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.
Altair 2 inch Magnetic Filter Holder - M48F - M54M V2
Enables connection to flatteners and reduers with M48x0.75mm male thread, such as Altair PlanoStar or Starwave, and Altair or other cameras with M54x0.75mm female thread.
Optical path length is 17mm, therefore you need to incorporate this amount in your spacing calculations.
The maximum height the filter can protrude from the surface of the slider is 6.85mm. The threads of the filter are buried, therefore this measurement does not include the threads of the filter. There is allowance for maximum filter thread depth of 3.6mm.
Includes a 2" filter holder/slider. Additional 2" and 1.25" Filter Sliders are available separately.
119.00 €113.05 €
Estimated delivery time : 1-2 weeks (valid for new orders)
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.
549.00 €521.55 €
Estimated delivery time : 2-4 weeks (valid for new orders)
Capture the two main emission nebulae bands at the same time, whilst suppressing light pollution, moonlight, and airglow.
More data in less time, opening up your imaging window, even into the summer months when it isn't quite dark yet. Capture twice the Oiii data, whilst obtaining Sii to complement the Altair Ha Oiii DualBand filter.
Extremely steep bandpass yields maximum contrast in extreme light pollution: 3.5nm FHWM.
Halo suppression anti-reflective coating.
Can be used with One Shot Colour (OSC) CMOS and also with mono astronomical cameras for luminance data.
Includes UVIR blocking for both modified and un-modified DSLR cameras, plus an anti-reflection coating for halo suppression.
The 2" filter has standard M48x0.75mm thread, and fits inside the Altair Magnetic Filter holders, standard 2" filter wheels, plus the Altair Canon / Nikon DSLR lens to astro CMOS adaptors.
859.00 €816.05 €
Estimated delivery time : 2-4 weeks (valid for new orders)
Capture the two main emission nebulae bands at the same time, whilst suppressing light pollution, moonlight, and airglow.
More data in less time, opening up your imaging window, even into the summer months when it isn't quite dark yet. Capture twice the Oiii data, whilst obtaining Sii to complement the Altair Ha Oiii DualBand filter.
Extremely steep bandpass yields maximum contrast in extreme light pollution: 3.5nm FHWM.
Halo suppression anti-reflective coating.
Can be used with One Shot Colour (OSC) CMOS and also with mono astronomical cameras for luminance data.
Includes UVIR blocking for both modified and un-modified DSLR cameras, plus an anti-reflection coating for halo suppression.
The 2" filter has standard M48x0.75mm thread, and fits inside the Altair Magnetic Filter holders, standard 2" filter wheels, plus the Altair Canon / Nikon DSLR lens to astro CMOS adaptors.
449.00 €426.55 €
Estimated delivery time : 2-4 weeks (valid for new orders)
Capture the two main emission nebulae bands at the same time, whilst suppressing light pollution, moonlight, and airglow.
More data in less time, opening up your imaging window, even into the summer months when it isn't quite dark yet. Capture twice the Oiii data, whilst obtaining Sii to complement the Altair Ha Oiii DualBand filter.
Extremely steep bandpass yields maximum contrast in extreme light pollution: 3.5nm FHWM.
Halo suppression anti-reflective coating.
Can be used with One Shot Colour (OSC) CMOS and also with mono astronomical cameras for luminance data.
Includes UVIR blocking for both modified and un-modified DSLR cameras, plus an anti-reflection coating for halo suppression.
The 2" filter has standard M48x0.75mm thread, and fits inside the Altair Magnetic Filter holders, standard 2" filter wheels, plus the Altair Canon / Nikon DSLR lens to astro CMOS adaptors.
449.00 €426.55 €
Estimated delivery time : 2-4 weeks (valid for new orders)
The Altair Flat-Field 130mm F5.0 ED Quad APO Astrograph sets a new standard in image quality and colour correction. A separate reducer or field flattener is not required.
4890.00 €4645.50 €
Estimated delivery time : 1-4 weeks (valid for new orders)