--- product_id: 86705229 title: "Telescope Laser Collimator 1.25inch, Bysameyee Calibrator with 2’’ Adapter for Newtonian Reflector Telescope Collimation" brand: "bysameyee" price: "326.11 DT" currency: TND in_stock: true reviews_count: 13 category: "Bysameyee" url: https://www.desertcart.tn/products/86705229-telescope-laser-collimator-1-25inch-bysameyee-calibrator-with-2-adapter store_origin: TN region: Tunisia --- # Fits 1.25'' & 2'' focusers 7 brightness levels laser Durable metal body Telescope Laser Collimator 1.25inch, Bysameyee Calibrator with 2’’ Adapter for Newtonian Reflector Telescope Collimation **Brand:** bysameyee **Price:** 326.11 DT **Availability:** ✅ In Stock ## Summary > 🔭 Align like a pro, see the stars like never before! ## Quick Answers - **What is this?** Telescope Laser Collimator 1.25inch, Bysameyee Calibrator with 2’’ Adapter for Newtonian Reflector Telescope Collimation by bysameyee - **How much does it cost?** 326.11 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/86705229-telescope-laser-collimator-1-25inch-bysameyee-calibrator-with-2-adapter) ## Best For - bysameyee enthusiasts ## Why This Product - Trusted bysameyee brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Time-Saving Setup:** Simplifies telescope alignment so you spend less time fiddling and more time exploring the cosmos. - • **Battery-Powered Freedom:** Compact CR2032 battery operation means no bulky cords—collimate anywhere, anytime. - • **Built to Last, Built for You:** Robust metal construction guarantees long-term durability for countless stargazing sessions. - • **Universal Fit, Instant Upgrade:** Seamlessly fits both 1.25'' and 2'' Newtonian reflector telescopes with included adapter. - • **Precision Collimation, Zero Guesswork:** 7 adjustable laser brightness levels ensure pinpoint accuracy in any lighting condition. ## Overview The Bysameyee Telescope Laser Collimator is a precision tool designed for quick and accurate collimation of Newtonian reflector telescopes. Compatible with 1.25'' and 2'' focusers, it features a durable metal body and a red laser beam with 7 brightness levels for optimal visibility. Powered by a single CR2032 battery, it streamlines telescope setup, enhancing your stargazing experience with professional-grade alignment. ## Description Telescope Laser Collimator 1.25Inch, Bysameyee Calibrator With 2’’ Adapter For Newtonian Reflector Telescope Collimation Review: Works just fine - Not perfectly aligned but good enough. I couldn't improve it but I may try again when I have time and a little more patience. Review: UPDATED REVIEW - GREAT SERVICE ( replaces original review"Needs collimation, but not point source ") - Have to say when the supplier read my original review they have been great: Contacted me to check the problem, and have sent a replacement. This worked perfectly, self-aligned out of the box, and then very easy to use on the Dobsonian. Now I have a crisp focussed view of the sky. Cannot fault the service or the new kit - supplier notes they have upgraded their supplier since I purchased the original. Therefore I changed the review to 5* Thanks Bysameyee (ORIGINAL REVIEW: Although well known that a collimator needs first for it to be collimated itself, this is a poor bit of kit. Rigged up a 90 degree bracket to allow rotation on a distant wall. Alignment grub screws fiddly to adjust. Worst of all the spot is more like a long line, so which end (or middle) do you take to be the centre of rotation?) ## Features - Easy to Collimate Your Telescope: Make it easier to collimate your 1.25'' and 2'' reflector telescope, no longer boring and save your time. - 1.25inch Fit: Can fit into 1.25" focusers or diagonals, comes with removable 2" adapter. - 7 brightness levels: Red laser collimation beam with 7 brightness levels - Metal Body: Make it more durable and long-term use. - Battery: Requires 1 CR2032 battery. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07J5WBG4K | | Best Sellers Rank | 22 in Telescope Accessories | | Brand | Bysameyee | | Brand Name | Bysameyee | | Coating | Coated | | Compatible Devices | Tripod | | Country of Origin | China | | Customer Reviews | 4.4 out of 5 stars 1,138 Reviews | | Eye Piece Lens Description | Galilean | | Eye piece lens description | Galilean | | Field Of View | 2 Degrees | | Finderscope | Reflex | | Focal Length Description | 3.175 cm | | Focus Type | Manual Focus | | Item Weight | 8.1 Ounces | | Manufacturer | Bysameyee | | Manufacturer Part Number | Bysameyee | | Model Name | Laser-Kollimator 1,25 Zoll | | Model Number | Bysameyee | | Model name | Laser-Kollimator 1,25 Zoll | | Mount | Tripod Mount | | Number of Batteries | 1 Lithium Polymer batteries required. | | Objective Lens Diameter | 31.75 Millimetres | | Objective lens diameter | 31.75 Millimetres | | Optical tube length | 1.25 inches | | Optical-Tube Length | 1.25 inches | | Power Source | Battery Powered | | Product Features | Laser Collimator for Telescopes | | Telescope mount description | Tripod Mount | | Unit Count | 1.0 count | | Zoom Ratio | 20x-60x | ## Product Details - **Brand:** Bysameyee - **Model name:** Laser-Kollimator 1,25 Zoll - **Eye piece lens description:** Galilean - **Objective lens diameter:** 7.62 Centimetres - **Telescope mount description:** Tripod Mount - **Focus type:** Manual Focus - **Power source:** Battery Powered - **Finderscope:** Reflex - **Item weight:** 8.1 Ounces - **Compatible devices:** Telescopes with focus or diagonal of 1.2 inch or 2 inch ## Images ![Telescope Laser Collimator 1.25inch, Bysameyee Calibrator with 2’’ Adapter for Newtonian Reflector Telescope Collimation - Image 1](https://m.media-amazon.com/images/I/5194g03rbjL.jpg) ## Questions & Answers **Q: Are there adjusting screws to collumate the lazer** A: Yes, it has rubber over the top of them which you have to pry out firstly. **Q: Will this work on a celestron 76? Thanks** A: It will work on any telescope but needs adjusting I bought this as present for my son-Law that’s all I can say **Q: Is it worth getting for a Celestron 114eq?** A: Hi There, Yes I would recommend purchasing this accessory as this will help with collimation of the Primary and Secondary mirrors which basically what it enables you to do is align both mirrors something that should be done prior to using any reflector type telescopes. There are other types on the market but I've found this to be best value for money and if you do upgrade in the future this tool will become vital tool to have. Hope this helps. **Q: Can this be used on a sky watcher heritage??** A: You should be able to use this tool for your scope but you could consider using a Cheshire alignment tool as an alternative. The laser dot on this collimation tool is a little bit oval shaped which I suspect is down to the build quality. YouTube has a lot of useful info on Telescope Calibration methods. Try this before you buy. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works just fine *by 1***8 on 14 October 2023* Not perfectly aligned but good enough. I couldn't improve it but I may try again when I have time and a little more patience. ### ⭐⭐⭐⭐⭐ UPDATED REVIEW - GREAT SERVICE ( replaces original review"Needs collimation, but not point source ") *by A***R on 14 May 2020* Have to say when the supplier read my original review they have been great: Contacted me to check the problem, and have sent a replacement. This worked perfectly, self-aligned out of the box, and then very easy to use on the Dobsonian. Now I have a crisp focussed view of the sky. Cannot fault the service or the new kit - supplier notes they have upgraded their supplier since I purchased the original. Therefore I changed the review to 5* Thanks Bysameyee (ORIGINAL REVIEW: Although well known that a collimator needs first for it to be collimated itself, this is a poor bit of kit. Rigged up a 90 degree bracket to allow rotation on a distant wall. Alignment grub screws fiddly to adjust. Worst of all the spot is more like a long line, so which end (or middle) do you take to be the centre of rotation?) ### ⭐⭐⭐⭐ Had to recollimate the collimator but after that it is plain sailing *by B***Z on 17 July 2023* The TL,DR; is that this can be a fine tool but check the collimation of the device from the factory before relying on it to collimate your newtonian/dobsonian scope. So when I first bought this device, I thought the collimation was reasonable out of the box and used it to collimate my son's skywatcher 200p with reasonable results but at the time I didn't rotate the collimator in the focuser. However, when went back to do another collimation, this time I did rotate the collimator in the focuser/adaptor and it revealed that it was not concentric with the focuser and therefore it's apparent good results were called into question. I should point out that the supplied 1.25/2" converter has a quite a bit of wiggle in the fitment between both the collimator and the adaptor and also between the adaptor and my focuser. For my second attempt I reverted to using the supplied 1.25/2" adaptor which came with our scope which had a more concentric alignment. This still needed the collimator to be shimmed with a few wraps of aluminium foil to take up the slop between the collimator and the adaptor to ensure it had a wiggle free fit. These two steps dramatically reduced the apparent collimation error when rotating the collimator in the focuser but didn't completely eliminate it. What did the trick was to identify that the collimator needed to be adjusted as the factory collimation was slightly off. The screws are hidden, buried in black silicone rubber and there are three, including one under the laser warning label. I used a #10 scalpel to cut and then scrape the stuff out and then used a 2mm hex key to make the adjustments. An exacto knife would do the same job but be careful when prying out the silicone as these knives/scalpels are brittle and can snap off sometimes with alarming results. I then made a makeshift cradle with four nails at approximate right angles nailed into a spare piece of wood and a fifth to prevent the collimator moving backwards (see first picture attached). I then gaffer taped the cradle to the kitchen worktop to prevent any extraneous movement and then aimed the collimator laser at the back of the kitchen wall some 4 metres distance. I had printed out a target (just some concentric circles on an A4 piece of paper - second piture) which I approximated the position of the laser to be central in the circles then started to rotate. By making small adjustments to the now uncovered screws, the position of the laser can be adjusted so that it's range of motion of the laser dot when the collimator is rotated 360 degrees should be able to be reduced to near zero. This is very much a trial and error effort and patience is required. I finally moved the paper to have the dot be central after adjusting to reduce the apparent movement to be close to zero and tried again to confirm the laser did not move when the collimator was rotated. I think my measured variance is now under 2.5mm at 4m which is more than good enough for me. Job done. For anyone following and making a cradle, use thicker nails than I ended up with. My first attempt with 4 inch round nails split my board and the second attempt with long panel pins had a little too much compliance and needed very careful movement to avoid introducing an error by bending them. ## Frequently Bought Together - Telescope Laser Collimator 1.25inch, Bysameyee Calibrator with 2’’ Adapter for Newtonian Reflector Telescope Collimation - Celestron 94119-A 1.25 inch Moon Filter - Suitable for Lunar Observation, Extra Bright Planets or Terrestrial Viewing over Sand or Snow, Black - Celestron 22461 StarSense Explore DX 130 Newtonian Reflector Telescope with Smartphone App-enabled Technology - includes Two Eyepieces, Phone Dock and Height-adjustable Tripod, Black --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/86705229-telescope-laser-collimator-1-25inch-bysameyee-calibrator-with-2-adapter](https://www.desertcart.tn/products/86705229-telescope-laser-collimator-1-25inch-bysameyee-calibrator-with-2-adapter) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-29*