星河科研社為銳星光學Sharpstar / Askar的香港獨家總代理，Askar V 攝星鏡將於5月上旬發貨，定價HK$11800，現已接受預訂。於2023年4月15日至2023年5月15日期間預訂Askar V 攝星鏡會每台額外贈送一個32mm銀色導星鏡。預售活動會在2023年5月15日截止，在2023年5月15日後訂購則不再贈送銀色32導星鏡。

Galaxy Scientific Group is Hong Kong sole dealer of Sharpstar and Askar. The Askar V Astrograph will arrive in early May, priced at HK$11800, and available on eshop for pre-order now. If you pre-order the Askar V Astrograph between April 15, 2023 and May 15, 2023, you will get an extra 32mm silver guidescope for each telescope. The pre-sale event will end on May 15, 2023. If you order after May 15, 2023, you will no longer be given a 32mm silver guidescope.

Askar V Astrograph攝星鏡: https://eshop.astro.hk/hk/catalogs/products/7acbd68c-03a7-4b67-a037-5720625a5b92 

Askar新推出的Askar V 攝星鏡是在現有產品上做了一大創新，其不僅擁有60mm和80mm兩種主鏡選擇，同時還配備了減焦鏡、平場鏡和延焦鏡三種附加配件，讓您可以根據不同的焦段需要進行調整，為用戶在拍攝時提供更多選擇。

Askar V Astrograph is a newly launched product has not only two objective lens (60mm and 80mm), but also three accessories (reducer, flattener, and extender). Users can choose and adapt accessories according to their needs in focal lengths.

V60和V80主鏡均採用了三片式APO設計，其中兩片為ED玻璃，能有效消除色差，增加圖像的清晰度。V60原生焦比f/6，焦距360mm；V80原生焦比f/6.25，焦距500mm。三種附加配件通過螺旋設計，適配60主鏡和80主鏡的兩種狀態，每一款附件後端均配有M48、M54接環，後截距為標準55mm，內置有2英寸濾鏡螺紋。

The V60 objective lens and V80 objective lens, both adopt a triplet APO design, two of which are ED glass, which can effectively eliminate chromatic aberration and increase image clarity. The V60 native focal ratio is f/6, and the focal length is 360mm. The V80 native focal ratio is f/6.25, and the focal length is 500mm. V is equipped with three additional accessories that are adjustable to 60mm or 80mm scales through rotation. The rear end of each accessory has M48 and M54 adapters with 2" built-in filter thread and the back focus is a standard 55mm.

V減焦鏡與主鏡搭配使用時能有效減少曝光時間，擴大望遠鏡視角，滿足您更多的拍攝要求。而V平場鏡能有效改善場彎曲，提高邊緣像質，減小畸變。另外，V延焦鏡它既可支持與不同口徑的主鏡相連接，又能有效延長焦距，使拍攝到的圖像更加清晰，觀測到更多的細節。

Using the reducer, can effectively reduce exposure time and expand the field of view to meet more of the shooting requirements. While the V flattener improves field curvature, edge quality and reduces aberrations. Indeed, V extender supports both the connection to objective lenses of different apertures and the effective extension of the focal length, allowing clearer images to be captured and more detail to be observed.

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另外，ZWO 新產品亦將於6－7月到貨，以下產品也開始接受預訂，價格會稍後更新：

ZWO AM3諧波赤道儀: https://eshop.astro.hk/hk/catalogs/products/75b5cab5-9f04-4605-b027-4205323e1e10 

ZWO AM3諧波赤道儀，AM3淨重3.9kg，承載能力從8kg到13kg不等。機身內部結構優化，採用諧波齒輪減速器和同步帶，帶來更精準的控制和驚人的300:1減速比，亦用作赤道儀或經緯儀，也可以通過 Wi-Fi 和藍牙或手持控制器控制安裝座。

With a self-weight of 3.9kg, AM3 has a large load capacity from 8kg to 13kg. The internal structure of the body is optimized with the strain wave gear reducer and synchronous belt, bringing more accurate control and an amazing reduction ratio of 300:1. It is also multi-functional that can be used as both an equatorial mount or an altazimuth mount. You can either control the mount via Wi-Fi and Bluetooth, or a hand controller.

ZWO ASI2600MC DUO 天文相機: https://eshop.astro.hk/hk/catalogs/products/4ede0b26-9654-4f44-94ce-5bfd63b46656 

ZWO 2600MC Duo 天文相機將成像和導向傳感器結合在一個緊湊的機身中。 主傳感器是SONY IMX571，配備原生 16 位 ADC、14 檔動態範圍和 3.76um 方形像素陣列。導向傳感器是 Type 1/1.8 SC2210，具有出色的 NIR 靈敏度。 傳感器尺寸為 7.68mm x 4.32mm。 它具有 4umx4um 像素，陣列為 1920x1080，全深度為 8780e。

The ASI2600MC Duo combines imaging and guiding sensors in one compact body. The main sensor is the Sony IMX571 coming with a native 16-bit ADC,14stops dynamic range, and a 3.76um square pixel array. The guide sensor is the Type 1/1.8 SC2210 with excellent NIR sensitivity. The sensor size is 7.68mm x 4.32mm. It has 4umx4um pixels with an array of 1920×1080 and a full depth of 8780e.

ZWO Seestar S50: https://eshop.astro.hk/hk/catalogs/products/0fdc1b1f-989e-4f8b-92e5-be7d10ef51d9 

ZWO Seestar S50 集望遠鏡、電動調焦器、天文相機、ASIAIR天文智能盒子、赤道儀、發熱環、濾光片切換裝置於一體，機身重量僅3KG。通過使用移動應用程序，它可以輕鬆捕捉太陽、月亮、星系和星雲等天空物體。

Seestar S50 integrates a telescope, electric focuser, astronomical camera, ASIAIR intelligent controller, equatorial mount, heating band, and

filter switching device into a single unit, with a

body weight of only 3KG. With the use of a mobile app it allows for easy capturing of sky objects such as the Sun, Moon, galaxies, and nebulas.

ZWO FF65、FF80、FF107、FF130 APO折射式攝星鏡: https://eshop.astro.hk/hk/catalogs/lists?sft=618103aa-e34d-43a8-bf17-067836afbbe2&sfc=0942a12d-1377-4a1c-8f13-c67add3a1623&sfpf=7800&sfor=default 

ZWO FF65、FF80、FF107、FF130 APO是折射式攝星鏡，具有強大的平場光學設計，可讓您免於昂貴的場平場成本。 它消除了計算平片後焦距和連接各種附件以達到該距離的麻煩。 您可以連接任何可能需要的配件。 只要目標被聚焦，整個光學系統就可以完美成像。 這使得整個設置過程更加方便，並節省您的時間，讓您更加關注圖像拍攝本身。

The ZWO FF65、FF80、FF107、FF130 APO are refractive astrograph with the powerful flatfield optical design which saves you from the expensive cost of a field flattener. It eliminates the trouble of calculating the back focus distance of the flattener and connecting various accessories to achieve that distance. You can just connect any possible accessories you need. As long as the target is focused, the whole optical system is perfect for imaging. This makes the whole setting up process much more convenient, and saves your time, allowing you to pay more attention to the image shooting itself.