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Showing results for tags 'filters'.
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Atik Horizon Mono EFW2 Baader NB and LRGB Filters Boxed with cables. Looking for £1500\€1600
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Hi, I recently spent my Xmas money on an L-Enhance filter as I have seen amazing results with this filter. I took it for a test run on the Y Cas Nebula last night (not the best night, but when is?) I managed to get around 43 mins of time. I normally shoot 1 min exposures with my 1000D modified camera but I thought I'd go for 90 seconds as the filter would reduce brightness? (any thoughts on exposure times here would be great) The results were not as great as I was hoping for - see below. O over stretched it just to see if I had captured the 'ghost'. He's there, b
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Hi! So Ive found some pictures from an arxiv report in a database which I need for my project and converted them to fits files (The picture on the left). The one that was used in the arxiv report (picture on right) is a zoomed in picture of a galaxy in that picture, where its clearly visible. However when I try zooming in on the exakt coordinates of the galaxy in the fits image, its just plain black. I want the picture "raw", that's why I saved it as fits and not their pdf picture from report. Someone suggested first stretching the image for a more detailed image but some filters had to be use -
Hello everyone, I'm looking to buy some NB filters and wanna make the best decision. 1. Does the size of the filter impacts the quality of the image? (is it a big impact?) 2. I know that lower HBW is best, but... for example: does the difference between 35nm and 7nm is worth the price? 3.Can you recommend some H-alpha, OIII, SII? Thank you in advance! Cheers, Vlad
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Hello, I'm selling these 2 filters since I'm getting a mono astro cam. The filters are barely used and in perfect condition, no scratches, no fingerprints, not even dust. They are both amazing filters, probably the best investment I've made. I've attached some images taken with these filters, using a 100$ celestron newtonian, a 250$ Canon 500D and the infamous AVX. Also attached are images of the filters showing their perfect condition. Astronomik CLS-CCD Canon Clip in Filter: https://www.astronomik.com/en/filter-gegen-lichtverschmtzung-filters-against-lightpollution-lpr/cls-ccd -
First the disclaimer. This is my first attempt to sketch Mars, or indeed any planet. Also, it started to rain and I had to abandon it with some urgency (hence no orientation marker). I used a HB pencil and a blending stump. But I think I can see a couple of features that match Ade Ashford's app. The Wratten 21 filter improved the view enormously (although you may find that hard to believe looking at the picture) helping show the surface detail and improving the seeing. I tried it the day before in my 80mm refractor, but that just made the image too dim, but on the 115mm it was very good,
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Hi everyone, I am thinking about buying a Celestron Nexstar 6se to use for astrophotography at a very beginner level. I am thinking about using a ZWO ASI224MC as it seems a good option. I have a few questions about how to setup/use it - here they are: 1.) Do you just screw it on where the eyepiece is usually at? 2.) Do you just have the cable going to a computer where you have stacking spect where that stacks the photos it takes? 3.) Does it automatically take photos of planets and DSO’s? 4.) Does it need any filters to get color on nebulae as those are they primary t
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Hello all. Thank you for taking a moment to read this & offer your suggestions/ advice. I'm sure my basic question has been asked many times: "In your opinion or experience, what are the first, most important, necessary accessories I should add in order to maximize the the use and ease of a newly acquired Celestron Nexstar 127 SLT ? I have a power supply adapter, 9mm,10mm, 25mm eyepieces, 2x Barlow and 90 degree diagonal mirror adaptor. With a modest budget and a 2 week deadline, I've researched numerous reviews and narrowed some choices to additional Plossl eyepieces, an assortment of fil -
I have been waiting for this telescope for almost five months. Since May, 19th, to be precise. The day I went to the TS Italia store and saw for the first time the SLD model, model now discontinued. I even missed the last available piece just for a few days, once I finally placed my order, June, 25th. It was to be replaced by a newer model, available at the end of the Summer. Boy, am I glad I did miss it. The wait was definitely worth it. The new and improved model is simply beautiful. I fell in love with it as soon as I saw it on the Tecnosky website a few weeks ago, when they posted the- 7 replies
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Hi, I would like to share with you an article written by me on high-resolution solar imaging in different wavelengths. Glad that the European Physics Journal (EPJ) Web of Conferences published it. You can read it at: https://www.epj-conferences.org/articles/epjconf/abs/2020/16/epjconf_seaan2020_01002/epjconf_seaan2020_01002.html You can see the different layers of the Sun in high-resolution images using different setups. Best regards. Alfred
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So...a question...let's say you want to shoot in a slightly light polluted area...but you also want to use the IR/UV cut filter...how can you use both then? You can only apply one filter at a time...so are is this a sort of 'pick your poison'? So you can't have IR/UV filtered along with Light pollution as well? For example here: https://expertphotography.com/best-astrophotography-filters/ There's a ton of great filters...but how is it possible if you need a light pollution filter because of the area you're in..but you also want to cut IR/UV ? It seems like you can only do one at a ti -
As I have replaced them with new-style versions, I have two old-style ZWO 36mm unmounted narrowband filters for sale: - H-alpha - S-II They are pre-2018, so with both sides silver instead of yellow&purple, and come in the original, but opened, packaging. Condition like new. Attached images have been made with them. Any decent price will do. Nicolàs -
Flight Case with EP's, Star Diagonals, Filters and Accessories
Vicky050373 posted a gallery image in Member's Album
From the album: Vicky's Astronomy Gear
My flight case containing most of my visual astronomy gear© Vicky050373
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Hello my first question (takes deep breath) I’m looking at buying a moon filter I have a nexstar 6se, now it’s possible I’ve had an information overload but I’m sure I read or watched a video that said SCT type scopes dim the light of the image because of the design with that said the standard density of a moon filter I’m looking at (Baader Neutral Density Moon filters) is 0.9. Because of image being dim (if that’s correct)would I be better off getting a filter with 0.6 density to avoid the image being too dim. i know the filter is there to help your eyesight etc ive had the
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I can't find any clip in Light pollution filters for Nikon cameras, specifically my trusty D90. Does anyone know where I can get my hands on one? it's been suggested that I just get a cannon already and I might in a few years but not now! I have found this Optolong UHC Ultra High Contrast Filter - Nikon D5000, D5100 Clip filter, but I don't know if it will work with a Nikon d90? any advice would be appreciated! cheers
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Probably a stupid question... Heyyy soo i am a begginer and about to buy my first telescope.A Skywatcher 200 p. I ve just though of something , Since i know filters can be stacked i ve been wondering if i could take visual RGB filters and stack them.Specifically blue green and red in order to create a visual full colour image ,like photography. I know its probably a stupid question because people all over the world would have done this by now .But i m just curious. -Kronos
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Hi everyone ? I'm looking to take my first steps in buying more equipment than what came with my Skywatcher 200P, which was 25mm and 10mm lenses. I enjoy looking at planets, nebulae and managed to get my first look at Andromeda the other night which was amazing. Are there any filters or lenses (or anything else) less than £100 that I should consider buying to improve my viewing? Looking at the range of things available is a bit overwhelming. Thanks! -
Looking at getting a light pollution filter, for my camera as I'm in a bortle 5 area and not currently using any filters. I've been looking around and the clip in filters are way out of budget, for now, so I've been looking at the Hoya filters and the red intensity filters. Then I saw these from Globe (Link Below), and thought maybe it's too good to be true? All those filters for the price of one Hoya? Has anyone used these before what do you think? https://mygobe.com/uk/52mm-collection-filter-kit-1peak.html?fbclid=IwAR3Uqu_TDPx-uxun3SGnDl8CqFQ-8kGgooW62Ux3gSNJ9PitQJj1RQn3_
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I'm selling my 1.25" baader H-alpha 7nm filter. I purchased it on amazon several months ago, but have never actually used it, as my CCD didn't work. (Its just been put in a filter wheel but never used!) As such it is in perfect condition. Price £75 including delivery to a UK address. Payment via Paypal (buyer pays fees), Paypal friends, or bank transfer Any questions, please ask.
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Hi I'm selling my Baader 1.25" CCD RGB filters. They are used, but in excellent condition with no scratches or anything of the sort. Price £115 including delivery to a UK address. Payment via Paypal (buyer pays fees), Paypal friends, or bank transfer Any questions, please ask.
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Hi, when I get my 130p I would like to do some solar viewing after seeing many posts on the forum looks quite interesting. I would like to know what’s the best type of filter there is to use. Also do I need any filters for the eyepiece it self? And do I need to buy anything to keep my scope and myself safe? For example a cover to put on over the scope to keep it from heating ? I was looking at this https://www.firstlightoptics.com/solar-filters/astrozap-baader-solar-filter.html sky and telescope done a article and mentioned the Baader to be the best one is this the one they are talking a -
Just wanted a bit of advice regarding mono imaging. I have a few filters that came with my second hand scope. They are all revelation filters I know these are not top quality but has anyone used these for imaging? I was looking at a light pollution filter found this on eBay https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F370861000046 im sure it’s not perfect but has anyone tried them or similar? at some point in the future I do plan to buy good filters and make a filter wheel but before spending more I want to make the most of what I have unle
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hello looking for sun-filer or moon-filter for polarex or unitron -
Hi I will buying a Celestron 11" HD cassegrain and to save I need to buy most of the needed equipments since they are 2x -2.5x price in Asia and i would not want to end up with things I dont need. For eyepieces will a combination of Ethos 13, 17, 21, Nagler 31, Panoptic 41 or William swan 40 and a TPO 50mm. Any suggestions please? Im not really well versed yet with filters for planets and deep sky and other than sky viewing I will be using a Nikon D5500 for astrophotography and maybe buy a simple webcam. Any suggestions? Im also considering getting a JMI dual speed motored focuser....Any sugg -
Reading the forums, it seems certain filter types are best suited to certain DSOs, in particular different nebulae. If OIII filters are good for most nebulae, which nebulae benefit more from other types? If UHC filters help with contrast for galaxies & fainter DSOs, are there certain suffixed types better than others. Hydrogen Alpha, Beta & various other filters, get mentioned. What are those for?
