactly onto the same level.
The special lens material reduces chromatic aberration across all colours.
Together with the new optional SD Reducer HD Kit or SD Flattener HD, these refractors provide illumination with a 44 mm image circle for full-frame SLR cameras.
- Objective lenses: 115 mm 2-lens apochromat
- Focal length: 890 mm (f7.7)
- Resolution and limiting magnitude: 1.01 arc seconds; 12.1
- Light-gathering power: 270x
- Backfocus wihout Reducer: 147,2 mm
- Backfocus with Reducer: 63,5 mm
- Dimensions and weight: 125 x 930 mm, 6.2 kg
- Adapter and connections: 50 mm sleeve
- ED 115 telescope/lens barrel
- Carry handle
- Folding mirror
- 7x50 viewfinder
- Tube clamps
- Dovetail adapter
Colour: | white |
---|---|
Colour of coating: | green |
Dust protection caps: | Dust protection caps for front lens and eyepiece holder |
Finderscope: | 7 x 50 mm |
Focus Group [Telescopes]: | Advanced Amateurs, Specialists and Research, Visual enthusiasts |
Material: | Aluminium |
Material front lens or corrector plate: | Ohara Japan FPL-53 ED glass |
Mount Type [Telescopes]: | Optics without Mount |
Optical design: | Apochomatic Refractor |
Product Family [Telescopes]: | Refractor telescope |
Transportability: | very good |
Type of coating: | Multi coated |
Type of tripod thread: | 60 mm |
Warning Note 1: | General safety instructions DANGER Risk of suffocation! Improper use of this product can result in suffocation, especially for children. Therefore, carefully observe the following safety instructions. Keep packaging materials (plastic bags, rubber bands, |
Warning Note 2: | Never look at the sun through an eyepiece/telescope without a certified protection filter. A moon filter can never be used for solar observation. The moon filter is only suitable for moon observation. The solar filter must be mounted in front of the teles |
Warning Note 3: | Never leave the optics unattended. Children and inexperienced adults could point the telescope at the sun without proper precautions and lose their eyesight. |
Warning Note 4: | Do not expose the device to high temperatures. |
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