Farpoint Bahtinov Mask 5.5 - 8.5 Inch - The Binocular and Telescope Shop

Farpoint Bahtinov 面罩 5.5 - 8.5 英寸

SKU: FP402
Barcode: 65772613

$59.00

In stock

Delivered to anywhere is Australia and New Zealand.
Orders placed before 2 PM are usually shipped the same day.
Farpoint Bahtinov 面罩 5.5 - 8.5 英寸

$59.00

$59.00

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Same day shipping

If you order before 2pm we will ship your items same day.
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Expert aftersales support

We fully support our products!
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Minimum 2-Year Warranty. 

+ extended manufacturer warranties
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Aussie Owned & Stocked

Our store is Australian owned and stocked.

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Farpoint Bahtinov 遮罩 - 5.5 英寸至 8.5 英寸望远镜是一种轻松调焦望远镜的巧妙新方法。俄罗斯业余望远镜制造者和天文学家 Pavel Bahtinov 创造了这种简单、非常直观的方法，该设备普遍以他的名字命名：Bahtinov 遮罩。

可调节 Bahtinov 调焦罩，适用于带防露罩或前端直径为 5.5 英寸至 8.5 英寸的望远镜。

将相机安装到望远镜上，将一颗相当明亮的星星置于中心并粗略对焦。然后将遮光罩“悬挂”在前防露罩的塑料螺丝上，置于望远镜的前孔上。进行短暂曝光。星星的图像将显示衍射尖峰。“中心”设置很可能会向一侧或另一侧移动。这显示了失焦。

调整望远镜的焦距并重新曝光恒星，再次显示衍射尖峰图案。重复该过程，直到中心衍射尖峰与恒星和其他尖峰居中。当实现对称图案时，即可达到最佳焦距。只需取下遮罩，将目标物体置于中心，即可拍摄出令人惊叹的清晰图像！

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