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Astronomik ProPlanet 642 BP IR-Pass Filter - 1.25"

SKU : AK-8H00K8

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  • Astronomik ProPlanet 642 BP IR-Pass Filter - 1.25"

    Astronomik's family of ProPlanet IR-pass filters welcomes a new member. The Astronomik ProPlanet 642 BP (Bandpass) has an array of possible functions including daylight IR photography, high resolution lunar and planetary imaging, and for beautiful astro-images of deep sky objects in H-Alpha regions.

    This filter provides a 200nm spectral window from 642nm to 842nm. Unlike ProPlanet 742 and 807 filters, the 642 will obstruct the longer infrared. While this gives you three filter options of imaging in the IR, many times the Astronomik ProPlanet 642 BP will be the ideal option for the highest quality image.

    Astronomik ProPlanet 642 BP Filter Highlights...

    The Astronomik ProPlanet 642 BP acts as three filters in one! This filter can be a great asset for daylight IR-imaging with a digital camera, lessening seeing effects and improving contrast when utilized for lunar and planetary imaging, and as a low cost option for those who want to begin astrophotography of deep sky objects in H-Alpha areas.

    Daylight IR-imaging:

    • High contrast images with excellent interpretation of colors
    • Clear "Wood-Effect" images
    • Longer IR hot spot eliminated
    • Short exposure times, similar to normal VIS-imaging
    • Ideal option for infrared video

    High resolution lunar and planetary imaging:

    • Short exposure times
    • Sufficient reduction of seeing effects
    • Heightened contrast
    • Longer IR blocking provides razor sharp images with no ghosting

    Deep-sky astrophotography of H-Alpha regions:

    • Peak transmission of the H-alpha line at 656nm
    • Approximately 40nm FWHM with astro-modified DSLR cameras
    • Incredible contrast despite light polluted environments or moonlight
    • Low cost filter for those interested in getting started with H-alpha imaging
    • Effortless focusing through camera display and LiveView!

    Astronomik ProPlanet 642 BP IR-Pass Filter Specifications...

    • Higher than 96% transmission for wavelengths of 642nm to 840nm
    • Intercepts wavelengths between 350nm and 630nm
    • Parfocal with other Astronomik filters
    • 1mm glass thickness
    • Entirely resistant to high humidity, scratches, and aging impact
    • Diffraction limited, the filter will not lessen the optical performance of your telescope!
    • Astronomik filters are presented in a high-quality, long lasting, filter box
    • Since 2008 Astronomik filters have featured a completely new design. Halos or bizarre reflections are a thing of the past.

    Astronomik Product Number: P642-1

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  • 5L-II
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Jon G.
United States United States

Purchased to improve guiding... urban skies. Coupled with a QHY 5L-II and ZWO OAG and fits well and first time out did seem to improve guiding. As always, prompt delivery and reasonable price from OPT.

Jared H.
United States United States

This works perfectly

This product works perfectly for what I wanted it for - planetary and lunar in IR

william j.
United States

Desant filter

It works somewhat on mars and Saturn but leaves it discolored. Woks great on the moon. Not had a chance to use on nebulas yet due to weather. Cant really see a lot of difference in turbulence.

Robert J.
United States

Best for planets7

My view of Saturn and Jupiter was as if I never saw them before.

Kevin G.
United States

Astronomik ProPlanet 642 BP IR-Pass Filter

I've only had one night out with the ProPlanet 642 IR-pass filter but the results were excellent. I imaged the 3-day-old waxing crescent Moon on an evening with really bad seeing. While visually the Moon and planets were disappointing, I did capture a very clear image with Mare Crisium and craters Langrenus and Petavius showing details. Mind you I did take about 3000 frames and chose only 1, but at f/7 at 1/250 sec. (SV110 ED Doublet and ZWO ASI178 Mono camera, prime focus) the results were very satisfying, even with the sun was still above the horizon. I'm looking forward to imaging Mars during the July 2018 opposition using the C14. Thanks OPT!

United States

Hard to find filter

Had a hard time finding the in-demand AK642 filter. Glad to see Opt had in stock - was in my hands within a few days, even coming form CA to OH. Also, not my first purchase from Opt, never disappointed.