New products

• Reduces approx. 98% of heat reaching the optics to keep Etalon from drifting off-band and protects your expensive equipment.
• Spectrographic Transmission test report included showing the performance of each individual filter.
• 32-36nm FHWM Bandpass at H-alpha wavelength of 656.28 nm Transmission ~ 95-98% (Tolerance is about 3%).
• 32-36nm FHWM Bandpass with CWL at 395nm covering Calcium H-Line and Calcium K-Line wavelengths. Transmission - 85-90% (Tolerance is about 3%).
• Visible light blocking (area of maximum solar radiation and heat generation): Average OD4 ~0.001%T @400-700nm.
• UVIR average blocking OD5 ~0.001%T between 200-1100nm
• Extra Deep IR Blocking up to 1700nm Average OD2 (1%) (lowest solar radiation).
• Quartz Element Diameter 95mm, Thickness 8mm, Weight 125g
• Multilayer coatings with SiO2 protective overcoat for a long life and easy cleaning.
• ERF Holder cell included with soft tip threaded knobs. Tough and very light, easy to disassemble for cleaning the filter with optical wipes. Cell does not put any tension on the optics. For this reason the glass element is able to move slightly within the cell by about 0.5mm.

The bracket allows the ZWO EAF to be connected to different telescopes and enables self-adaptation.

• Directly suitable for Takahashi, Skywatcher Esprit, Vixen VC200L and Orion ED80T
• Adaptable to different focusers with minimal changes
• Additional 4 mm coupler

• Multi-port Design: The astro powerbox has 6 DC outputs, supporting up to 10A. 2 USB3.1 ports for high-speed camera readout, 1 USB2.0 and 1 Type-C port for devices like equatorial mounts & guide cameras. 2 USB ports share 5V 8A power, perfect for dew heaters;
• Avoid Cable Clutter: As a data transmission and power supply transfer center, it greatly reduces the use of cables;
• Design for Portability: This compact powerbox weighs just 0.28 lb and measures 3.8 x 2.4 x 1 inches;
• Safe and Secure:Power pack equipped with built-in ESD protection, reverse polarity prevention, and efficient filtering to prevent short circuits;
• Versatile Mounting Options: SV241 features M4 and UNC 1/4-20 screw holes on the bottom.

This extender is suitable for the Takahashi fluorite apochromats FS-60CB, FS-60Q, FC-76D (both versions), FC-76Q, and FC-100D (all versions). However, it is also compatible with the older Sky-90 and FSQ-106 fluorite models, which are no longer manufactured. Of course, it can also be used with many other devices as a moderate focal length extension.

•  Connection: M43x0.75(pos)
• Extension factor: 1.6x
• Number of lenses: 5

The compact FS-60CB Apo can be upgraded to a 60/600 f/10 quadruplet Apo with this 1.7x Q module. Optically, this version is superior to the FS-60CB ... 

• Extension factor: 1.7x
• Number of lenses: 2

• Connection: M56x0.75
• Extension factor: 1.04x
• Number of lenses: 2

With this precisely fitting adapter, the QHY PoleMaster electronic polar finder can be securely and stably attached to the ZWO AM5N/AM3 mount. Advantages at a glance: 

• Suitable for ZWO AM3 mount
• Secure mounting for the QHY PoleMaster
• High-quality 3D printed from PETG
• UV and temperature resistant

Takahashi Extension Tube (FL), Short Distance Ring

• Connection (object side): M56x0,75(neg)
• Connection (observer side): M56x0,75(pos)
• lightpass: 17,5mm
• Shipping weight:  1kg

Takahashi offers matching 1:7 microfocusers for all telescopes with normal focusers.

• TOA-130(N)S
• TSA-102, TSA-120
• FC-76DS, FC-76DC
• FS-60CB, FS-60Q, FS-60C, FOA-60(Q)
• FS-60CB, FC-76DP
• SKY90
• FS-78, 102, 128N
• FC-65, 76, 100, 100N, 125N
• FCT-65
• MT-130, 160, 200
• Epsilon 130, 160, 180
• Mewlon mit Okularauszug TKA00700

Takahashi offers rotating camera mounts for its telescopes, which are necessary because most of the company's focusers are not rotatable. However, this rotator also makes sense visually, as it allows the ZSP or other accessories to be conveniently rotated into the desired position. The quality is so high that there is no play even when the screw is loosened.

• Connection on the telescope side: M56x0.75 internal thread
• Connection on the camera side: M56x0.75 external thread
• Light path: 12.3 mm
• Weight: 110 g

2'' Connector Takahashi FS-60/78 FC-76DC und FC-100 DC, TKA21110

• Connection (object side): M56x0,75(neg)
• Connection (observer side): 50,8mm(neg)
• lightpass: 39mm

The T2 adapter turns a T2 female thread into a T2 male thread and provides a clean stop

• With this adapter you can connect two adapters with T2 female thread.
• Two T2 (M42x0.75) male threads with 3.5 mm length each
• Optically effective height only 2 mm - this is the thickness of the counter ring
• Free passage 37.5 mm - maximum possible clear aperture with T2

With this adapter, you can attach 1.25" eyepieces to to the T2-system

• Telescope side connection: T2 (M42x0.75 mm)
• Eyepiece side connectin: 1.25" receptacle
• Solid locking with knurled screw

Variable projection adapter for planetary and lunar photography - accomodates 1.25" eyepieces

• change the magnification by extending the adapter
• 1.25" connection to telescope
• accomodates 1.25" eyepieces up to 35 mm housing diameter
• T2 connector at camera side (T2 rings are optionall) for your DSLR camera
• two adapters in one - a 1.25" prime focus adapter and a variable eyepiece holder for eyepiece projection

The ASI 294MM is the first camera with the newest Sony sensor IMX294. Ideal astro camera for solar, lunar and planetary photography and for deep sky.

• Sensor: Sony 4/3" CMOS MONO Sensor IMX492
• Sensor diagonal 23 mm
• Locked mode: 4.63 µm pixel size - 4144 x 2822 pixels
• Unlocked mode: 2.3 µm pixel size - 8288 x 5644 pixels
• Short download time through USB 3.0 - can also be used with USB 2.0
• AR protection window built-in - full transmission even in infrared
• Connection: T2, 1,25" and 2"
• Extremely high sensitivity through "back-illuminated" sensor. QE more than 75%
• You can photograph dim nebulae and galaxies with only 30 seconds exposure time.
• Extremely short exposure times allows high-resolution images of sun, moon and planets. The seeing is "frozen".
• xtensive scope of delivery

This mechanism compensates tilted focalplanes, focusers, accessories and camera sensors - unsharp corners are avoided.

• Connection via T2-thread
• Only 11 mm optical path from T2 female to T2 female
• T2 conversion adapter included - converts the T2 female to a T2 male thread
• Stable metal design
• Easy adjustment without tools

Self-centering T2 rotation and quick coupling for astrophotography

• Thread on the telescope side: T2 (M42x0.75) Internal thread
• Thread on the camera side: T2 (M42x0.75) External thread
• Only 5.5 mm short (without external thread) - ideal for short adaptations
• The adapter is self-centering, you remain on the optical axis.
• Practical clamping with knurled screws, also works with gloves
• Sturdy construction, we recommend the adapter for accessories up to approx. 1.5 kg

The all-sky camera offers a very high resolution and is particularly suitable for meteor photography.

• Sensor: 1/1.6" CMOS IMX676 with 12.6 megapixel resolution
• Sensor size: 7.1 mm x 7.1 mm - diagonal: 10.05 mm
• Very high resolution: 2.0 µm pixel size
• SONY STARVIS 2 technology - back illuminated pixel technology
• With approx. 83 % QE a high sensitivity for short exposure times
• USB 3.0 for fast image download
• Very low readout noise (from 0.56 e-)
• Already suitable for EAA due to frame rate of 31.2 fps
  12 bit ADC
• No more amplifier glow detectable
• Passive cooling with heat dissipation to prevent the sensor from heating up during long exposures
  Good suitability for meteor and other all-sky images
• Wide field lens (detachable) included in scope of delivery
• UV/IR block filter built in, thus well usable with refractors and camera lenses
• ST4-level autoguiding interface included

Latest version 4.0

The OCAL collimator version 4.0 is a further development of the popular OCAL V3.0, OCAL PRO and 3.0 MAX collimators. The accuracy of the devices has been further improved. Thanks to improved optics and state-of-the-art manufacturing processes, the OCAL V4.0 now covers all focal lengths. In addition, we have succeeded in bringing the OCAL 4.0 onto the market at a slightly lower price.

• The new version 4.0 of the OCAL collimator uses a larger front lens and a CMOS sensor.
• Resolution and imaging performance have been further improved compared to all previous models.
• Unlike the first previous versions, the OCAL V4.0 has a decoupled camera module in industrial quality.
• The improved optics of the OCAL Version 4.0 ensure that critical areas can now be focused even better.
• The area in the centre around the OCAL lens is now easier to distinguish from the background.
• The clarity of the image has been significantly improved.
• Suitable for Windows, Android and Apple Mac.

The corrector from Skywatcher reduces the focal length of the Evostar-150EDX and improves the image in the field

• Suitable for Skywatcher Evostar-150EDX
• Shortening factor 0.77x
• The focal length of 1200 mm is reduced to 924 mm
• The focal ratio improves from f/8 to f/6.16
• Is screwed to the focuser
• Connection on the camera side - M48x0.75 male thread
• Working distance - 55 mm

The powerful ED apo is suitable for observing and astrophotography with an high-contrast image.

• 150 mm aperture, 1200 mm focal length, focal ratio f/8
• High image quality thanks to extra-low dispersion glass FPL53 (Ohara, Japan) and matching glass from Schott
• Highly effective coating for maximum transmission and minimum reflections
• Large rack and pinion focuser with 11:1 reduction for sensitive focusing
• 360° rotation adapter
• Tube in traditional white - heats up less during the day and is more visible at night

120mm (4.75”) f/900 ED Apochromatic Refractor Telescope

• 120 mm aperture, 900 mm focal length, focal ratio f/7.5
• High image quality thanks to extra-low dispersion glass FPL53 (Ohara, Japan) and matching glass from Schott
• Highly effective coating for maximum transmission and minimum reflections
• Large Crayford focuser with 11:1 reduction for sensitive focusing
• 360° rotation adapter
• Tube in traditional white - heats up less during the day and is more visible at night

The corrector from Skywatcher reduces the focal length of the Evostar-100EDX and Esprit-70EDX and improves the image in the field.

• Suitable for Skywatcher Evostar-100EDX and Esprit-70EDX
• Shortening factor 0.92x
• Is screwed to the focuser
• Connection at the camera side - M48x0.75 male thread
• Working distance - 55 mm

100 mm (4”) f/700 ED apochromatic refractor telescope

• Maximum useful magnification: 200x
• Aperture: 100 mm
• Focal length: 700 mm (f/7)
• Dual-speed 11:1 2" Crayford focuser
• 2.8" extension tube with scale and 360º rotation adapter
• Multi-coated lens with MHTC coating
• Slide-in dew cap
• 2" eyepiece connection
• Viewfinder shoe compatible with all Sky-Watcher viewfinders
• Tube rings with handle
• 45 mm prism rail
• Aluminium OTA with light shields
• OTA length: 570 mm (dew cap inserted), 675 mm (dew cap extended)
• OTA weight: 5.5 kg

Translated with DeepL.com (free version)

• Objective Lens Diameter: 80mm
• Telescope Focal Length: 600mm (f/7.5)
• Dual-Speed 11:1 2” Crayford Focuser (Backlash-Free)
• 2.8" Indexed Focuser Drawtube with 360º Rotatable Adaptor
• Multi-Coated Objective Lens with MHTC coatings
• Image Height 30mm (with optional reducer/flattener)
• Retractable Dew Shield
• Drawtube Adaptor to accept 2" Star Diagonal
• Finderscope Mounting Shoe (compatible with ALL Sky-Watcher finderscopes)
• Supplied with Tube Rings with Carrying handle

• 40x magnification for high detail resolution
• Large exit pupil for bright image even at the onset of twilight
• Rubber-armored, waterproof and nitrogen-filled - robust and fog-free
• Single eyepiece focusing for individual focusing
• Porro prisms provide a "spatial impression" even at longer distances