Altair Astro
Altair Astro manufacturer of high quality astronomical accessories
Manufacturer in England of high quality accessories and distribution of CCD cameras. APM is a partially authorized dealer for Germany.
Narrowband H-Alpha, O-III and SII nebula filters from Altair for astrophotography with CMOS sensors for high contrast for telescopes with ~f/4.5
- optimized for CMOS sensors (Color and MONO)
- exact and narrow half-widths for optimal signal-to-noise ratio
- Identical filter thicknesses for homofocality
- Blackened edges
- The edge of the filter is sealed to prevent moisture penetration
- SiO2 coating for virtually unlimited lifetime
- Low-profile filter mount - height only 6 mm
- Certificate
1209.00 € 1088.10 €
Estimated delivery time : 1-2 weeks
The Altair Astro 3nm ULTRA filters are designed for astro imaging of nebulae with Mono CCD or CMOS cameras, blocking light pollution by cutting out the light pollution wavelengths. The filter blocks UV IR and has an anti-reflection AR coating to suppress halos around bright stars.
558.00 € 502.20 €
Estimated delivery time : 1-2 weeks
The Altair Astro 3nm ULTRA filters are designed for astro imaging of nebulae with Mono CCD or CMOS cameras, blocking light pollution by cutting out the light pollution wavelengths. The filter blocks UV IR and has an anti-reflection AR coating to suppress halos around bright stars.
558.00 € 502.20 €
Estimated delivery time : 1-2 weeks
The Altair Astro 3nm ULTRA filters are designed for astro imaging of nebulae with Mono CCD or CMOS cameras, blocking light pollution by cutting out the light pollution wavelengths. The filter blocks UV IR and has an anti-reflection AR coating to suppress halos around bright stars.
459.00 € 413.10 €
Estimated delivery time : 1-2 weeks
This filter transmits only the H and Oiii light from emission nebulae, with almost total suppression of unwanted light....
609.00 €
Estimated delivery time : 2-4 weeks
Altair 130mm Aperture Energy Rejection filter - Ha Hydrogen Alpha only D-ERF for 5" Refractors
Product Features:
- Reduces approx. 98% of heat reaching the optics to keep Etalon from drifting off-band and protect your equipment.
- 30-40nm FHWM Bandpass at H-alpha (H) wavelength of 656.28 nm (Full Width Half Minimum) Transmission: ~90%
- UVIR blocking OD3 0.1% @400-1100nm blocking over 98% of heat to your 3rd party Etalon at eyepiece or camera end, E.g. Daystar Quark). Please note it's your responsibility to use a proper commercial Etalon with this product, and to follow the manufacturer's instructions.
- Visible light blocking: OD4 0.01% @400-700nm to reduce reflection effects and over 98% of heat.
- Diameter 140mm Thickness 12.0mm
- Multilayer coatings with SiO2 protective overcoat.
- 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 and will not scratch or damage your telescope. It also won't alter the balance as much as an aluminium cell.
999.00 €
Estimated delivery time : 2-4 weeks
The Altair Dichroic Solar Energy Rejection Filter or D-ERF protects your telescope and solar imaging equipment from excessive heat build-up when solar imaging ...
1588.00 €
Estimated delivery time : 1-2 weeks
This reducer / field flattener is designed to work with the Altair Astro Wave 150EDF refractors with 3.7" focuser. It has an M48 rear thread adaptor for connecting your DSLR or CCD camera.
459.00 €
Estimated delivery time : 2-4 weeks
The Altair Dichroic Solar Energy Rejection Filter or D-ERF protects your telescope and solar imaging equipment from excessive heat build-up when solar imaging or observing with your Daystar Hydrogen Alpha Quark, or other Hydrogen Alpha Etalon filters.
- Reduces approx. 98% of heat reaching the optics to keep Etalon from drifting off-band and protect your equipment.
- 30nm FHWM Bandpass at H-alpha (H) wavelength of 656.28 nm (Full Width Half Minimum) Transmission: ~95.5%
- 40nm FHWM Bandpass with CWL at 395nm covering Calcium H-Line and Calcium K-Line wavelengths. Transmission: ~90.5%
- UVIR blocking OD3 0.1% @400-1100nm blocking over 98% of heat to your 3rd party Etalon at eyepiece or camera end, E.g. Daystar Quark). Please note it's your responsibility to use a proper commercial Etalon with this product, and to follow the manufacturer's instructions.
- Visible light blocking: OD4 0.01% @400-700nm to reduce reflection effects and over 98% of heat.
- Diameter 140mm Thickness 12.0mm (required to achieve surface precision)
- Multilayer coatings with SiO2 protective overcoat.
- 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.
989.00 €
Estimated delivery time : 2-4 weeks
The Altair 395nm NUV filter selectively passes light of the two main Calcium wavelengths emitted by the sun: CA-K line at 393.37nm, and the CA-H line at 396.85nm.
199.00 € 179.00 €
Estimated delivery time : 2-4 weeks
The Altair 2" Solar Continuum filter Enhances sunspots, granulation, and fine photosphere detail. For use with Baader Solar Filter or Herschel Wedge.
189.00 € 139.00 €
Estimated delivery time : 2-4 weeks
The Altair 2" premium diagonal with positive-lock system grips 2" accessories tightly with a small rotation of the top knurled ring, keeping them precisely centred.
189.00 € 170.00 €
Estimated delivery time : 2-4 weeks
