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Baader SLOAN/SDSS g'-Filter – photometric

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€148.00

Price excl. German VAT tax (19%): € 124.37

Filter size:None

Baader SLOAN-g' Bandpass Filter, suitable from f/15 to f/1.8
SLOAN/SDSS (ugriz’) photometric filter with transmission according to SLOAN-specification
Manufactured with most advanced ion beam coating technology / Daylight-Proof
Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
Equally suitable for modern CMOS cameras as well as for older CCD camera technologies

Create your own FILTER-LIBRARY:

This filter - except for size 100x100x3 mm - (in case of a filter set: each individual filter) comes in a Filterbox for all filters up to 50x50mm, stackable on all sides (#2459253 , € 7,- ) , to create your individual "filter-library", offering a secure place and immediate access for all Baader-filters. Putting this "library" into a carry bag will allow you to have all your loose filters stored safely in the field and be handy always.

This new generation of Baader Filters features:

CMOS-optimierte Baader Filter

Reflex-Blocker^™ coatings, for largest ever freedom from halos, even under most adverse conditions concerning aux-optics
Identical filter thickness to existing standards, with utmost care for parfocality
Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim, to additionally eliminate any reflection due to light falling onto the edge of a filter
Each filter coated individually, with sealed coating edge (NOT cut out of a larger plate with coatings left exposed, read more)
Life-Coat™: evermore hard coatings to enable a non-aging coating for life – even in a most adverse environment

Further information, test reviews and image results can be found here:

Baader Photometric Filters: Dark nebulae appear in a new light 04. December 2023 Yannick Akar

Amateur Astronomers take a look through the Cloud Cover of Venus with our SLOAN Filters 09. June 2022 Michael Risch

First Light with Baader SDSS filters by S. Ziegenbalg 23. February 2022 Team Baader Planetarium

Now available: New Baader UBVRI and SLOAN/SDSS (ugriz’) Photometric Filters 12. October 2021 Team Baader Planetarium

New CMOS-optimized Baader Filters 08. May 2021 Team Baader Planetarium

Baader SLOAN/SDSS g'-Filter – photometric

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Customer Reviews

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Philippe Cambre

2022-10-20 16:50:21

Rating

Excellent filter quality and useful for planetary imaging

I'm using the BAADER SLOAN r' and g' along with the Baader CMOS L filter with mono camera for planetary imaging luminance and mix them with Winjupos software. FOr colors, I just use the Baader CMOS L filter with another color camera and put the color on the luminance afterwards. The SLOAN r' (= red + part of green) is the less sensitive to medium seeing and can help you catch some nice details especially on North & South pole of Jupiter for instance. Using L CMOS filter requires good seeing. And when the seeing is excellent, the SLOAN g' (blue + part of green) can give you the best resolution and make you compete with bigger apertures. As Baader filters have the same thickness and as my Newtonian s perfecty corrected in blue (contrary to SC for instance because of spherochromatism) the focus point is not changing while I change from one filter to another. It makes things also a little easier. I'm definitely happy with these filters!

Sara. R / May 22, 20241 Answer

FAQ - Team Baader / November 25, 20221 Answer

For (much) larger DSLR lens sizes up to 100 mm aperture you might consider our 100x100x3 mm square photometric SLOAN-Filters: https://www.baader-planetarium.com/en/filters/photometric-filters.html. Especially for work in UV, the SLOAN-U filter (#2961707U https://www.baader-planetarium.com/en/filters/photometric-filters/sloansdss-u%27-filter-%E2%80%93-photometrisch.html#425=1695) is a viable alternative to our time proven U-Venus-filters (https://www.baader-planetarium.com/en/baader-u-filter-(venus-and-uv---350nm).html") - offering a very similar transmission window but up to 100 mm sq size: https://www.baader-planetarium.com/en/sloansdss-u%27-filter-%E2%80%93-photometrisch.html There even is a clever way to hold that huge size filter in front of most any DSLR-lens by obtaining this holder and doing a minimal change that converts this holder from accepting two filters of 2 mm thickness into accepting just one filter w. 3 mm thickness - with a mere screwdriver (sorry for the german Amazon-link): https://www.amazon.de/dp/B07FL3YNHB?pd_rd_i=B08KVZ8VWT&pf_rd_p=5f9972c1-184d-4e29-822a-e867654f66c0&pf_rd_r=5T5PNXXSSA4JVTRSN3QK&pd_rd_wg=6HR08&pd_rd_w=dE1wF&pd_rd_r=e8cc1e1b-747d-4193-acdf-981d7f2e81e4&th=1
Baader Web Team / November 25, 2022
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Mark Salisbury / April 11, 20221 Answer

The backfocus is mainly affected by the filter thickness. The coating layers have only a negligible effect on the backfocus. Therefore, the rule of thumb is that the backfocus distance is extended by 1/3 of the filter thickness (the focal plane is shifted extrafocally). All our filters (with only a few exceptions where the thickness is explicitly indicated) from 1.25" up to and including 2" are 2 mm thick. They increase the backfocus by 0.67 mm. Filters larger than 2" have a thickness of 3 mm, which means they increase the backfocus by 1 mm.
Baader Web Team / April 21, 2022
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Waqas Ahmad / October 10, 20161 Answer

Our largest cell mounted filters measure 2" (50.8mm) in mechanical diameter (having a metric thread of M48). The optical clear aperture is 46 mm. In order to ease the adaptation of our 2" filters onto most camera lenses, we do produce a 2" filter-holder, to convert from the ASTRO-2" Standard (M48) into a more common photo-standard of SP54 mm ("SP"means this is not a metric thread). For adapting any cell mounted Baader 2 inch Filter onto a camera lens with 52mm front filter thread you will need: #2408166 Baader DSLR 2" Filter-Holder M48 / SP54: https://www.baader-planetarium.com/en/baader-dslr-2%22-filter-holder-m48sp54.html #2958052 Baader Lens-Adapter-Ring SP54 / M52: https://www.baader-planetarium.com/en/baader-hyperion-dt-ring-sp54m52-for-dtadapter-iiandiii-and-hyperion-eyepieces.html Based on the SP54 thread, we offer many more adapters for various camera threads, our so-called Hyperion DT-rings. https://www.baader-planetarium.com/en/catalogsearch/result/?q=sp54
Baader Web Team / October 11, 2016
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Baader SLOAN/SDSS g'-Filter – photometric

Create your own FILTER-LIBRARY:

This new generation of Baader Filters features:

Further information, test reviews and image results can be found here:

Baader SLOAN/SDSS g'-Filter – photometric

Customer Reviews

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Service & Company

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Baader SLOAN/SDSS g'-Filter – photometric

Create your own FILTER-LIBRARY:

This new generation of Baader Filters features:

Further information, test reviews and image results can be found here:

Baader SLOAN/SDSS g'-Filter – photometric

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Baader Photometric Filters: Dark nebulae appear in a new light

DART impact - NASA used large 100mm Baader Bessel filters

Amateur Astronomers take a look through the Cloud Cover of Venus with our SLOAN Filters

First Light with Baader SDSS filters by S. Ziegenbalg

Now available: New Baader UBVRI and SLOAN/SDSS (ugriz') Photometric Filters

APF-R : Absolute Point of Focus

Customer Reviews

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