These large optics are seldom found in the astronomical community, as the production is very high engineering. It is an apochromat with a classic f/8 ratio, with a 175mm aperture 1400mm focal length.
A 175mm aprture provides more than 3x as much area as a 100mm telescope and twice as much area as a 5-inch scope! The resolution of below than 0.7" is very interesting, it is also possible to separate very difficult double stars. This resolution gives you a breathtaking detail view of the moon and planets, especially binocular! The 7-inch refractor can be called the ultimate planetary device. No 7" Apo below a Strehl value of 0.96 leaves us, these are the same quality guidelines as with the Zeiss APQ!
With this telescope you can rely on exceptional performance data that will give you unforgettable hours! Due to the full, customer-optimized adaptation of the tube, e.g. Binocular attachments or larger solar observation equipment are no problem at all! Planets are an absolute pleasure, solar observation is possible on an extreme level! Of course, semi-professional work is also possible in photography! Many of these large refractors are installed at institutes and research institutes.
The classic 7 inch aperture is a size for serious observers! APM can deliver these very high-quality triplet SuperED apochromats at short notice and at very attractive prices! There are no delivery times lasting several years!
In addition to the large 3.5" FeatherTouch™ focuser, all the important reducing adapters are already integrated in order to conveniently connect both photographic and visual accessories. Tube rings are standard, as is the finder bracket.
Characteristics:
- High quality SuperED triplet design
- Excellent chromatic and field correction
- Modern broadband multicoatings
- Fast f/ratio for visual and especially photographic use
- Lightweight and optimized OTA
- Very high quality Starlight Instruments™ focuser with 1:10 gear
- Excellent price-performance ratio
Delivery:
- CNC machined lightweight OTA 175/1400mm
- CNC tube rings
- 3.5" Starlight Instruments™ focuser 1:10 gear, rotatable
- 3.5" / 2" reduction
- 2" / 1¼" eyepiece adapter
- 2" sleeve 80mm
- Test certificate
- Protective caps
- Packaging
Products specifications
| Coating | Multicoated |
| Eyepiece adapter | to 2" and 1.25" |
| Threads in tuberings | 1/4" 5 x |
| Width of tuberings | 2 tuberings each 30 mm |
| Color | white |
| Tube material | Aluminium |
| Type of telescope | 3-element SuperED Apo Refractor |
| Lens | 3-element SuperED |
| Focal ratio | f/8 |
| Aperture | 175 mm |
| Focal length | 1400 mm |
| Limit value | 13 mag |
| Max. useful visual power | 350 x |
| Backfokus | 220 mm |
| Focuser | 3.5" Starlight Feather Touch, 360° rotatable |
| Connection to eyepiece | 3.5" to 2" and 2" to 1 1/4" |
| Included accessories | Adaptor 3.5"/2" and 2"/1 1/4" with Brass Clamp, 2" Extension tube 80 mm, set of Tuberings, Testreport, 2 Covers |
| Case | optional |
| Viewfinder | Bracket for 50 mm Viewfinder, Viewfinder optional |
| Resolution | 0.68" |
| Transportation length | 1225 mm |
| Distance of threads | centric, 2.362" and 3.2" distance |
| Tube weight | 43 lb incl. Tuberings |
| Tube diameter | 200 mm |
| Dewcap diameter | 230 mm |
| Length of dewcap | 315 mm |
| Length during observing | 1390 mm |
