I purchased this loupe to inspect t

I purchased this loupe to inspect the cutting edges on my knives during sharpening.

Pros:
- Good glass. Abberations are minimal, image is clean, colors are reasonable.
- Excellent magnification. I can easily see the honing scratches left by a 1000 grit sharpening stone. In the right light, I can see the actual cutting edge of the knife
- Has some heft. Doesn't feel light or cheap in the hand.
- Mine came with a complimentary neck strap from Magnifyingaids.com, apparently because of the retailer--Magnifying Aids--I purchased through.

Cons:
- Depth of field is extremely small...about 2 millimeters. Even on a shallow knife edge bevel, the top and bottom of the bevel are not in focus at the same time.
- Focusing distance is very small. The loupe needs to be within about 1/4" to 1/8" of the subject for correct focus. This has the disadvantage of blocking nearly all light to the subject (because the loupe and my big nugget are blocking the light). Note: I use a loupe by placing it as close to my eye as possible and then bringing the subject to the loupe. Viewing subjects requires a very strong light source positioned in such a way that light will get past one's head and the loupe.
- Details and instructions insert does not have an English language section.

Final thoughts. If you're purchasing a loupe for the first time, buy a 10x loupe. If it doesn't fit your magnification needs, then think about getting a 20x loupe. I'll keep this one but will continue to look for a 20x loupe that is either self-illuminating or has a greater depth of field and focusing distance.
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結果 (中文) 1:

我购买这个放大镜锐化在查阅我的刀切削刃。优点:-好的玻璃。象差很小，图像是干净的颜色是合理的。-优秀的放大倍数。我很容易可以看到由磨刀之石 1000年砂砾留下的珩磨划痕。在正确的灯光，我可以看到实际的切削刃的刀-有一些分量。不觉得光或廉价手中。-我附带免费颈带从 Magnifyingaids.com 人，显然是因为零售商 — — 放大的艾滋病 — — 都是通过而购买。缺点:-...景深是极小约 2 毫米。甚至对浅刀边缘斜面，顶部和底部的斜角并非在焦点在同一时间。-对焦距离是非常小的。放大镜需要内约 1/4"到 1/8 英寸的正确的焦点话题。这样做的弊端的阻塞问题几乎所有的光 (因为放大镜和我大金块挡住光线)。注意: 我使用放大镜放置尽可能接近我的眼睛，和然后带入放大镜的主题。查看科目需要很强的光源定位在这种情况下光会过去一个人的头和放大镜。-细节和插入没有英语节的说明。Final thoughts. If you're purchasing a loupe for the first time, buy a 10x loupe. If it doesn't fit your magnification needs, then think about getting a 20x loupe. I'll keep this one but will continue to look for a 20x loupe that is either self-illuminating or has a greater depth of field and focusing distance.2 Comments Was this review helpful to you?YesNoReport abuse

結果 (中文) 3:

我买这个放大镜来检查我的刀在切边的锐化。

优点：
好玻璃。象差是最小的，像是干净的，颜色是合理的。
优异的倍率。我可以很容易地看到，用1000个磨粒磨石头留下的划痕。在合适的光线，我可以看到刀
-实际切削刃有分量。不觉得轻或便宜的手。我是从magnifyingaids.com免费的颈带，显然是因为零售商——放大工具——我通过购买。

缺点：
-景深非常小……约2毫米。即使在浅刀边的斜面上，斜面的顶部和底部都是不同时的。放大镜需要在大约1 / 4“1 / 8”的主体正确的焦点。这就有阻断几乎所有的光对主体的缺点（因为放大镜和我的大金块是挡住光线）。注：我用放大镜把它接近我的眼睛，然后尽可能将受制于放大镜。观看者需要定位在这样一种方式，光会过去一个人的头和放大镜很强的光源。
细节和指示插入没有英语语言部分。

最后的想法。如果你是第一次购买一个放大镜，买一个10X放大镜。如果它不适合你的放大需求，然后考虑一下20倍放大镜。我会记住这一但将继续寻找一个20倍的放大镜，是自发光或有更大的景深和焦距。
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