2001 - 2022 Canada-wide Astronomy Buy & Sell, CLAVE of Paris HELICAL screw FOCUSER with Capstan-handles, plus Draw Tube. All of the amazing deep-sky astrophotography images you have ever seen were stretched like this. This can create an inaccurate histogram reading, and you wouldnt want to include these edges in your final image. I recommend using at least 15 support frames to properly calibrate the image for further processing. It is a robust graphics software designed primarily for photography and design, but many amateur (and professional) astrophotographers use Photoshop for astrophotography image processing. In the world of astrophotography telescopes, this is absolutely tiny! Thanks for making great videos and sharing amazing results! The large imaging circle means that your images will not show vignetting near the edges of the frame. It will be so kind of you, if you can spare time to respond. The RedCat 51 is small, beautifully designed, and versatile. Thank you. Regular Price $3600 + tax !!! The Ohara FPL-53 ED Glass is a top of the line material found only in the best apochromatic refractors. Your videos and tutorials are awesome. Click on Select > Color Range > Sampled Colors. The William Optics Zenithstar 73 APO has an f-ratio of F/5.9. In early 2020, William Optics announced a Nightcat version of their popular imaging refractor exclusive to OPT. I did have a question for you. William Optics Apochromatische refractor AP 61/360 ZenithStar ZS61 II OTA Guidescope-Set. The field rotator includes markings for each degree of rotation. Massive deep sky objects such as the Carina Nebula will fit into the image frame in their entirety. Roughly 8 years later, William Optics releases a high-end apochromatic refractor that targets the wildlife photography market. Its possible to damage the scope attempting to follow them with the new design. Thank you and more power. Hi Trevor, Quick View. Download: The Lagoon Nebula in RGB. At this stage, we will balance the color of the image by setting the black point, and the white balance. The dedicated RedCat erect image diagonal fastened to the telescope. WebWilliam Optics RedCat 71 APO Telescope Red (T-C-71RD) $ Quick View. Your email address will not be published. Since I was a teenager, Ive wanted to get into astrophotography and am finally in a position (and location!) The Canon 60Da attached to my William Optics Zenithstar 73 refractor telescope. There are a LOT of great photo opportunities available to you with the 70-200mm and you can use the lens correction functions of Adobe Camera Raw to correct any vingetting/abberation/distorted field issues. The example images shared on this page should give you a good idea of what you can expect in terms of astrophotography with this compact refractor. The RedCat mounted to a Sony a7R and the TechArt Pro adapter. Between Red Cat51 and William Optics Zenithstar 73 APO, which one I would have the best performance? For nature and wildlife photography, the RedCat 51 has a minimum focus distance of 3.7 meters. secondly should i go for complete set up as suggested by you. The camera and telescope equipment used for the photo on this page. Remove the M48 Adapter on the RedCat to fasten the diagonal or install a 2-inch filter. Im not asking you to make the choice for me, but I want to make sure Im not missing anything since I have the Z61 ahead in pretty much every category for astro (except looks, and the Z61 is no slouch there, either). High-Quality Refractor Telescopes, Binoculars, Eyepieces, Diagonals and other Optical Accessories. The 4-element Petzval design, unique focal length, and helical focuser. Ashley plays baseball and it is a ton of fun capturing the action. So, if my calculation is correct, a bit more than 12 feet without the extension tube. If you dont believe me, have a look at this image of the Witch Head Nebula taken using the RedCat 51 by Mehmet Ergn. WebWhen the telescope is pointed at certain angles (like straight up), the weight of your camera equipment can be enough for the focuser to fall out of position over time. I had a chance to test the RedCat 51 on the night of the full moon. WebThe William Optics Zenithstar 73 APO has an f-ratio of F/5.9. Hello Trevor- The focuser tension ring allows you to precisely control the level of friction desired, and also can also lock the tube in place when needed. Woodland Hills Camera & Telescope has a variety of beginner and professional telescopes available for sale to fit every budget and user experience level. This design aspect completely changes the user experience of the RedCat, whether you use it to photograph the night sky or a Black-crowned night heron. I like to start by cropping the image slightly, just enough to remove any stacking artifacts around the edges of the image. The diagonal will hold a 1.25 eyepiece for visual observing, or spotting scope purposes. You can watch the complete journey leading up to this image in the following video: Photographing the Andromeda Galaxy. I think the final decision comes down to the types of targets you want to capture. The default name of this file will be Autosave.TIF. The final stacked image includes 67 x 2-minute exposures (2 Hours, 14 Minutes Total) at ISO 800. If you are opening the Autosave.TIF file that DeepSkyStacker created on its own, you first need to convert the image to 16-bit, by clicking Image > Mode > 16-Bits/Channel. These plotted points will now give us a reading of the pixel information and the current balance of colors in the image. JavaScript seems to be disabled in your browser. Feel free to try using the exact settings I have used to stack the image, including the sigma-clipping combination method to stack the light frames. Before I cover items such as the filter slot and modular mounting options, lets dive into the core specifications of the RedCat 51. The weight totals 8.5 lbs so that should work with my new Star Adventurer. Large nebulae that traditionally fill the frame in a typical wide-field setup are captured with plenty of surrounding space and additional star clusters and nebulae in the frame. This is a discreet location in the imaging train to thread a light pollution filter inside of the RedCat 51. Martin, Hi Trevor, I have always been a fan and an avid subscriber! This is my edit of your image. The diagonal can then be threaded directly to the base of the field rotator for visual observing or spotting scope purposes. Make sure that the Sample Size (found at the top left of the screen) is set to 5 by 5 average for the best results. With a focal length of 430mm, youll be able to capture large deep sky objects such as emission nebula and open star clusters. Use a small Allan key (0.7mm) to unscrew the three grub screws just enough so that you can turn the M48 adapter counter-clockwise with the field rotator locked. Thank you Loretta. This is not an ideal time to capture deep sky objects in broadband true color, so I used an Optolong 7nm Ha filter inside of the RedCat. This little telescope adds very little weight, yet provides reliable guiding results night after night. But after saw RedCat 51 from you open box video, I cannot make my decision now. With my heavy full-frame DSLR camera attached, the focuser held its position even after pointing towards the Zenith and a Meridian flip. 22.0.1 They have moved so much around, for no good reason, that its impossible to follow along. The Sky-Watcher EQ6-R Pro with a Zenithstar 73 telescope attached. This base mount also fits the Sky-Watcher Star Adventurer Pro and adds some serious stability to and improved aesthetics over the original base. All day, started over from scratch 5 times. Required fields are marked *. Minimizing the size of the stars in your image is a great way to draw more attention to your deep-sky object. Love it. Im pretty new to astrophotography and have learned a great deal from you. It may take several astrophotography image processing sessions to understand what makes a great image in your eyes. ZWO ASI071 MC-PRO APSC Camera. The telescope tracked the apparent movement of the night sky thanks to Sky-Watcher HEQ5 equatorial telescope mount. You may be asking yourself if there are alternatives to the RedCat to consider, with a comparable optical design and size. The elongated star patterns displayed when pointed at a bright star create an obvious and distinct guideline to reference when using adjusting the helical focuser. There is also an unnatural glow coming from the bottom of the image. You can watch my video explaining my involvement with this project here: I Designed My Ultimate Telescope. For the Andromeda Galaxy, I like to see it in portrait orientation so the galaxy is on an angle. The William Optics Zenithstar 73 APO is available at OPT, AstroBackyard | Astrophotography Tips and Tutorials2022. The sleek red finish of the RedCat 51 signals its individuality and charm. The noise reduction tool is found under the Detail Taband can be controlled using the Luminance slider under the Noise Reduction heading. I stacked 33 sub-exposures of 4-minutes @ ISO 1600 each to create a total integrated exposure of 2 hours and 12 minutes. Deep sky object photographic data courtesy: DSS/STScI. The telescope is held securely inside the mounting rings and can be adjusted back and forth to improve balance if necessary. Ive only been in it for a few months, but its fun! Now its time to open the TIF file you created in Adobe Photoshop. The telescope pictured below is an excellent choice in this regard, as the focuser on the William Optics Zenithstar 73 is robust, smooth, and locks. In my experience with the Z73, the combination of 430mm at F/5.9 was just right for collecting long exposure astrophotography images of the Butterfly Nebula and Heart Nebula. Dit is de afstand van de objectieflens of de spiegel tot het brandpunt. Now that the noise is under control, we can tackle the subtle glow at the bottom of the image. Download: The Lagoon Nebula in RGB. Hi, I look at your pages often as I meander from landscape photography to my daughters sports photography to now needing a new passion with an Edge 11 HD sitting in my garage for a few years. I wanted to know if you would be willing to do a workshop? Keep it up, bro. For the best experience on our site, be sure to turn on Javascript in your browser. The focal ratio of a telescope represents its light gathering ability, and the Z73 hits the sweet spot. These values will increase shortly, as we will pull the data forward even more. One tip Id like to share is to process two entirely different versions of the image. You can change this file location in the output tab of the stacking settings option. What is the best all purpose light pollution filter that will work with the Redcat? Start by using the Color Range Tool again, selecting Highlights from the drop-down menu. just going to add to the words of thanks for not only helping me finally make the jump and do it right (Spacecat, connected to an unmodified Eos80D, and will be mounted on a Skyguider Pro once the new tripod arrives!!). first of all a big compliment on your great posts and videos and for sharing your experience. 2-inch (48mm) filters conveniently thread inside of the Flat73 field flattener. It means extremely wide-field deep sky images. Using the Lasso Tool (found in the main toolbar), hold down the ALT key, and draw around the areas of the Andromeda Galaxy that you do not want to apply a star minimizing effect to. This time around, I used an ultra-wide-field refractor telescope, the William Optics RedCat 51. Star charts generated using Cartes du Ciel.. (learn more about the benefits of using drizzle). Use the Register Settings shown in the image below as a reference. The new mounting ring design is an improvement over the original, and mounting the 50mm guide scope was straightforward. William Optics RedCat 71 APO Telescope Red (T-C-71RD) $ Quick View. Once I discovered the clarity and sharpness provided by an apochromatic refractor telescope, I began using my astrophotography telescopes for bird photography. I have used a number of apochromatic refractors for daytime photography in the past, but none of them felt natural because of the rack and pinion focuser. https://www.cloudynights.com/topic/796306-andromeda-m31-with-redcat-51-altaz-canon-eos-rebel-t7i/?p=11470948. Aside from the impressive lens design, the helical focuser is the single biggest differentiating factor between the RedCat and a typical imaging APO. If you are having trouble finding a RedCat 51 in stock, the Radian 61 Triplet APO and William Optics Zenithstar 61II (shown below) are both excellent options. The matching red low profile dovetail bar can be used with either a standard Vixen mount saddle or the photography-based Arca-Swiss style mounting bracket. Alternatively, you can save the stacked .TIF file by clicking Save picture to file, at which point it will convert the image to 16-bit mode. The William Optics Zenithstar 73 is an apochromatic doublet refractor telescope built for astrophotography. Espacio Celeste. Long time terrestrial photographer but now wanting to photograph the night sky. It appears that not all the steps you used are applicable to CS6. The 250mm focal length and F/4.9 focal ratio mean that the RedCat can be enjoyed as much by wildlife photographers as it is by amateur astrophotographers. Along with the Z61, it is easily one of the most manageable astrophotography telescopes Ive ever used. Im about to buy a really small, lightweight refractor that I can use with the DSLR on my skytracker. I am planning to buy a Redcat 51 for my Pentax K-500. Congrats . (Pre Order)New Fluorostar 156 (With Feather Touch 3.5" Focuser), (Pre Order)New Fluorostar 156 (Innovative Bahtinov Mask Cover (Patented) included). To access this feature, click Filter > Camera Raw Filter. Fluorostar 91. Adjusting focus during frantic wildlife photography moments is now much more fluid and responsive, while the precision and rigidity needed for deep sky astrophotography are retained. The William Optics Zenithstar 73 APO with a 50mm guide scope attached. To start, select all of your light frames (the actual pictures) by clicking the Open picture files button on the top left of the screen. What does this mean for astrophotography? The integrated data now has a much better signal-to-noise ratio, which will make the processing and manipulation techniques in Adobe Photoshop much more effective. Your photo editing guide great as well! If everything looks in order, you can go ahead and click check all, followed by Register checked pictures. I just start astrophotography, and prepare to buy my first telescope. You might have done this already, but can you talk about the software that you use in the field to capture the frames? De toepassingsgebieden geven u een globaal overzicht van de geschikte doeleinden van de telescoop. From precision refractors to easy-to-use Dobsonian telescopes to Schmidt Cassegrain telescopes perfectly suited for observing and imaging to professional-level Astrographs - telescopes.net has it all. Quick View. Do I need any adapters or accessories if I am trying to use the Redcat with my Nikon z7? Label each layer with the adjustment you have made, and then you can save the complete .PSD file with the ability to go back and edit at any stage later. Hi David! El mejor asesoramiento y servicio posventa. (See my experience using the giant Fluorostar 132). Some of the deep sky images I have captured using the William Optics RedCat 51 and a DSLR camera. William Optics. 12" Meade LX-200 GPS Schmidt Cassegrain with Giant Field Tripod, X-Wedge, Bahtinov Mask and two dovetail plates. I think youve briefly mentioned it but I am still figuring out what I would need. Im now going to go and grab your book so I am properly prepared for those long Deep Sky shots in the coming months of Shelter at Home hopefully my wife will continue to be gobsmacked and agree to the many years of kit upgrades that will follow , Thank you very much for the kind words James! Holding ALT will ensure that this action de-selects area of the selection. I have some good news. William Optics has released some incredible wildlife footage shot using the RedCat, a testament to this quality. I prefer to use the Z73 with my Canon 60Da DSLR camera over a dedicated astronomy camera, to maximize the APS-C sensor and wide-field imaging capabilities. 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