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Plus drops, spills and cracked screens during normal use for portable devices. Astronomik offers narrower 6nm versions in all formats, but at a considerable premium in price (445 for a 6nm vs 285 for the 12nm model I tested). However, doing so does not turn the DSLR or mirrorless camera into a monochrome model! After I have accumulated all my data frames, its time to process them. Clear skies ! No. The idea with these is to simply slide them behind the lens, and one size fits all. Use a planetarium mobile app or a physical star map to locate the rough position of your target. By contrast, many unwanted sources of light (both natural and man-made) peak in the yellow, green and blue bands of the spectrum. You can also use a Burn/Dodge tool to selectively add or subtract H data from your final image (which is also possible using layer masks, but the process is a bit more complicated). I hope this helps you get the most out of your fantastic Canon Ra camera! Do you have a link to the purchase page? Perhaps the MaxFR version would yield better light transmission and shorter exposures with fast lenses, but Im happy with the cheaper standard 12nm version. One reason I use a 12-nm H filter over a 6-nm H filter is because it allows me to more easily find a star for focusing, as the 6-nm filter blocks more light. Combining H-alpha exposures to your existing RGB data can greatly increase the amount of detail and contrast in your nebula images, and even add dramatic details to certain galaxies. The EF-S lens mount wont work with a clip-in filter! After opening your stacked TIF file in Adobe Photoshop, open up the Channels Tab (If you do not see this tab, click on Window > Channels from the main menu), and have a look at the data. The chart shows that the Astronomik filter allows 97% transmission of the h-alpha wavelength. Processing was carried out in Adobe Camera Raw to help bring out the comets faint ion tail. Multi-narrowband filters for one-shot color cameras are rapidly becoming more popular for their light-pollution-defeating benefits and the speed of using a one-shot color camera ALP-T Dual Band SII and Hb Filter, antlia, H-beta, Multi-narrowband filters, SII filter. If your camera is used for astrophotography exclusively, why not modify your camera yourself? The warm temperatures at night make their presence known in my DSLR images in the form of noise. . Please try again later. But such a combination is practical only under dark skies. Adding this filter changes the focus, so I refocus on a star and increase the ISO to 3200. You should see that almost all of the pixel information resides in the red channel. This emission nebula could have been captured in greater detail using a modified camera, but the skyglow and wavelength suppression capabilities of the filter are still present. As a result, red nebulae that would appear green in normal cameras instead take on a pinkish hue. Thats exactly what I did to my Canon EOS 450D (Rebel Xsi) camera in 2014. With the Astronomik 12nm filter, I generally increased exposures by at least a factor of four over an unfiltered image (by doubling exposure time and doubling the ISO), if not more. My Astronomik 12nm Ha filter cuts through my red-zone (Bortle Class 8) skies to reveal beautiful structures of hydrogen gas in the emission nebulae I photograph. A narrowband filter lets the h-alpha light of emission nebulae pass through to the camera sensor, and blocks almost all of the other wavelengths of light in the visible spectrum. Any filter placed between the optics and camera sensor will shift the focus point. The Milky Way stretches across the sky above the authors home in California in this image taken with the Canon EOS Ra. The camera has to be aimed at a bright star to focus. Most suffer from variable plossl, svbony, SVBONY Zoom Eyepiece, Zoom eyepiece. I also tried to shoot as many sub-frames as the night would allow. Our #: OFIL-OL-HA7-EOSC. Emission nebulae are clouds of glowing H II gas, and they emit light at a very specific wavelength. In this case, the target is the Orion Nebula as seen through a 200mm lens. Ive found that by shooting RGB images with a light pollution filter such as the Skytech CLS-CCD and adding images in ha (using the Astronomik 12nm Ha Filter) you can really get some amazing results from a red/white zone. The light from an emission nebula is created when the atoms in the gas are ionized by the formation of hot young stars. I seen many UV-IR cut-off graphs for other Canon cameras, but nothing for the 6D. Full content visible, double tap to read brief content. Please try again later. Previous Canon cameras with mirror-equipped viewfinders relied on Electro-Focus (EF) lenses, but the company also makes a solid adapter that allows you to equip these same EF lenses on their new mirrorless cameras. Images captured using a narrowband Ha filter have some pleasing characteristics. Does it need to be cleaned up ? Thanks to your earlier reviews for opening my eyes to this incredible product. Includes initial monthly payment and selected options. Traditional light pollution filters designed to help you photograph deep sky objects in broadband (true-color) are useful, but a hydrogen-alpha filter makes the single greatest impact on your astrophotography overall. Im imaging with an astro modded 450D, star adventurer and L series lens (70-300L f4-5.6, 24-70L f4 and an ef 50mm f1.8). Im glad to hear that you are getting a lot of use out of this filter when the moon is bright. Unlike with some filters (see my test of several dual-band filters), I did not see any unwanted halos around bright stars, though with a deep red line filter I would not expect halos in any case. The ability to image during the full moon and surrounding week results in much more time under the stars. I have not yet overlayed the Ha images on top of the Hbeta. As Hap Griffin's website indicates the Canon 6D comes from the factory with 80% of the hydrogen alpha line Blocked!! Once each file looks as good as I can make it, I save it as a 16-bit TIFF. Astronomik H-Alpha Clip-In Filter for DSLRs Reviewed, Astronomik also offers a more expensive MaxFR, Sky-Watcher CQ-350 Pro Review: A (Semi-) Portable Titan, Price and Quality in a High-Power Zoom: SVBONY 3mm-8mm Zoom Review, A New Bandpass Combination for Imaging: Antlia ALP-T Dual Band SII / H-beta Filter Review. I saw the you are using a SS of 3 or more minutes. Following the same process as before, I add the master H frame as a layer on top of the flattened RGB-flare image. Even with a fast telescope, I found a Bahtinov mask was just useable on the skys brightest stars. One of the most striking features of the Canon Ra is its vari-angle LCD screen, which makes it a easy to view your target no matter where you are pointing the camera. To track my images, I use a Takahashi EM 200 mount, but any small mount will work as long as it is polar aligned and has a hand paddle for making right ascension and declination corrections. There are 0 customer reviews and 1 customer rating. (1) Obtain a set of RGB frames, taking longer exposures at lower ISOs. But utilizing the slotted adapter allows you to change filters without fussing with the camera itself. I carefully removed the IR cut filter on my Canon Rebel 450D by watching this video from Gary Honis. In some wide-angle lenses Ive tested with clip-ins, the aberrations at the corners blow up, though to an extent that varies from lens to lens. I have been using the Ha 12nm clip filter with my Canon T6 on a Sky Watcher Adventurer since June. That would be even more true under light polluted skies when shooting toward urban light domes. Chroma Filters H-Alpha 1,25", 8nm. It is possible to get good images even under conditions that would render unfiltered color images a fogged-out mess. Also wanted to mention I really enjoy your videos. Thanks for that too! The EF-S series of Canon lenses were designed to be used solely with Canon APS-C (crop) sensor DSLRs, and have a smaller image circle. This includes blocking unwanted wavelengths in IR (infrared). Most claims approved within minutes. Its not the end of the world, but it does take longer to get up and running that it would using a broadband filter that allows more light to reach the sensor. Contact us if you cannot locate your plan confirmation and Terms & Conditions via email at AmazonFeedback@Asurion.com. Ideally, youll use a bright star that is nearby, lock your focuser and then slew to your target. The best way to test, Continue Reading 10 Light Pollution Filters for Astrophotography in the CityContinue, The hot nights of early summer astrophotography start late and end early. Now for the CCD trick: Bring the H master into Photoshop as a layer on top of the RGB-flare image. Since DSLR cameras collect light through a Bayer filter, the signal is divided up into RGB channels that would normally build a full-color image. One reason I use a 12-nm H filter over a 6-nm H filter is because it allows me to more easily find a star for focusing, as the 6-nm filter blocks more light. Enhancements you chose aren't available for this seller. Now that I have done that, do i still need to add an Ha CLIP filter to my modified 80d and if i do does it improve my captured images or should I not add an Ha clip filter with my Baader glass ? Left top image is a standard image from an unmodified DSLR (Nikon D5500). To add the following enhancements to your purchase, choose a different seller. Here is a look at Barnards Loop captured using the clip-in Ha filter in my Canon EOS Rebel T3i. Ive been shooting the Sun in just white light and wanting more detail. TERMS & DETAILS: More information about this protection plan is available within the Product guides and documents section. Many nebulae in the night sky (and even some galaxies) emit a strong signal of light in this wavelength and a hydrogen-alpha filter helps to isolate and record this signal with your DSLR camera. Here's an example of using an H-alpha filter with an unmodified DSLR to create options in a colour image of the Bubble Nebula . Please make sure that you are posting in the form of a question. This allows DSS to use up to 4Gb of your Ram. Not having a spectrophotometer, I could not check this claim. So far the images I have been getting are washed out white glowish messes, with a DSO somewhere in the frame. The data observed in the red channel is the most important, as this is where all of the useful image data lies. This is known as a full spectrum naked sensor mod, and it made a huge impact on my astrophotography images. The same benefits of an H-alpha filter can be realized with a stock DSLR. Its time for another Photoshop tutorial, along with some night sky DSLR photography tips. For example, using an H filter pushes the focus slightly past infinity, so you need to use a lens that can focus past infinity as well. If I add the Ha clip in filter and I want to use a flattener/reducer how do I calculate what distance is needed between the sensor and the reducer? Anyway, if youre anything like me, you learn by doing. By using a Ha filter in your DSLR, it is possible to increase the contrast between objects in the h-alpha emission line and the skyglow background. The use of EOS-C clip filters is not possible when using Canon EF-S lenses. and was able to perform a 2x Drizzle. After processing the raw images, I upload all the individual image files into RegiStar, which is software that allows you to easily combine and align multiple images into a single composite. The Canon EOS Ra follows in the footsteps of the companys 20Da and 60Da: All of these cameras have a special ultraviolet-infrared (UV-IR) rejection filter that allows the transmission of Hydrogen-alpha (H) light. i just recently started taking my night sky photography more seriously , Buy DayStar Filters Camera Quark H-Alpha Solar Filter for Canon (Prominence) featuring 656nm H-Alpha Filter with 12mm Blocking, Tuned for Prominence Viewing, Use Canon Lenses for Solar Imaging, 0.5 Wing Shift Tuning, 2-Element Telecentric 4.2x Barlow Lens, Optical Coatings Tuned to H-Alpha Band, No OTA Aperture Limitations, 5 VDC, 1.5A Micro-USB Port, 1/4"-20 Tripod and Vixen Dovetail . Sold by Prime-Pros and ships from Amazon Fulfillment. I plan to do the full spectrum mod soon however, but thought that I needed the CLS CCD to block some of the IR necessary to focus with a refractor. This series summarizes the authors process for creating vivid shots of celestial sights in this case, Orion. https://www.techpowerup.com/forums/threads/large-address-aware.112556/, You can capture images during any moon phase, You can add dynamic details to existing color images, Fast f-ratios (F/2.8) can be used without star bloat, You can use an h-alpha filter on a stock DSLR (signal is much weaker), Single bandpass filters are usually more affordable than a multi-bandpass version. Like magic, featureless stars in the RGB frame now have both color and proportional size. So will this filter help with my imaging in the heart of Edmonton? As with any tweaks to software/OS do this with caution. 2 extra spacer rings to customize to your exact Nikon lens' focus needs. Many Canon lenses do this, but if you are using a lens. Astronomik also sells clip-in filters for Nikon, Pentax and Sony cameras, as well as standard 1.25- and 2-inch sizes for screwing into camera adapters, and also unmounted versions for insertion into filter wheels. The clip-in versions offered by Astronomik are a perfect fit for several Canon and Sony cameras. Long ago, I discovered you get better results in RGB by taking longer exposures at lower ISOs rather than shorter exposures at higher ISOs. My highly portable astrophotography equipment allows me to move the, Continue Reading Short Nights and Hot SensorsContinue, Your email address will not be published. Marcus, Hi Trevor, what a great tutorial on Filters. They mount between your Canon- or Nikon-mount lens and your camera. ..if you were to use PixInsight.Drizzle Integration is built in , Thank-You for the write up, just bought the Baader Ha & S-II 2 filters to use with my Nikon D5300, as I only use this camera now for AP I will take out the hot-mirror myself again and go naked sensor. This is something that comes in handy during processing, but more about that later. The sub-exposures will look extremely red as shown in the example above, and so will the intermediate file that DeepSkyStacker spits out. In seemingly magical fashion, it reveals the faint nebulae in the night sky that are impossible to see through an eyepiece with the naked eye. The Sky This Week from June 2 to 9: See a Full Strawberry Moon, Astronomers detected two major targets with a single telescope a mysterious signal and its sourcegalaxy, The Sky This Week from May 26 to June 2: Mars buzzes the Beehive, Bright, young supernova now visible in M101, What are dark nebulae? Q: I waited far too long before making this decision. H-alpha is a specific deep-red visible spectral line with a wavelength of 656nm. i have a Canon Eos 760D and a Canon Eos 6D. Astronomik recommends these more selective filters only for use with advanced cooled CMOS cameras under light polluted skies. Now, any constant background noise becomes random, and if you average all that noise together, it largely cancels itself out. Shipping cost, delivery date, and order total (including tax) shown at checkout. This allows me to clearly capture the stars colors. You can use the same signal isolating techniques to enhance your existing RGB data. If your filter was damaged in shipping, we will gladly repair the unit under the 5 year wa. (Comparable to the internal filter of the Canon EOS 60Da) the tutorials are amazing. I always thought that for Ha you need a mono camera Im not yet ready for that given the fact that AP is challenging as for taking photos and processing them. Im a newbie to astrophotography and I have a Canon R with the Samyang 135 lens (among others) and was beginning to think I had wasted my $500 on the Astronomik Ha filter. https://www.techpowerup.com/forums/threads/large-address-aware.112556/ I again change the blend mode to Lighten and watch as the RGB-flare image acquires all that beautifully red H light. This opens up the doors to imaging during the full moon, and from a city backyard. I have a Canon EOS 90d. Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.Learn more how customers reviews work on Amazon. Many Canon lenses do this, but if you are using a lens that stops right at infinity, it will not work with a H filter inserted behind it as described in this article. This will make it black and white, but it will also help enhance the H details. This is needed because the internal UV/IR cut filter blocks the both the IR light for IR photography and the H-alpha light for shooting nebula (See my astrophotography series for more details). Matt, DSLR Photography Tips: Shooting the Milky Way on a Tripod, Light Pollution Filters for Astrophotography, 10 Light Pollution Filters for Astrophotography in the City. To be usable on its own, it has to be converted into greyscale monochrome. Specifically, by both sharpening the shot and increasing its contrast, you can make the H light really stand out against a dark background. Like magic, featureless stars in the RGB frame now have both color and proportional size. If you are using a camera lens, you may want to use tape to secure the focus adjustment ring to avoid knocking it out of position in the next step. If you want to drizzle with DSS and you have a x64 processor and 8Gb+ of Ram..you need to use the large address aware memory tool. I just had my EOS80d modified by removing stock filter. This astrophotography filter features even narrower bandpasses than last years L-eNhance, making it perfect for nebula photography from the city. Additionally if I capture regular RGB subs to combine with the Ha channel do these need to be the same exposure length or does it not matter once each of the two channels (RGB and Ha) are stacked? I tested the model that clips into the bodies of Canon R mirrorless cameras. I capture everything in camera RAW format to preserve as much detail as possible. I used the filter primarily to take monochrome images for their own sake. It worked very well, but I found the best results still required very transparent nights with no haze or humidity, and with the Moon well away from the field of interest. I do this for both the RGB frames and the H frames. Reviews Astrophotography gear Accessories. IVe been looking for ages. A $99 service fee will apply to claims on products with a purchase price of $500 and up. If we cant repair it, well send an Amazon e-gift card or replace the device. Limited quantity available!! Amazon.com : SVBONY Telescope Filter H-Alpha 7nm for Canon EOS-C Clip Filter Narrowband Astronomical Photographic CCD Filter for Deep Sky : Electronics Electronics Camera & Photo Accessories Telescope & Microscope Accessories Telescope Accessories Filters $17999 FREE delivery May 17 - 23. I used my lower-cost standard filter with some lenses at f/2 and found no issues. This field is for validation purposes and should be left unchanged. After I have accumulated all my data frames, its time to process them. Optics ZS80II ED, Orion OBS. The Visible + H-Alpha filter has a sharp cutoff at 680nm which allows imaging in the most popular narrow band ranges including: Hydrogen Alpha (H-Alpha), Sulpher II (S-II) Oxygen III (O-III), Nitrogen I (N-I), and Hydrogen Beta (H-B). 70 & Astroview 90, Orion Explorer 90, SolarLite Solar Filter for Telescope, fits Celestron and Meade 8" Schmidt Cassegrain, K&F Concept 49mm MC UV Filter, Super Slim/High Transmittance/Anti-Reflective, for Camera Lens, K&F Concept 77mm MC UV Protection Filter with 28 Multi-Layer Coatings HD/Hydrophobic/Scratch Resistant Ultra-Slim UV Filter for 77mm Camera Lens (Nano-X Series), JONGSUN 105mm UV Filter, S-Pro HD Nano MRC Camera Ultraviolet Protection Filter, Multicoated, B270, Ultra-Slim, Lens Cloth Kit, SVBONY Telescope Filter 1.25 inches UHC Filter Astrophotography to Improve The Image Contrast Reduces Light Pollution (1.25 inch). As an important note, when you use a glass filter of any kind behind the lens of a camera or telescope, it is going to change the focus! I am very interested in narrow band filters, but Im having trouble finding available options my Sony Alpha 6000 camera. They even took compatibility one step further, making available another adapter that has a built-in filter slot in its side. All Rights Reserved. Why Sign In? Details thank you so much on this wealth of information on Ha and DSLR. In this case, the target is the Orion Nebula as seen through a 200mm lens. Now for the CCD trick: Bring the H master into Photoshop as a layer on top of the RGB-flare image. The answer the cost of a narrowband filter like the Astronomik H-alpha tested here. ${cardName} not available for the seller you chose. The idea with these is to simply slide them behind the lens, and one size fits all. Ive previously covered narrowband filters that collect multiple wavelengths (dual bandpass, quad bandpass, etc.). They might not work as expected, and users then blame the filter. Is it worth using the Hb along with the Ha? Here is the official camera compatibility list for the Astronomik clip-in Canon EOS Ha filter directly from the High Point Scientific website. Many Canon lenses do this, but if you are using a lens that stops right at infinity, it will not work with a H filter inserted behind it as described in this article. So, using Bondic brand UV-activated glue, I attached a string to this filter so I could retrieve it from the slot. The preview images will look very red. Any Cokin or Tiffen style red or yellow photo style pre filter will protect you. Sorry, your monthly warranty plan was removed because these plans are currently only available for single-item orders. All of these images were captured with a Canon DSLR and an Astronomik 12nm Ha filter. I have always loved astronomy and I want to start astrophotography. Im also enjoying your Image Processing Guide very well laid out. Would you recommend a h-alfa filter with a osc camera. The image pasted should default to grayscale mode, with only one channel (gray) in the Channels Tab. The 6nm version of the Astronomik Ha filter has an extremely narrow emission-line filter. When you are satisfied with the final RGB-flare-H image, flatten all of the layers and enjoy your new H-enhanced view of the cosmos. Hi Trevor, SanDisk 128GB Extreme PRO SDXC UHS-I Card - C10, U3, V30, 4K UHD, SD Card - SDSDXXY-128G-GN4IN. What is your ideal method given the filters I already have? The disadvantage is that it can be used only with that camera model. WEVE GOT YOU COVERED: Plan begins 30 days after enrollment and covers mechanical and electrical malfunctions, regardless of the manufacturer's warranty. However, my Astronomik round 50mm H narrowband (12 nanometers) filter with metal edging does not. Once I inserted the filter, I made sure to cover the filter slot with a small piece of material to keep any incidental light from sneaking in. In this post, Ill explain why a clip-in DSLR h-alpha filter is not only the most powerful filter in your kit, but the one youll probably use the most. ${cardName} unavailable for quantities greater than ${maxQuantity}. Write a Review . Designed for astrophotographers, the Canon Ra specializes in capturing the reddish cosmic glow thats invisible to many other devices. I bought Astronomiks 12nm (nanometer) bandwidth version. The result is a master frame for each specific filter that has more and cleaner data than any single shot. You can also use a Burn/Dodge tool to selectively add or subtract H data from your final image (which is also possible using layer masks, but the process is a bit more complicated). From here, you can bring the stacked TIF file into Adobe Photoshop to extract the red channeland process in the monochrome image. Moonlight and urban light pollution are mostly shut out. Being a beginner in AP Im happy with my modified DSLR and I expect a big step forward with the Ha filter. Alan Dyer is an astrophotographer and astronomy author based in Alberta, Canada. Some of these items ship sooner than the others. But my interest was in using the Astronomik filter to shoot nebula-rich fields along the Milky Way with a one-shot color camera, the Canon EOS Ra, the astronomy-modified version of the Canon R. The Ra (now discontinued) is designed to record a greater level of the deep red H light from emission nebulas. There have never been so many choices available, with each one offering their own advantages and disadvantages. CLAIM LIMIT & FEES: $3,000/12-month period claim limit for the total cost of all repairs, replacements and reimbursements across all claims. The result is a very red image with pronounced detail. (I have detailed my methods for processing in Adobe Camera Raw and Registar on a DVD that is out of print, but I can burn one for you if you are interested. When you are satisfied with the final RGB-flare-H image, flatten all of the layers and enjoy your new H-enhanced view of the cosmos. Hydrogen-alpha filters are narrowband filters. I save this new RGB-flare master as a Photoshop file with layers before flattening it to simplify the next step. However, unlike dual-, tri- and quad-band filters such as the Radian, which can produce color images, a single-band H filter lets through only deep-red light, and so yields an image that is all red. Each of my H exposures last between four and eight minutes, which is why you need good polar alignment. One of the most striking features of the Canon Ra is its vari-angle LCD screen, which makes it a easy to view your target no matter where you are pointing the camera. Beginners often ask me which narrowband filter (line filter) I recommend buying first, and its always a Ha (or H) filter. Trevor, There was a problem completing your request. When I first got started with astrophotography, I modified a canon 300D (Digital Rebel) with a full spectrum modification. Sorry, we were unable to perform your search at this time. I am currently imaging IC434 and noticed that my Hb images are coming out very blue. How is it that you do not use the 500 rule? Filters Clip Filter for Canon EOS APS-C H-Alpha. The 20Da and the 60Da are older, standard DSLR cameras that utilize mirrors in their viewfinders. I know it would be at least 4 times more inefficient than a monochrome camera (which I do not own). Many nebulae in the night sky (and even some galaxies) emit a strong signal of light in this wavelength and a hydrogen-alpha filter helps to isolate and record this signal with your DSLR camera. Astronomik filters are made in Germany and are guaranteed for ten years by the manufacturer! Learn more how customers reviews work on Amazon. For example, using an H filter pushes the focus slightly past infinity, so you need to use a lens that can focus past infinity as well. If youre lucky, there will be a bright star near your nebula to use as a reference like my example of NGC 7000 above. Heres where the real fun begins: adding the H data. I would not recommend using a stock DSLR or mirrorless camera with an H filter because they roll off their sensitivity to deep red. Here is a photo of the constellation Cygnus from my Bortle Scale Class 8 backyard using a 17mm camera lens. There is a more advanced way to add H data to your astroimages one that borrows from CCD imaging. Other companies Kase,Optolong, andSTC Optics make clip-in nebula filters for Canon R and other brands of cameras, but not single-band Hfilters. EASY CLAIMS PROCESS: File a claim anytime online at www.Asurion.com/Amazon or by phone. What 95 mm objective filter will work so lens will not heat up? Also, you mention Ontario Telescope sells these filters, but I can not see them on their site. Quick, easy, and frustration-free claims. The most important of these specific bands of light is called Hydrogen alpha or H-alpha light, which is emitted by many of the nebulae in the night sky. But when it comes to having a capable mount to drive your gear, sometimes more equatorial mount, Sky-Watcher CQ-350, skywatcher CQ350. I followed the instructions in this link: Last night I used a 50mm lens to capture 60 2 minute subs of the Southern sky and the four eye popping nebulae Eagle, Omega, Trifid, and Lagoon. Narrowband filters designed to thread externally to the large lens objective are not common, are a filter of that size (77mm) would be very costly. By shooting through a narrowband filter, you block all extraneous light except those narrow wavelengths emitted by nebulas. The Milky Way stretches across the sky above the authors home in California in this image taken with the Canon EOS Ra. Great article am looking into getting one of these now to help with nebula work. Using an H filter with a one-shot color camera, which has its own set of red, green and blue micro-filters over each of the sensors photosites, has the disadvantage that only one-quarter of the photosites, the red ones, record any signal. Id recommend sticking with EF lenses for astrophotography in general, from a quality perspective. If you live in the city, a Ha filter cuts through even the most severe light pollution. Although the 48mm (2) filter format can be utilized in more imaging configurations (such as a dedicated astronomy camera) a DSLR clip-in filter fits underneath your camera lens. Thx Paul. Our price: RRP: $ 245.00 $ 207.00. ready for shipping in 3-5 weeks. Clip-in filters like the Astronomik 12nm Ha (and similar clip filters) are compatible with Canon EF lenses. Thus the issue with exposure times described next. Now that I know it wasnt a waste, have you a recommendation for what the next filter should be or am I fine with just the one? Remember how we dithered the frames earlier? You can use a clip-in hydrogen-alpha filter with a camera lens, and images collected in h-alpha through a short focal length are absolutely breathtaking.

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