星河科研社为锐星光学Sharpstar / Askar的香港独家总代理，Askar V 摄星镜将于5月上旬发货，定价HK$11800，现已接受预订。于2023年4月15日至2023年5月15日期间预订Askar V 摄星镜会每台额外赠送一个32mm银色导星镜。预售活动会在2023年5月15日截止，在2023年5月15日后订购则不再赠送银色32导星镜。

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摄星镜: https://eshop.astro.hk/hk/catalogs/products/7acbd68c-03a7-4b67-a037-5720625a5b92 

Askar新推出的Askar V 摄星镜是在现有产品上做了一大创新，其不仅拥有60mm和80mm两种主镜选择，同时还配备了减焦镜、平场镜和延焦镜三种附加配件，让您可以根据不同的焦段需要进行调整，为用户在拍摄时提供更多选择。

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主镜均采用了三片式APO设计，其中两片为ED玻璃，能有效消除色差，增加图像的清晰度。V60原生焦比f/6，焦距360mm；V80原生焦比f/6.25，焦距500mm。三种附加配件通过螺旋设计，适配60主镜和80主镜的两种状态，每一款附件后端均配有M48、M54接环，后截距为标准55mm，内置有2英寸滤镜螺纹。

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减焦镜与主镜搭配使用时能有效减少曝光时间，扩大望远镜视角，满足您更多的拍摄要求。而V平场镜能有效改善场弯曲，提高边缘像质，减小畸变。另外，V延焦镜它既可支持与不同口径的主镜相连接，又能有效延长焦距，使拍摄到的图像更加清晰，观测到更多的细节。

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 新产品亦将于6－7月到货，以下产品也开始接受预订，价格会稍后更新：

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

ZWO AM3谐波赤道仪，AM3净重3.9kg，承载能力从8kg到13kg不等。机身内部结构优化，采用谐波齿轮减速器和同步带，带来更精准的控制和惊人的300:1减速比，亦用作赤道仪或经纬仪，也可以通过 Wi-Fi 和蓝牙或手持控制器控制安装座。

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

ZWO 2600MC Duo 天文相机将成像和导向传感器结合在一个紧凑的机身中。 主传感器是SONY IMX571，配备原生 16 位 ADC、14 檔动态范围和 3.76um 方形像素阵列。导向传感器是 Type 1/1.8 SC2210，具有出色的 NIR 灵敏度。 传感器尺寸为 7.68mm x 4.32mm。 它具有 4umx4um 像素，阵列为 1920x1080，全深度为 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 集望远镜、电动调焦器、天文相机、ASIAIR天文智能盒子、赤道仪、发热环、滤光片切换装置于一体，机身重量仅3KG。通过使用移动应用程序，它可以轻鬆捕捉太阳、月亮、星系和星云等天空物体。

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折射式摄星镜: 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是折射式摄星镜，具有强大的平场光学设计，可让您免于昂贵的场平场成本。 它消除了计算平片后焦距和连接各种附件以达到该距离的麻烦。 您可以连接任何可能需要的配件。 只要目标被聚焦，整个光学系统就可以完美成像。 这使得整个设置过程更加方便，并节省您的时间，让您更加关注图像拍摄本身。

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.