ZWO Electronic 8 Position Filter Wheel - 1.25"/31 mm Sized

• A lightweight and low-profile filter wheel.
• Holds 1.25-inch mounted or 31 mm unmounted filters.
• Necessary for deep-sky imaging.

(سلسلة العقول الذكية كتاب كيف تعمل الأشياء (علم الفلك للمبتدئين

The Small Off-Axis Guider by QHY has 35 mm to the center point. It is a thin and solid design only being 10 mm thick. Adding an M42 thread adapter ring will add 3 mm for a total thickness of 13 mm. There are six 3 mm through holes in the OAG for direct connection to the QH-QHYCFW2 and QHY A-series camera.

The prism position can be adjusted and can be locked down to fix its position. The prism is 8 mm x 8 mm size and the aperture between the prism and mirror is 8 mm in diameter. The QH-QHYOAG has a multi-thread 1.25-inch focuser build in which has a locking thumbscrew to hold the guide camera after focusing.

QHY5L-II-M CMOS Planetary Monochrome Camera - QHY5L-II-M

Do you want to get started in astrophotography and are you searching for a color camera simple to use, compact, cheap but with high quality to photograph the planets and the Moon? The QHY5L-II color is the perfect camera for you. The sensor has a very good 1280 x 960 pixels resolution, allowing you to record, with the EZPlanetary software, excellent high-resolution images.

Although less sensitive than the same camera with monochrome sensor, the QHY5L-II color can also be used as a autoguider thanks to the integrated ST4 port and to the autoguide cable already provided in the package.

• Aptina One-third Inch MT9M034 CMOS Sensor.
• Pixel Array: 1280 x 960.
• Pixel size: 3.75 um.
• USB and ST4 interface.
• QE of 74%.
• Planetary, Solar and Deep-sky Imaging.

ZWO LRGB filter set designed for CCD/CMOS astrophotography.

Includes red, green and blue filters and a UV/IR-Cut 'L' filter.

Features: 

• Schott substrate material
• Thickness 1.1mm
• Fine-optically polished to achieve 1/4 wavefront surface finish
• 90% transmission at passband
• Infrared wavelength 700-1100nm cut-off
• Precision off-band blocking
• Multi-layer anti-reflection coating

• Excellent for planetary and deep-sky astrophotography
• Supports ASCOM and various ASCOM-compatible 3rd party software
• Step Motor, 7.5-degree step angle
• Load Capacity of up to 5 kg

• Lightweight design with 50 kg (110 lb) load capacity
• Easy to carry and transport inside your luggage
• Compatible with other mounts such as: iOptron GEM45 and GEM40, Rainbow Astro 135E, and Sky-Watcher AZ-GTi
• Tripod head plate offers three mounting points to match the AM5 head

Features

• German equatorial design, latitude range of 10° ~ 70°
• Ideal for both visual observation and astrophotography
• Low periodic error (< ± 10 arc seconds)
• Payload of 12.7 kg (28 lbs) with the mount-only weight of 4.5 kg (10 lbs)
• CNC machined and cast metal body
• Spring loaded gear system
• Large easy to use quick-lock gear clutches
• Stepper motor with low power consumption
• AccuAlign^TM calibrated polar scope
• Polar alignment routine for those who can’t see the Pole Star
• Go2Nova® 8409 controller with Advanced GOTONOVA® GOTO Technology
• Integrated ST-4 autoguiding port
• Built-in Wi-Fi
• USB port for firmware upgrade and computer control
• LiteRoc heavy-duty stainless steel tripod w/ vibration suppression pads (7.5kg)
• Die-cast metal tripod spreader with accessory tray
• Hard carrying case
• Optional 32-channel Global Positioning System (GPS)
• Optional iGuider^TM autoguiding system (#3360)

Tripod for iPANO/SkyGuider Pro/SkyTracker/SmartEQ/Cube

1.25" Stainless Steel tripod that fits the iOptron SkyGuider Pro, iPANO, SkyTracker/SkyTracker Pro, SmartEQ /Pro and SmartStar/Cube mount.

• Designed for SmartEQ, SkyTracker, and SkyGuider Mounts
• Height adjustable from 25" - 40"
• Weight capacity of 30 lbs
• Features include stainless steel locking leg spreaders and locking levers
• iOptron 1.25" Stainless Steel Tripod for SmartEQ & SkyTracker Mounts

Features

• German equatorial mount with innovative features
• Idea for both visual observation and astrophotography
• Maximum payload of 45 lbs (20 kg) with the mount weight of only 17.5 lbs (7.9 kg)
• Easy to use quick-lock gear clutches
• Integrated iPolar^TM electronic polar finder
• Low periodic error (< ± 7 arc seconds)
• Permanent periodic error correction (PPEC)
• Precision stepper motor for precise GOTO and accurate tracking
• Go2Nova® 8407+ controller with Advanced GOTONOVA® GOTO Technology and built-in heater
• Integrated ST-4 autoguiding port
• 32-channel Global Positioning System (GPS)
• USB communication port
• Cable management system
• 6" Losmandy-D & Vixen dual dovetail saddle
• All metal, CNC machined with red/black anodized
• Optional WiFi for mount control via SmartPhone/Tablet/Computer
• All new LiteRoc 1.75" tripod with improved stability and leg locks
• NEW iOptron subsidized TheSky Imaging Edition

ZWO 30mm f/4 Mini Guide Scope for ASI Cameras # 30120

• This 30 mm (1.18-inch) aperture ZWO Guide Scope is compatible with all ASI cameras.
• Optical Design: Doublet.
• Aperture: 30 mm (1.18 inches).
• Focal Ratio: f/4.
• Focal Length: 120 mm.
• Camera/Eyepiece Connection: M42x0.75.
• Back Focus: Adjustable, 0 to 20 mm.

ZWO 1.25" Ha SII OIII 7nm Narrowband Filter Set (ZWO-NB7NM1.25)

The three narrow band filters are ideal for photography of dim nebula. In addition, they suppress the light pollution.

The filters are homofocal with ZWO's L-RGB filter set, making them ideal for use in combination with these color filters.

H-alpha filter: has a bandpass of 7nm and passes light at 656nm wavelength, light transmission rate comes up to 80%. Best choice of narrowband H-alpha astrophotography filter for high-contrast imaging and revealing rich details of the nebula even in areas with strong light pollution,

OIII Filter: The narrowband O-III 3nm filter is designed for nebula observation allowing 3nm bandwidth of light centered on a wavelength of 500nm through, which corresponds to OIII emission lines, blocking out all other light.

SII filter: The narrowband S-II 7nm filter passes light at 672nm wavelength with a bandpass of 3nm which is designed for nebula fotography.

It is suitable for most emission nebulae, planetary nebulae and supernova remnants.

f you want the look of Hubble Space Telescope (HST) images, such as the famous “Pillars of Creation” (the Eagle Nebula, Messier 16), then the next filter to consider adding to your collection after H-a and OIII is the SII (es-two) or sulfur filter. The SII filter, like H-a, is a deep red filter near 672 nm. H-a, OIII and SII filters provide that Hubble look for many emission nebula. Again, tri-color narrowband imaging with these three filters can be done with the moon up, so your equipment is not sitting dormant for several weeks.

The half-width of 7nm is the optimal choice for astrophotography. The contrast of the nebula is raised significantly.

ZWO OIII 36mm Unmounted Filter

OIII, or doubly ionized oxygen, emits light in the blue/green, or teal portion of the spectrum near 500 nm. Planetary nebulae and supernova remnants emit most of their light in the OIII line.

ZWO H-a 36mm Unmounted Filter

Hydrogen-Alpha is the most dominant emission line in star-forming regions. H-Alpha light is created by atomic hydrogen, and is responsible for the red color seen in most nebulae.

ZWO SII 36mm Unmounted Filter

Sulfur is in the deep red of the spectrum near 672 nm. When combined with H-a and OIII, these three filters will produce images with colors that are reminiscent of those taken by the Hubble Space Telescope.

These ZWO 36mm filters are unmounted. ZWO narrowband filters are fine-optically polished to reach an accuracy of 1/4 wave. Their performance is further enhanced by multiple layers of anti-reflection coatings.

• 3 vibration suppression pads go under your tripod legs to stabilize your telescope and prevent unwanted shaking
• Made with Sorbothane® only available in the USA. Cheap imitations use silicon which do not absorb shock and may melt in the Sun.
• Engineered by Celestron specifically to dampen vibrations
• Works on any surface

Application and Performance:

• High transmittance and smallest bandwidth to maximize contrast
• Steep spectral profile minimizes halos around bright stars
• A single substrate to eliminate internal reflections
• Narrowband Objects: OIII Emission Nebulae, Planetary, Wolf Rayet Nebulae and Supernova Remnants
• Use in light polluted areas and dark sites
• Extends imaging time when the moon is up
• Antlia narrowband Pro filters can be used down to f/3 systems with minimal loss of signal
• All Antlia unmounted narrowband filters are edge blackened to eliminate internal reflections from stray light
• Superior optical reliability reduces post image processing
• This filter is only effective for deep sky objects that contain OIII emissions

Application and Performance:

• High transmittance and smallest bandwidth to maximize contrast
• Steep spectral profile minimizes halos around bright stars
• A single substrate to eliminate internal reflections
• Narrowband Objects: H-alpha Emission Nebulae, Planetary, Wolf Rayet Nebulae and Supernova Remnants
• Use in light polluted areas and dark sites
• Extends imaging time when the moon is up
• Antlia narrowband Pro filters can be used down to f/3 systems with minimal loss of signal
• All Antlia unmounted narrowband filters are edge blackened to eliminate internal reflections from stray light
• Superior optical reliability reduces post image processing
• This filter is only effective for deep sky objects that contain H-alpha emissions
  
  

Astrodon E-Series L-RGB Filters for better colors with KAF Sensors and Sony Sensors

♦ Set of 4 Filters L-RGB - 36mm unmounted

♦ Better colors with KAF8300, KAF3200, KAF6303, KAF16200, KAF16803 sensors, as well as most Sony and back-thinned sensors.

♦ Astrodon filters are coated to the edge

Application and Performance:

• High transmittance and smallest bandwidth to maximize contrast
• Steep spectral profile minimizes halos around bright stars
• A single substrate to eliminate internal reflections
• Narrowband Objects: SII Emission Nebulae, Planetary, Wolf-Rayet Nebulae and Supernova Remnants
• Use in light polluted areas and dark sites
• Extends imaging time when the moon is up
• Antlia narrowband Pro filters can be used down to f/3 systems with minimal loss of signal
• All Antlia unmounted narrowband filters are edge blackened to eliminate internal reflections from stray light
• Superior optical reliability reduces post image processing
• This filter is only effective for deep sky objects that contain SII emissions

Application and Performance:

1. Designed for monochrome CCD and CMOS cameras

2. Great imaging colors for celestial objects, galaxies, star clusters and nebulae

3. AR anti-reflection film design for secondary reflection and star halo reduction

4. R-Filter provides maximum transmission of H-alpha and S II emission

5. B/G overlap doubles the energy in the OIII line

6. Balanced RGB-design offer 1:1:1 exposure times for most telescope optical systems

7. All Antlia LRGB-V Pro filters are edge blackened to eliminate internal reflections from stray light

8. The substrate thickness of each of the four LRGB filers is maintained to tight tolerances

9. Not recommended for Solar observing and imaging

10. Not recommended for visual observation

1.25″ T-Mount Photography Camera Adapter

T-Adapter - Can Use Together with T-Ring - Connect a DSLR or SLR Camera to a Telescope

• Keep your optics clean with the innovative LensPen
• Use the soft retractable brush for removing loose particles and dust
• Clean smudges, fingerprints, pollen, and other sticky substances from the optics with the special cleaning element
• No liquids are used...nothing to spill or dry out
• The LensPen is safe and easy-to-use.  Keep one handy for all your optics!