Explore Scientific 2" S-Ii Nebula Filter 12Nm

Explore Scientific 2" S-ii Nebula Filter 12nm

Product Code: eq115208
Availability: In Stock

$629.97 $913.46

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Description
Reviews (19)

The Explore Scientific 2" S-II Nebula Filter 12nmfilter uses the property of the so-called emission mist. These objects glow in certain colors, the so-called emission lines. The emission lines are linked to certain chemical elements, in this case ionized sulfur. This filter blocks almost all artificial light to improve viewing of nebulae, passing only the emission lines of the the ionized sulfur at 672nm. The effect is amazing: Suddenly fog becomes visible in the photos in places that appear completely empty without a filter. The Explore Scientific mist filters are supplied with an individual test report, so you can be sure that you are receiving high-quality filters.

Parameters
Item Type	1x Narrowband S-II Filter
Filter Eyepiece Size	2"

High quality Explore Scientific S-II filter
Absorbs all other emission lines
Absorbs almost all artificial light
Passband bandwidth: 6.5nm
For observing faint planetary nebulae, emission nebulae and supernova remnants
More contrast and details for all urban observers and astrophotographers
An individual test report of this premium filter is included

Related Questions and Answers

Q: 1. The image from the telescope is upside down and backwards. How do I fix this?

A: You would just need to add a 90 Degree Star Diagonal. The Celestron 90° Star Diagonal (1.25") will work. Link: https://bhpho.to/3t4ZEMK

Q: 2. if i have a 127mm reflector , which one shld i go for

A: So I would really need to know exactly which Telescope you have. I also would need to know what you are mounting it to.

Q: 3. HOW THIS EYEPIECE'S QUALITY COMPAIR TO THE 24 MM PANOPTIC EYEPIECE ?

A: The Panoptic is slightly better... it's nowhere near 2x better, which is usually the price difference. I tested out quite a few televue vs ES eyepieces in 68, 82, and 100 degrees and have always found the ES to be the best bang for the buck by a pretty noticeable margin.

Q: 4. Any front filter threads? If yes, what size?

A: There is no front filter threads in the Explore Scientific BT-70 SF Giant Binoculars.. In the instructions, Explore Scientific explains, the filters will be mounted in the 1.25" eyepiece threads.

Q: 5. Will this work with my Lunt 152mm ED APO f/8 which has a 3 inch Feather Touch focuser?

A: Yes, the ES 0.7x Reducer should work reasonably well with a 3 inch focuser. There are three options for attaching the reducer to a focuser, a 3 inch adapter and two smaller adapters. The upper left cylinder in the product photo is for a 3 inch focuser. It has a 76mm outside diameter and 74mm ID with female threads. The 3 inch adapter screws on to the bottom (scope side) of the reducer. It appears to be designed to either be inserted into the focuser tube or screwed on, depending on your setup. I use it with a 127mm f/7.5 APO and it covers a full frame (35mm) sensor with sharp stars, but with some vignetting in the corners. Two issues I have with the reducer are 1) the T adpater is standard 42mm, as opposed to 48mm, and so produces more vignetting than is necessary given its 3 inch optics. 2) Given the 55mm T adapter shoulder to sensor plane recommendation, there are no 48mm threads or room for a screw in filter. I just ordered and adapter that will allow for screw in filters on the focuser end of the reducer.Hope this helps.

Q: 6. Hi, I would like to know The dimensions of the tube, the Ota, how long is the tube, please?

A: The OTA is 24.25 inches in length. 4.38 inches in diameter and weighs approximately 5.60 lbs.

Q: 7. Can I change the focusor's position to the opposite side?

A: Unfortunately no, the focuser location cannot be changed.

Q: 8. Will this fit the Sky Watcher 127mm MakCas and how long will it take to get it in?

A: The telescopes listed as compatible for the Explore Scientific Cradle Assembly for White 127mm Telescope are": The Explore Scientific AR127 Explore Scientific ED127 Explore Scientific FCD100 ED127 Explore Scientific FirstLight And the computer says, the Cradle Ring will be in 7 to 14 days from the day it is ordered.

Q: 9. Does the primary mirror have a center spot?

A: Unfortunately no, it does not have a center dot for collimation.

Q: 10. Where is this mount made?

A: The COUNTRY OF ORIGIN for the Explore Scientific Twilight I Alt-Azimuth Mount with Tripod BH #EXMAZ0100 • MFR #MAZ01-00 is China.

Tom	27/08/2024
[2"] It comes in a really nice box. 5

Karl	24/08/2024
[2"] This is my first 2" EP and my first 82 degree FOV EP. The view of the double cluster (I could see both in the FOV with my Meade LS-8) was simply spectacular. I was a little anxious about spending close to $300 for an EP. However it is definitely worth the money. 5

Dane	24/08/2024
[2"] This is pretty much my favorite eyepiece. Field of view and clarity are amazing; mix that with the 17mm magnification and it's my goto eyepiece for almost anything. If it were forced upon me I would happily use this as my only eyepiece for the rest of my life. With that said, I must say that the rubber eyecup fell off within a couple days of use and I will need to figure out the repair myself (not a big enough issue to send back). Also, the plastic cap doesn't fit over the top of the eyepiece for storage? What is that about? It's from a different eyepiece model? I wouldn't expect these issues with an otherwise very high quality piece. Even with these issues I am giving it 5 stars because they do not take away from the amazing viewing experience and overall quality. 5

Al	17/08/2024
[2"] I have no regrets. This is a really great filter. 5

Dob61	12/08/2024
[2"] Just tried this eyepiece out in my 20 inch Dobsonian telescope. We were in the very dark skies in northern Nevada. Views were excellent. This eyepiece has made my scope an entirely new experience. 5

Richard	09/08/2024
[2"] I purchased this coma corrector after reading online reviewer's recommendations. I'm using it on a 8" f/3.9 imaging Newtonian and after getting the spacing correct I have pinpoint stars across the field. I would recommend this corrector for anyone imaging with a fast scope, you will not be disappointed. 5

Greg	13/07/2024
[2"] Well made and excellent views. 5

David	13/07/2024
[2"] Ordered from USA to Brisbane on a Monday and received Friday via DHL in time for dark skies on Saturday. WOW Very light weight but solid. Performed well with Explore Scientific + Tele Vue eye pieces on my Celestron 11 and would highly recommend. 5

Alex	03/07/2024
[2"] Product name is misleading. Should be Shroud for Explore Scientific Dobsonian. A more detailed description (overview section) is easy to miss on the mobile app. Probably an excellent product for the intended use. 5