Celestron Oag Back Focus. Since most telescopes have a 55mm back focal length, we are her
Since most telescopes have a 55mm back focal length, we are here to provide Does the ASI533MC require spacers for backfocus? If it does require anything for back focus can you please guide me on what to purchase to achieve the correct backfocus with and I had the Celestron OAG, which was great but too thick; I changed to the ZWO OAG-L for use on my refractor which has a much shorter back-focus. 7x I chose the ZWO OAG because while the prism is smaller, the Celestron one makes backfocus a bit of a chore with the setup I was looking for. Most Newtonian reflectors and some refractors do not #Celestron #EdgeHD #Reducer #ZWO #ASI533MC #OAG #Astrophotography #Telescope This video demonstrates how to achieve the correct back focus with Celestron Edge HD 8" Telescope - both with the 0. Worth mentioning that there are many ways to get to your required back focus. you may need to The back focus distances are as follows: SCT Back focus distance from primary mirror baffle tube lock ring (in) C5 5 in C6 5 in C8 5 in C925 5. Note that because the OAG consumes a significant amount of inward focus travel, some telescopes will not be able to reach focus with this accessory. Pairing a ZWO ASI294MC with a Celestron SCT - Back Focus and OAG Setup James Lamb 8K subscribers 307 Aloha all, I just got the celestron oag and have I think the back focus is right, and with trying each of the settings and differant rings I come up with 133+-. haha. By using the same optical Attach main camera and guide cam and oag to OTA with correct back focus. Celestron's Off-Axis Guider addresses these challenges by: Providing a large 12. Below, I have provide a detailed diagram of the components I’m using and their associated dimensions in the image train to establish the required back This video provides a few possible solutions to the back focus puzzle that you encounter should you want to implement the Celestron OAG on Back focus is the distance from the end of your focuser’s drawtube to the point where your telescope forms an image—the focal plane. It stays attached to my filter wheel (36mm) You really don't need to be at some critical back focus when using an OAG on an Edge which has no flattener. Your ultimate telescope guide on how to set the back focus is here! Learn why back focus spacing is so important to get right, and more! Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. This particular setup is for those who DO NOT use the Off-Axis Guider or Filter Wheel. 35mm. 25, C11, and C14 Advanced Back-Focus with the Celestron OAG AstroBlender • 51K views • 4 years ago Page 1 of 2 - To OAG, or not to OAG, that is the question - posted in Beginning Deep Sky Imaging: For a Celestron EdgeHD 800, 1422mm FL after INTRODUCTION Your Celestron Off-Axis Guider (OAG) allows you to take accurate, long exposure astroimages when used with an autoguider. On the edge 8 hd, I have the non-edge sct back focus with celestron oag - posted in Beginning Deep Sky Imaging: Good morning Cloudy nights! It was in fact cloudy last night so Im up early. For the 8" EdgeHD, the proper back focus distance is 133. SCT's do not have a fixed focal point so you can just move the mirror until the . When your telescope is used in its default configuration, The back focus requirement is not based on the camera, but rather the scope/corrector/reducer. This setup has served me well and it was a bit of a Can anyone advise how to arrive on 55 mm back focus ? Cannot remove any plate other wise won’t be fitted specially between OAG L and The back focal length is advised by telescope manufacturers. The same procedure can be used for Celestron NexStar Evolution 8” HD and Celestron CPC Deluxe 800 which The Celestron OAG Off-Axis Guider is built for astrophotographers who want sharper, more precise images during long exposures. 5mm prism that can be adjusted to move closer to the center of the Back-Focus 101: Celestron EdgeHD: C9. 475 in from 3 in-2 in Reducer For the Celestron 8" EdgeHD, this distance is 133. I hav Celestron OAG back focus to ASI120mm-s - posted in Equipment (No astrophotography): Hello all, I have recently purchased a Celestron OAG to use with my 8 edge hd & . In this episode, of Back-Focus 101 I demonstrate some basic and "advanced" ways to get the correct back-focus spacing using this telescope. 35mm when To do this, you simply remove the reducer + SCT adapter and replace it with the shortened Celestron T-adapter attached to the thin female What accessories I need and can I add the original OAG or OAG-L into my imaging train? To get all of the answers of these questions, you need to If you have the adapters between the OAG and the cameras, then set them up, ensure that both are simultaneously in focus (regardless of back focus) and then keep that setup forever. In this video: I go through my steps to calculate and make back focus simple for my image train on the Celestron EdgeH, Celestron OAG, the Astroasis Oasis In this video I discuss the 146mm back focus requirement for my telescope. 475 in C11 5. the oag doesn't change the spacing requirements for focusing your main camera with the telescope. Since the autoguider and imaging camera share the In addition you can remove the tilt plate and fasten the FW (assuming it's ASI compatible) directly to the back-face of the camera, as shown in the ASI website, thus gaining an extra 5mm. It The Celestron EdgeHD (EHD) is an advanced, flat-field, aplanatic series of telescopes designed for visual observation and imaging with astronomical CCD cameras and full-frame digital SLR cameras. Turn gain to zero and exposure time to 0/auto Bring the main camera into focus on trees/etc by adjusting rear mirror of OTA. 7 focal reducer. 3 yrs Brian Finn Valente Jonathan Monestel That is the scope spec. I am hoping I had the Celestron OAG, which was great but too thick; I changed to the ZWO OAG-L for use on my refractor which has a much shorter back-focus.