低于$ 500

描述 SXG-HAL130，SXG-AL130，APP-TL130和SKYPOD三脚架的适配器。您可以使用它适合1/4英寸的螺丝相机头。 眼镜 重量 380克 保修单 泼妇保证其产品在基于零件类型的指定期限内没有材料和工艺的初始缺陷： 点击这里阅读更多 ...

描述 提供更精细的焦点调整 通过安装Vixen Dual Speed Focuser，可以升级泼妇望远镜上的齿条和小钉子的焦点设备，以提供更优质的焦点调整。允许双速进行双速调整。双重速度聚焦器可以通过卸下附加的焦点之一来改装到机架和小齿轮焦点。双速焦点允许1/7速焦点，并且可以连接到焦点轴...

特征 岩石不倒翁模仿自然风化过程，将粗糙的岩石变成带有有趣颜色和图案的光滑光滑的石头。 初级地质学家见证了他们的日常摇滚发现转变为艺术品时，将了解岩石组成和地质过程。 岩石通过打磨/抛光的四个阶段转化 包括各种配件，以将最终的抛光石变成一双耳环，项链，钥匙链等。 描述 通过探索一个模...

延时摄影必不可少的 眼镜 连接到北极 2.5毫米立体声迷你插头 连接到相机 多/微型USB终端插头 螺旋电缆长度 约20厘米至50厘米 重量 26克 保修单 泼妇保证其产品在基于零件类型的指定期限内没有材料和工艺的初始缺陷： 泼妇电子零件：有限的一年保修 ...

描述 防水橡胶加热器。减少客观镜头或主镜上的夜露。 眼镜 长度 665mm 重量 320克 魔术胶带的长度 500mm 电缆长度 2.2m 反抗 16.2欧姆（12V，8.9W） 杰克 2.1（内部直径2.1毫米外部直径。5.5mm）中心 - 极性 电...

Description For mounting optical tubes onto SX, GP2 series mounts Fits the mount head of AXD or SXP directly. Fits New Atlux equatorial mount by u...

Description For DD-2 controller, Dew Heater 2, Color CCD Camera C0014-3M. Specs Dimensions 140x80x80mm Plug ID 2.1mm OD 5.5mm DC plug with cen...

Features Enhanced Vision Technology Unlock the secrets of Solar Activity Observe the Sun in less than 2 Minutes Safely Experience With Your Fami...

注意：所有探索科学太阳能设备均已评级 ISO12312-2 由千橡光学公司提供并获准用于直接观测太阳 7"-12" 直径的滤光片不适合 10 和 12 英寸的桁架管 Dobsonian 望远镜。 仙后座天文台评论 - 点击这里 特征 ISO 12312–2 额定； 100% 安全的 Ecl...

描述 Binoviewer是一款1.25英寸的设备，使用两个匹配的目镜通过望远镜为您提供了令人敬畏的两眼视图。因为我们的思想旨在用双眼睁开双眼看到世界，而两只眼睛都凝视着望远镜，所以景色要好得多。 Explore科学Binoviewer具有滑动的踢脚式距离调整，扭曲锁以保持目镜的安全安装以及...

This classic unisex jersey short sleeve tee fits like a well-loved favorite. Soft cotton and quality print make users fall in love with it over and...

This classic unisex jersey short sleeve tee fits like a well-loved favorite. Soft cotton and quality print make users fall in love with it over and...

Comfort Colors introduces the “Comfort Colors 1717” garment-dyed t-shirt; a fully customizable tee made 100% with ring-spun cotton. The soft-washed...

Features Light and small Easy to use Made to watch 2024's total solar eclipse Night Mode, Day Mode, and Scenery Mode Navigate the Cosmos with Gra...

The leather patch hats are made from 100% bio-washed chino twill. It's a very comfortable yet sturdy material that will last for ages. The 100% PU ...

Warm your soul with a nice cuppa out of this black ceramic mug. Customize with cool designs, photos, or logos to make that “aaahhh!” moment even b...

Want to get your message across? Great ideas deserve to be spread, and what easier way than using custom magnets anywhere where there is a metallic...

Custom circle stickers are great for adding a touch of personality to any surface. These are rated to last over six years due to high-quality produ...

Having your can cooler sleeve on means you can kick back and enjoy your canned beverage on your own terms - with no rush whatsoever. Rest is good t...

This is a hands-on guide for both the budding astronomer in need of a mentor and the seasoned observer who wants to learn how to effectively share ...

Description Keep out stray and unwanted light from your 20" Truss Tube Dobsonian telescope with a lightweight light shroud. Keeping the path dark ...

Features Lightweight tripod easily converts from tabletop to full-size model Mount design provides a secure fit for steady viewing during long ob...

Features Low magnification wide field of view Fully Multi-coated Made in Saitama Comes standard with a lightweight pouch with neck strap Descri...