TheTS 70mm f6.78 Quad is part of the Imaging Star Line and an ideal travel telescope for all photographers.

The Apo is very well corrected for imaging and also offers good visual performance.

Magnifications up to 150x are handled very well by the ED lens, chromatic aberration is significantly reduced. This TS 70mm f6.78 Quad is recommended for all nature observers, photographers and amateur astronomers who are looking for a compact telescope that does everything well.

The length of only 30cm (with retracted dew cap) makes the Apo very easy to transport in its case.

Advantages of the TS Imaging Star 70mm ED quadruplet:

– very good field correction with the built in 2 element corrector
– camera sensors up to 32mm diagonal are covered
– 2 “dual speed Crayford allows photography and observation
– 360 ° rotation of the drawer for the image positioning
– flexible multifunction connection plate for direct attachment to camera tripods and mounts
– Well corrected doublet lens with two special glasses (1x lanthanum) for a clear contrasty image

Two inch Crayford focuser with 1:10 micro reduction

The 2 “Crayford keeps even heavy accessories secure by using reinforced ball bearings It guarantees a very precise adjustment with 1:10 micro reduction. If you have focus set accurately you can fix the position with a knurled screw. Long exposure times are possible without adjusting focus.

Imaging with the TS 70mm f6.78 Quad:

Just connect your DSLR or CCD camera through a 2 “focal adapter or via the M48 screw adapter.

This Apo is  optimized for imaging, but it also offers very good performance for visual observation.

The focal position allows the use of 1.25 “diagonals or Amici prism for erecting the image.

You can get, eg with a 32mm Super Plössl, a gigantic field of view of 3.5 ° at only 14x magnification.

You have the perfect overview.

With a 3mm Planetary eyepiece you get 148x magnification and can observe details on the moon and planets very well.

Technical data: –

• Aperture 70mm – 474mm focal length 
• F ratio f6.78 – lens doublet lens with two special glasses (1x lanthanum) for good color correction 
• Multi-coating on each glass-air surface 
• Focuser 2 “Crayford Dual Speed ​​reduction with reduction to 1.25” 
• 310mm length with retracted dew cap 
• Photographic resolution 1.65 ” 
• Visual limiting magnitude 11,9Mag
• Weight 2.5kg 
• Photographically usable field with full illumination of 32mm diameter

A carrying case is included!

The post TS 70mm f6.78 Quad appeared first on Modern Astronomy.

 Aperture 50mm – 330mm focal length – Focal Ratio f6.6 – 50mm ED doublet lens with an air gap

The TS 50mm ED APO from Teleskop-Service  provides an image with pure colours.

This compact telescope is ideal for day or night observation.

At the same time the refractor is also a bright and compact telephoto lens with 330mm focal length for digital cameras.

The refractor telescope is a real trip with transport length of only 25cm and weight of 1270 grams.

Nevertheless, it has all the advantages of a professional astronomical telescope.

Features of the TS 50mm f6.6 ED Apo: – 50mm ED lens – zweielementig with air gap – for contrast imaging – particularly compact by retractable dew – Transport length only 250 mm – high quality CNC extract with 45mm free aperture, 1:10 micro reduction, 360 ° rotation – Full coverage and good field corrector for digital cameras to APS-C format – Gigantic field of more than 5 ° (10x the Full Moon next to each other) , the CNC extension with SC thread Connection: The CNC tilting eyepiece also holds heavy cameras or without eyepieces. The central screw fixes the desired pull-out position. This is very convenient for photography. By 1:10 micro reduction can be particularly accurate focusing and meet 100% the exact focus point. The focuser offers the SC connector for additional adaptations and a reduction to 1.25 “for visual observation.

The TS 50mm ED Apo f6.6 as a telescope or spotting scope for nature observation: For daytime use we recommend an Amici prism for an upright and laterally correct image (as with binoculars). The pleasant view will allow for hours of relaxed observing at a contrast performance that is normally achieved only with considerably more expensive APO spotting telescopes. For night observation we recommend a quality dielectric 1.25 “diagonal with 99% reflection or T2 prism, to preserve maximum light and contrast.

A few recommendations for meaningful magnifications: 10.3 x magnification .. – 5 ° field of view – Part No. TSSP32 … 32mm Super Plössl -an excellent overview magnification for maximum field of view – very nice for the Overview for astronomical observations but also for nature watching. 27.5 times magnification – 2.5 ° field of view – Part No. TSWA12 … 12mm wide-angle eyepiece with 70 ° field for medium magnification and resolution.. 41.2 times magnification – field 1, 4 ° – Art. Nr. NED8 … 8mm wide angle with 60 ° field of vision for more resolution – very suitable for bird watching, when it comes to details. 66 x magnification – 0.9 ° field of view – Part No. NED5… .. 5mm wide angle with 60 ° field of view for a very high resolution – for maximum detail recognition in the plumage of birds 103 times magnification – 0.58 ° field of view – Part No. HR3 … 3.2mm Planetenokular with 60 ° field of astronomical observations.. (Moon, planets, double stars …)

The TS 50mm ED APO as fast aperture 330mm f / 6.6 telephoto lens: With the optional T-adapter and T2 ring you can connect your digital camera directly to the ED Apo and get a bright and high-contrast telephoto lens with the following data:– Focal length: 330mm – fixed iris: f6.6 – Focusing: manually with 1:10 micro reduction – more precise than a classical telephoto lens you can Apo Tele still operate from the open hand. . Of course, you also have a 1/4 “tripod connection The special feature is the focus area of about five meters to infinity.

The TS 50mm ED APO as a super-seeker and guide scope for astrophotography:

The TS 50mm f6.6 APO refractor makes a Super viewfinder with outstanding image quality and a superb guiding scope with the optional viewfinder mounting.

Technical data for the TS 50mm f6.6 ED Apo: – opening: 50mm – Focal Length: 330mm – aperture ratio : f 6.6 – Tube: Transport length 250mm / diameter 60,9mm / weight 1270 grams – Focuser: CNC extract with SC thread connector and 1.25 “connection with micrometer scale – 1:10 Micro

Supplied with the TS 50mm f6.6 ED Apo: – optical tube with eyepiece – cover for the lens and eyepiece – CNC pipe clamp with 1/4 “tripod mount – Prism rail (GP Level) with slotted holes and 1/4 “tripod mount – Viewfinder shoe on pipe clamp for standard Viewfinder (Vixen, Skywatcher, GSO …) eyepieces, Zenit prisms and adapters are not included.

The post TS 50mm f6.6 APO Refractor appeared first on Modern Astronomy.