Home /
Baader RGB G-Filter 1¼" – CMOS-optimized

Baader RGB G-Filter 1¼" – CMOS-optimized

More Views

Images uploaded by Customers

No customer Image uploads yet. Add Your Review with Images

Baader RGB G-Filter 1¼" – CMOS-optimized

Please choose product variant below to see price and SKU number

€ 95.00 Price excl. German VAT tax (19%): € 79.83

Please choose product variant below to see stock status

Be the first to review this product

Which side should face the telescope?

Baader CMOS RGB-G (490 – 580 nm) Bandpass Filter, suitable from f/15 to f/1.8
Anti-reflection RGB filter (red/green/blue) with extremely high transmission of the respective color channel, thus simultaneously reducing stray light and reflections to an unprecedented level
Balanced RGB design allows subframes to be taken with the same exposure time – extremely important for automated imaging tasks
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
Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

*Filter size:

* Required Fields

€ 95.00 Price excl. German VAT tax (19%): € 79.83

Qty:

Product Questions and Answers

Do you have a question about this product? Then we would like to ask you to first look through the existing questions and answers, most likely your question has already been answered and you will get the desired information much faster this way. Your question is not listed? Then please click on the button "Ask a question".

What's the actual size of your 2" filters in "mm" with and without frame/ring? What step down adapter is suggested from a 52 mm to "-- mm"?

Question by: Waqas Ahmad on Oct 10, 2016 7:54:00 PM | 1 Answer(s)

Rating of Question

180

What are the threads and pitch of your 1.25" and 2" filters?

Question by: Anders G. on Sep 20, 2017 12:55:00 PM | 1 Answer(s)

Rating of Question

Our 1.25" filters have a M28.5 male (and M28.5 front female) thread / our 2" filters have a M48 male (and M48 front female) thread

Both thread sizes come with our proprietary pitch - which is not the same for the female and male threads.
This is our own proprietary "emergency solution" for uniting a world were manufacturers all over the world copy from each other - to the point that there are almost a dozen different pitches in use for male and female threads. Traditionally US-companies used to do a UNF-based pitch and the rest of the world went for metric threads - but these do vary from 0.5 to 0.75.

For this reason it does not make sense to publish our non standard pitch because our pitch is made to cope with all existing metric and US-pitch standards - and as said - our solution has evolved from sheer necessity. It is a mixture of a queer pitch and under-/over-dimensioning . We will not want to declare this as a standard and get bashed up for it. It works for us and is a result of 20 years adaptation to fit our filters onto all crazy threads we have seen. And inspite of this - every now and then there comes another "dragonboat-eyepiece" were even our filters may not fit...

Answer by: Baader Web Team (Admin) on Sep 22, 2017 1:43:00 PM

Rate Answer

You must be logged in to answer questions.

What is the actual dimensions of your 65mm x 65mm filters, for instance, the Baader RGB R-Filter 65x65mm – CMOS-optimized

Question by: R. Paulson on Jan 31, 2024 6:24:00 AM | 1 Answer(s)

Rating of Question

Description

Details

This new generation of Baader CMOS-filters features:

CMOS-optimized Baader Filters

Increased contrast, matched for typical CMOS quantum efficiency and s/n ratio

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, image results...

Don´t be misled.

These all new CMOS-optimized filters work magnificently with all existing digital camera technologies, be it CMOS or CCD. However – an owner of CCD-camera-technology will still find our previous, extremely affordable, narrowband filter technology to be fully apt for excellent imaging. But: "the Better always is enemy to the Good".

... can be found on our detailed Blogpost:

Baader Blogpost:
Baader CMOS Optimized Filters: Unleashing the Full Potential of Astrophotography

This entry was posted on August 7, 2023 by Ian Aiken Last modified on September 27, 2023.

Baader Blogpost:
New CMOS-optimized Baader Filters

This entry was posted on May 8, 2021 by Team Baader Planetarium Last modified on February 28, 2024.

Test-report on new Baader dielectric SDSS-filters, sensational evaluation comparing to RGB-scheme

Baader Blogpost:
First Light with Baader SDSS filters by S. Ziegenbalg

This entry was posted on February 23, 2022 by Team Baader Planetarium Last modified on October 6, 2023.

Related Articles

May 8, 2021
New CMOS-optimized Baader Filters

See results Here you can jump directly to customer images taken with CMOS-optimized Baader Filters Update May 4th, 2022: After many customer feedback about our CMOS-Optimized Narrowband filters, we learned...
read article
December 4, 2023
Baader Photometric Filters: Dark nebulae appear in...

Combination of photometric and RGB filters to highlight dark nebulae Photographing dark nebulae is a fascinating challenge for astrophotographers, often posing difficulties due to the low brightness and high contrast...
read article
November 11, 2022
First Light: PlaneWave DeltaRho 350 Astrograph

I had the chance to test the DeltaRho 350 f/3 Astrograph (DR350) with the serial number 0003 – all in all this solution is absolutely remote capable! You can read...
read article
July 28, 2022
Review: visual usage of the Baader RGB-B...

March 2021: The idea behind the visual use of blue filters from RGB palettes is that they have much higher transmittances in the blue value and steeper curve slopes than...
read article
October 1, 2021
Baader L-RGB Filters – CMOS-optimized

A brief introduction to the function of CMOS/CCD (L)RGB Filters Unlike terrestrial objects, astronomical objects shine in discrete emission lines. For this reason, any RGB-filter design with gently raising and...
read article
February 23, 2022
First Light with Baader SDSS filters by...

IntroIris NebulaPleiadesLDN 1495 Attn. click above images for complex content Both, CMOS and CCD cameras designed for (amateur) astronomy typically have a spectral sensitivity from 400nm to more or less...
read article
August 7, 2023
Baader CMOS Optimized Filters: Unleashing the Full...

What do you look for in an astronomical filter? Everyone has different requirements and goals and with a myriad of filters available today; how do you choose the right filters...
read article

Specifications