Baader UHC-S Nebula Filter - 1.25" # FUHC-1 2458275

4.0 Baader nebulae filter

I was curious if this loght filter would be effective on my little mac-cas 1300mm. I am very pleased with it's effectiveness. I will be looking for another in the near future. Thanks to Baader and Agena Astro for making it available.

This review was provided courtesy of AgenaAstro.com

4.0 LIttle too much blue

Really like this filter, super high quality and really good mix of spectra, but I'm getting a lot of blue instead of black in the background of my pix, and that's normal for a nebula filter, but would like to see more black there.

This review was provided courtesy of AgenaAstro.com

4.0 An Excellent Broadband Filter

This filter is very effective with smaller apertures or exit pupils. It acts more like a broadband filter than the term UHC may imply.

This review was provided courtesy of AgenaAstro.com

4.0 You can see the horsehead nebula

Quality Lenses

This filters out the light you don't want, letting through the light you do want. You can see the horse head nebula with this filter. I had some ghosting issues using it for astrophotography, but it might have been internal reflections within the camera.

This review was provided courtesy of AgenaAstro.com

5.0 Great filter for urban sky's

Great Contrast,Brings Out Great Detail,Compact,Cuts light pollution,Easy to Use,Lightweight

I 100% recommend this filter. I think that it's better than filter from fa. Astronomik, and it's cheaper...

This review was provided courtesy of AgenaAstro.com

5.0 My Second UHC-S

Accurate,Quality Lenses

I've been using a 2" UHC-S for several years and needed a 1.25" for a couple of my setups. It is less aggressive than most narrowband filters and works well with smaller exit pupils (higher f-ratio or magnification) or any situation where you'd prefer to minimize image dimming. Like most Baader products, it is well made and the coatings are excellent.

This review was provided courtesy of AgenaAstro.com

4.0 Quality product works well

Quality Lenses,Strong Construction,Accurate,Compact,Easy to Use

Great filter for urban sky's just the thing if you have a street light across the road like I do.

This review was provided courtesy of AgenaAstro.com

5.0 Great visual filter

Brings Out Great Detail,Quality Lenses,Easy to Use,Great Contrast,Quality Great For Price,Coatings Look Great

I use this with my Explorer Scientific 100 degree 2" EPs and its like being within some of the nebula that I am observing. Adds lots of contrast and brings out some of the finer portions for those who visually observe.

This review was provided courtesy of AgenaAstro.com

5.0 Great product

Quality Lenses

As always great service from Agena, great communication and international shipping prices , and great product.

This review was provided courtesy of AgenaAstro.com

4.0 I can see the stars

Compact,Easy to Use,Lightweight,Accurate,Strong Construction,Quality Lenses

Baader gave me great oportunity to see the stars & DSO's. Especially nebulas. With this item, sharpness of the edges of the nebulas are more clear even under heavy light polluted areas.

This review was provided courtesy of AgenaAstro.com

4.0 Filter delivers contrasty views

Lightweight,Easy to Use,Strong Construction,Quality Lenses

The Baader UHC-S filter gives nice views of a variety of nebulae. The contrast of nebulae like the lagoon and dumbbell are enhanced with this filter. Construction is good and comes in a neat sliding box for storage. Only downside to this filter is the double view of some stars - the blue and red for the two ends of the spectrum. That said, it's still a great performer.

This review was provided courtesy of AgenaAstro.com

5.0 Higher Contrast for Astrophotography

Improved contrast,Cuts light pollution

Everything is dimmer

I use this filter for photographing nebulae. It works great for cutting down sky background and also for suppressing bright stars a bit relative to the nebulosity. I have not compared it with other brands, nor have I yet used it much visually (I'm hoping it will make dim nebulae easier to find, but the jury is still out on that).

This review was provided courtesy of AgenaAstro.com

5.0 Very good for the money

Strong Construction,Quality Lenses

None

Baader filters seem to be an excellent alternative to Lumicon. I have both and have not noticed any difference between them.

This review was provided courtesy of AgenaAstro.com

5.0 Really nice filter

Quality Lenses,Effective,Strong Construction

This filter had a profound effect on the objects I viewed. In the great Orion Nebula, the cloud was more detailed and extended far beyond what I could see without the filter, and the trapezium was very clean. I tried it just for kicks on the R-Lepus (Hinds Crimson star)- a nice carbon star without the filter, was now a crayola red drop of blood in the sky. Very Cool!!! Over all, the contrast is better, and the sodium light of the nearby street lights erased, with most of the field stars left in tact. It is much more effective than a regular skyglow filter or light pollution filter.

This review was provided courtesy of AgenaAstro.com

3.0 Good filter for nebulae fans

Quality Lenses

None

This filter enhances the view of nebulae such as M42. It's quality is very good and the price is affordable. A very good purchase if you enjoy observing nebulae, and also, to help reducing light pollution if you live near a city.

This review was provided courtesy of AgenaAstro.com

5.0 I would buy this product again and again

Strong Construction,Quality Lenses

Excellent product highly recommended

This review was provided courtesy of AgenaAstro.com

5.0 Best money can buy........

Accurate

Great item. I use it every day and had no problem at all.
Thank you...

This review was provided courtesy of AgenaAstro.com

4.0 A great performer for small apertures

Great spectral response,Quality Lenses,Accurate,Strong Construction

Best for small apertures

There is a large number of choices for light pollution filters, and a corresponding large variation in price. For this reason is did a lot of research to determine, for myself, which was the best filter to buy. Based on the data I collected, the Astronomik UHC is the best performing nebular filter, having excellent transmission in the bands of interest, and very sharp cut-off to nil transmission in the light pollution bands. The Televue and Lumicon are second for light pollution rejection but they have little or no transmission in the Halpha and SII bands. In third place for light pollution rejection is the Baader UHC-S, which has a broader transmission band around the desired bands allowing a bit more light pollution in. It does however have transmission levels in the desired nebula emission bands almost as good as the Astronomik. The broader pass band of this filter, and the inclusion of H-alpha and SII make it a very good performer for smaller aperture telescopes (<4"). The more expensive filters considered in my analysis may in fact have too narrow a band pass to be useful on smaller scopes, and Baader does boast this on their website.

So for small aperture telescopes I'd recommend the Baader over all others (note that the Celestron UHC is made by Baader). If you need a UHC filter for a larger scope (>4"), but are on a budget, then the Baader again is your best value.

This review was provided courtesy of AgenaAstro.com

5.0 Baader Planetarium UHC-S filter

- good performance
- inexpensive
- good quality
- easy to find
- well suited for <4" aperture

- not the best light pollution rejection available

Before investing in a filter to combat light pollution, I did a lot of research to try and decide which one was the best performer. I live in the middle of a fairly large city (~1million), so performance of the filter is important. Second of course is cost. I compared all the filters I found that were readily available on the market:

- Astronomik (UHC, OIII)
- Baader Planetarium (Moon & Skyglow, UHC-S, OIII)
- Lumicon (Deepsky, UHC, OIII)
- Meade (Broadband, Narrowband, OIII)
- Orion (Skyglow, Ultrablock, OIII)
- Televue (Nebustar, OIII)
- IDAP (LPS)

Note that based on the information I could find, the Celestron brand light pollution filters are made by Baader and so their performance would seem to be the same. As the point of comparison I looked at the spectral response data that was provided for each filter by the manufacturers or by third parties who have actually measured the response of the filters. I digitized and replotted all the data in the same scale on the same graph and compared. The objective of the filter is to reject the largest amount of light pollution wavelengths possible, and have the highest transmission possible in the bands of interest. Light pollution, including skyglow (a natural phenomenon), occupies a band from 400-440nm and 540-640nm. The desirable observation bands for nebulae are: H-beta 486.1, OIII 495.9 & 500.7, H-alpha 656.3, and SII 672.6.

Based on the data I collected, the Astronomik UHC is the best performing nebular filter, having excellent transmission in the bands of interest, and very sharp cut-off to nil transmission in the light pollution bands. The Televue and Lumicon are second for light pollution rejection as they have little or no transmission in the Halpha and SII bands. In third place for light pollution rejection is the Baader UHC-S, which has a broader transmission band around the desired bands allowing a bit more light pollution in. It does however have transmission levels in the desired nebula emission bands almost as good as the Astronomik. The broader pass band of this filter, and the inclusion of H-alpha and SII make it a very good performer for smaller aperture telescopes (<4"). The more expensive filters considered in my analysis may in fact have too narrow a band pass to be useful on smaller scopes, and Baader does boast this on their website.

I have a 3" refractor as a wide-field guidescope, so based on my analysis I searched for and purchased the Baader Planetarium UHC-S filter. It was easy to find online and was very reasonably priced. The filter is excellent quality, and performs very well on my refractor. I haven't had a chance yet to compare it back-to-back with my Astronomik UHC, but I'm sure it will fare well. The filter is made in Germany, and it comes in a simple foam lined clear plastic case.

5.0 Works like a charm!

Strong Construction,Compact,Accurate

When it comes to filters like these I think it gets a little more personal in what you want out of it, what you're expecting, and what will make you happy. I had my own criteria that I wanted out of a nebula type filter and this one had what I was looking for.

I did a lot of research on this particular filter. I didn't find a lot of reviews but I did find a lot of general information, some forum discussions, etc.

Now what I wanted was a good filter, but not one that blocked too much light. So that would be somewhere between the broadband and the narrowband range. I wanted to be able to see the star field to a degree, but also wanted enough filtration to get some improved views of the nebulas and such. The Baader 2" UHC-S fit my needs perfectly.

Tonight I spent sometime studying M17 and M16 for testing purposes. I did some swapping both with and without this filter, and found the views to indeed be improved. With the filter in place the nebulas grew larger in appearance and were more defined against the background. And just as I was hoping to see, the star field was still apparent. Very cool!

I used this filter with my 8" f5.9 dob. I used both a 2" 26mm and 32mm lens with this filter. Worked very well with both.

The filter itself is very well made, great quality. The threading is top notch and I had no problems attaching this filter wherever I wanted to try it.

I plan to pick up the Baader Oxygen filter next. The brand has proven itself to me and the price is just right.

This filter works well imo. Recommended.

This review was provided courtesy of AgenaAstro.com

5.0 Works like a charm!

Works great, affordable

None found

When it comes to filters like these I think it gets a little more personal in what you want out of it, what you're expecting, and what will make you happy. I had my own criteria that I wanted out of a nebula type filter and this one had what I was looking for.

I did a lot of research on this particular filter. I didn't find a lot of reviews but I did find a lot of general information, some forum discussions, etc.

Now what I wanted was a good filter, but not one that blocked too much light. So that would be somewhere between the broadband and the narrowband range. I wanted to be able to see the star field to a degree, but also wanted enough filtration to get some improved views of the nebulas and such. The Baader 2" UHC-S fit my needs perfectly.

Tonight I spent sometime studying M17 and M16 for testing purposes. I did some swapping both with and without this filter, and found the views to indeed be improved. With the filter in place the nebulas grew larger in appearance and were more defined against the background. And just as I was hoping to see, the star field was still apparent. Very cool!

I used this filter with my 8" f5.9 dob. I used both a 2" 26mm and 32mm lens with this filter. Worked very well with both.

The filter itself is very well made, great quality. The threading is top notch and I had no problems attaching this filter wherever I wanted to try it.

I plan to pick up the Baader Oxygen filter next. The brand has proven itself to me and the price is just right.

The filter works well imo. Recommended.