Focal reducer lens elements gso

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August undefined, 2024

WebFocal Reducer for viewing/imaging DSO with f/12 Classical Cassegrain I'm considering a GSO 8" f/12 Classical Cassegrain which should give me great lunar and planetary views, but I would also like to view DSO with it as well. Would a 0.5x focal reducer work well to allow for DSO observation and basic astrophotography? WebAug 29, 2015 · one of the better collimation / spacing results i've gotten that was at 1366mm FL (4 mm less than its supposed to be) reducer spacing at 15.88mm (CCDT67) + 55mm (t-ring and camera back distance) i'm using a super low profile T2 thread to M48 that basically gets the CCDT67 as close as is possible to the sensor, increasing distance will result in …

GSO 1.25" 0.5x Focal Reducer - Agena Astro

WebGSO Focal Reducer. A Focal Reducer is an optical element used to reduce focal length, increase lens speed, and in some instances improve optical transfer function (OTF) … cta nsw pty ltd

Are GSO 0.5x focal reducers any good? - Electronically …

WebThe actual focal length reduction will vary a little depending on where the focal reducer is placed in the optical path. The reducer features a 2-element fully multi-coated optical design and blackened lens edges in a black anodized aluminum filter cell. WebMay 12, 2024 · AstroStreet GSO 0.5X Focal Reducer, 2" (50.8mm) Diameter, Made in Taiwan. Brand: AstroStreet. 9 ratings. #1 New Release in Telescope Barlow Lenses. … WebThe reducer features 2-element fully multi-coated optical design and blacked lens edges in a black anodize aluminum filter cell. It also has additional 1.25" filter threads, so you can … earring and necklace sets silver

GSO Telescopes & Accessories Agena Astro

Web4 2011. 06. 12. GSO 2.5x 3-element Barlow lens. Advantage: Teljesíti az elvárt követelményeket. Disadvantage: Erős fényű objektumról fényvisszaverődés valahonnét! Precízen megmunkált szépen kidolgozott forma.Már a fogása is más az érdesített felület miatt,mint a GSO 2x!A szorító gyűrű is figyelemre méltó,nagyon praktikus!Előnyei … WebApr 11, 2010 · Assuming that your reducer is similar to the GSO you need to get the center of lens about 51mm out from the sensor. The sensor on the 1600 recessed 17mm below the top edge of the T2 ring that came on the camera. 51 mm - 17 mm = 34 mm. Measure the length of the 1,25" adapter. cta ns healthWebJan 3, 2024 · Longer exposures and better tracking will be required than with smaller focal ratio 8-inch telescope. Even with a 0.8x focal reducer, the focal ratio would be f/9.6. For imaging, I would recommend the GSO 8-inch f/8 Ritchey–Chrétien, which costs the same as the GSO classical Cassegrain. c tan shard of the nightbringer

"WebThe reducer features 2-element fully multi-coated optical design and blacked lens edges in a black anodize aluminum filter cell. It also has additional 1.25" filter threads, so you can screw/stack additional filters on to this reducer, it also have an option 25mm extension tube. Art No.: RD002 0.5X Focal Reducer 2" " - Focal reducer lens elements gso

Focal reducer lens elements gso

TPO 1.25" Focal Reducer - 0.5X with 25mm Extension

WebJan 27, 2024 · From the specifications of the reducer: "the "working distance" of this specific reducer is estimated to be 53mm, i.e., this reducer will provide a reduction of 0.5x when the center of its lens assembly is placed 53mm from the focal plane of the eyepiece or imaging device".Apparently, the reduction varies with focal distance, so a slight mismatch on the … WebMar 28, 2013 · 0.5x Focal Reducer for visual - posted in Eyepieces: Hello, I have a question about these generic 0.5x focal reducers (Antares, GSO, TS), mostly used for imaging. From what Ive read these are simple doublet achromatic lenses 25mm f/4 that when placed at aprox 50mm from the field stop of the eyepiece it reduces the focal ratio …

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WebEffective focal length: 414 mm (with corrector/reducer TSRED25DEL) Effective focal ratio: f/4.4 (with corrector/reducer TSRED25DEL) Objective: Air-spaced triplet objective with two ED elements: Focal ratio of the objective: f/5.5: Focuser: 3" rack and pinion focuser with M74x1 female thread connection and 2" / 1.25" receptacle: Drawtube travel ... WebJul 13, 2015 · The focal length for these ~25mm aperture reducers is about 95mm. For a 0.5X reduction factor the lens must be placed about 1/2 its focal length from the sensor, …

WebDec 7, 2016 · This superb 0.5x focal reducer has been designed to be used with a wide range of modern CCD cameras and eyepieces. The lens has a female 1.25" eyepiece filter thread and can be attached to camera and eyepiece nose … http://www.gs-telescope.com/content.asp?id=136

WebFocal reducer for GSO RC 8". 0.00. Marcelo Alves. # 1/22/2024. What's the best focal reducer for RC8? My camera is Canon T5 modified with APS-C sensor. I only used my … WebFeb 21, 2010 · If the reducer-to-focus distance is longer than 1/2 the reducer's focal length, the reduction factor will exceed 0.5X, which for a simple lens is too aggressive. The 0.7X reducer's longer working …

WebSep 26, 2024 · The focal length of the reducer is the distance at which light that entered the reducer "from infinity" (meaning: parallel light rays), is forced (by the reducer) to converge to a single dot. This image shows the "firestarter" method of measuring focal distance of reducers using the Sun as the source of parallel light rays:

WebMay 12, 2024 · Petzval design vs Triplet with a flattener - posted in Refractors : I am looking for a quality refractor with a focal length in the range of 500mm to 700mm. One of the questions I have is what are the inherent advantages or disadvantages of these designs, if any. I am most familiar with Televue and Stellarvue and they both have scopes in that FL … cta of abd/pelvisWebGSO 6x30mm Straight Through Finder Scope with Mounting Bracket (Base Not Included) $44.00. In Stock. More Info. Free US Shipping. GSO 1.25" 2x "Shorty" Achromatic Barlow Lens # GS2BL. $33.95. In Stock. Add to Cart. cta not in serviceWebThis 2" 0.5x Focal Reducer contains fully multi-coated optics with two-element optical design. Black anodized lens cell curtails reflections from errant light. Offers considerable flexibility for set up modification. Free shipping $49.95 In Stock Add to cart As low as $1.61/Month Celestron .7x Focal Reducer for 8" EdgeHD Telescopes SKU: CEL-94242 earring and necklace standWebThe TS CF-APO lens. The powerful air-spaced triplet lens has two APO elements. One of them is made of FDC100, which is comparable to FPL53. The result is good chromatic correction despite the relatively fast f/7 focal ratio. The elements are of course adjustable and are optimally set before shipping. The mechanics of the TS CF-APO earring animeWebThe working distance of the GSO 0.5x focal reducer with 1.25" barrel and the GSO 0.5x focal reducer with 2" barrel is about 51mm to 53mm, approximately, from the middle of the metal cell that holds the lens. Figure 6 shows a 1.25" focal reducer from GSO configured with a ZWO ASI224MC camera. cta of carotid cpt codeWebProduct Details. GSO's popular 1.25" 0.5x focal reducer screws on to any accessory such as eyepieces, camera adapters, etc. that accepts standard 1.25" threaded filters and provides a nominal reduction of 0.5x. Use of … ct annual reportsWebGSO's new 2" 0.5x focal reducer screws on to any accessory (such as eyepieces, camera adapters, etc.) that accepts standard 2" threaded filters (with M48x0.75 specification … earring and nose ring chain