G**********e
发帖数: 11693 | 1 求科普
我goo来一篇文章,连美国军队也用med-low的scopes？别告诉我你是这样认为的，我举个女人比较懂的例子，她说Gucci算名牌包里top of the line的，你说no，Gucci是med-low，Hermes Birkin才是top of the line。。。忘了这里一版的男人，再举个男人比较懂的例子吧，他说BMW是车里面top of the line的，你说no，Lamborghini, Ferrari, Rolls Royce, Bugatti才是top of the line。。。。那好吧。。。。我觉得这样的想法比较吹毛求疵～
Over the years as hunting has become such a popular sport and leisure
activity, there have been many names that claim to offer best value and best quality hunting optics and items for avid hunting enthusiasts. However, ... 阅读全帖 |
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X****r
发帖数: 3557 | 2 block 没有scope，只有global和function scope。所有全局变量和全局函数名在一个
global scope里，该scope处于scope chain的尾端。每开始定义一个函数就会把一个
scope放到scope chain顶端，该scope包含这个函数的所有参数，函数里所有用var定义
的变量，以及函数里定义的内部函数名。当函数定义结束时这个scope就会被取走。
with关键字也会把指定的表达式的值作为一个scope暂时加到scope chain顶端。引用一
个变量时解释器会沿当前scope chain从顶端开始搜索直到找到一个scope包含这个变量。 |
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f***a
发帖数: 1434 | 3 买了 savage 93R17 GLV, 是.17HMR的重管rifle，今天刚拿到。
之前已经买了Simmons Whitetail Classic Rifle Scope 6.5-20x 50mm 和Burris 1"
Signature Zee Weaver-Style Rings Matte High镜环。
今天安装的时候发现镜环还是低了，scope的物镜碰到枪管了，无法调节焦距。具体情
况见附图。
现在我有两个想法：
1、换成extra high的镜环，不过似乎extra high 的镜环不是很多。
2、把这个50mm物镜的scope退了，换别的。但是我之前已经把UPC撕下来寄出去做
rebate了，不知道还能不能退。
请问一下各位大能，还有没有别的解决办法？非常感谢。
+++++++++++++++++++++++++++++++++++++++
update:
刚刚打电话问了midwayusa的客服大妈，说即使做了rebate，没有UPC label也可以退。
现在开始找新的scope了，请大家参谋一下，多谢。我是穷人，只找了 on sale的scope。
Nikon P... 阅读全帖 |
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b***e
发帖数: 1419 | 4 What the fuck are you talking about? JS实现的是标准的lexical scope，也称
static scope:
http://en.wikipedia.org/wiki/Scope_(computer_science)
所有的functional language的scope implementation，凡从lisp那过继来的，都是这
种标准的lexical scope。例如Lisp/Clojure, OCaml, Haskell, etc。C/C++和Java回
避了scope的问题。Pascal是static scope，但是是阉割过的，没有对functional
closure的全支持。初版的ruby才是真正的对scope没想好，closure的实现有问题。
不懂得话可以问，甭他妈胡说八道。 |
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b***e
发帖数: 1419 | 5 C++ and Java don't allow nested function definitions, and thus does not
support variable scope at all. Yes, there are local scope definition like
in a for loop, but that's not the broad-sense definition/understanding of
variable scoping.
Closure if in fact not hard to understand, if you grab a good mind model. A
closure is the record that contains two fields:
1. code: a function pointer
2. scope: a heap object that maps variable names to pointers of further heap
objects.
When executing a closu... 阅读全帖 |
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f*********n
发帖数: 11154 | 6 突然发现了一个问题，LZ的Mosin上的scope mount怎么这么靠后？
今天在GB上转悠，看到另外一把Mosin, scope mount的位置和LZ这把一模一样，seller
在介绍中说，“scope mount will need some work to place it on the firearm
correctly, or you can shim the rings to make it straight”
http://www.gunbroker.com/Auction/ViewItem.aspx?Item=152192512
偶看到版上老刀那把和网上其他一些的scope mount都比较靠前，是不是这个scope
mount有问题？ |
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f********r
发帖数: 3155 | 7 转一个阅镜无数的大牛的评测，这个价位上最好的镜子是Vortex Diamondback
http://opticsthoughts.com/index.php/rifle-scopes/4-rifle-scope-
5th Place: Nikon ProStaff 3-9x40
I might get some flak for what I am about to say, but here it is anyway: I
do not get the reason behind this scope. I just can't figure out who I
would recommend it to. That is my litmus test: "will this scope be my
recommendation for any sort of situation?" With the ProStaff, the answer is
an emphatic "no". Optically, is pretty close to Elite 3200, exc... 阅读全帖 |
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M*******n
发帖数: 1165 | 9 拆stock时，没经验，弹夹一弹把枪管和scope那部分弹到地上，镜子幸好有盖子保护，
只是盖子裂了，跟scope ring的接触口错位1cm，磨了点白纹出来，今天打完拆了一擦
就擦掉了，看来是scope ring掉的屑，镜子的材料还挺耐磨。
我当时ring的螺丝拧得都听见声了，怕弄坏scope就没继续，应该很紧了 |
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e***s
发帖数: 1397 | 10 CZ455 has 11mm dovetail - not only the width is slightly different than the
common 3/8", more importantly, the angle is 60 not the 45 as most standard
American dovetails.
So what are you guys's scope setup? Just buy an 11mm dovetail base?
I am thinking about getting a 11mm-3/8" or 11mm-weaver adapter then mount
the scope base and ring onto the adapter - this way, I can keep my scope
setups universal - for future potential swapping around between different
rifles ... What do you guys think about ... 阅读全帖 |
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r*****y
发帖数: 204 | 11 cheap scope doesn't hold zero.
I had bought a couple cheap scopes when I knew nothing. Those were waste of
money, don't buy any scope less than $80, don't buy any scope not made by a
well known brand, ever. |
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w*******y
发帖数: 60932 | 13 Trijicon ACOG 1.5X16 Green Ring and Dot rifle scope - TA26SG-10. You can
also use coupon code TrijiconSuperSale for an additional $50 discount on
this scope or any other Trijicon ACOG scope. I just spent $800 on the same
scope from another retailer. Even googling around I couldn't find this for
less than $740 shipped.
Link:
http://grabagun.com/trijicon-acog-1-5x16-grn-rng-and-dot.html
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w*******y
发帖数: 60932 | 14 BARSKAColorado Waterproof Spotting ScopeBARSKAColorado Waterproof
Spotting Scope
Regular Price: $149.99
Sale Price: $49.99
Item: IK-713754
BARSKAColorado Waterproof Spotting Scope
Variable zoom magnification
Fold-down eyecups
O-ring-sealed construction and nitrogen purged
Rubber-armored body
20 - 60 x 60mm
The Colorado merges rugged durability with fully coated optics for bright,
crisp images and high-definition color contrast at higher powers compared to
other scopes in this price range. Lock o... 阅读全帖 |
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c*******l
发帖数: 146 | 15 Buy 1 Scope Classic or Outlast Mouthwash, 16.9 oz $2.99, sale price 6/28-7/4
Buy 1, Receive $2.00 Register Reward 6/28-7/4
Use 1x 75¢ OFF ONE Scope® Classic Rinse 473 ml or larger (excludes
trial/travel size)
Or 1x 75¢ OFF ONE Scope® Outlast Rinse 473 ml or larger (excludes
trial/travel size)
Pay $2.24, Receive $2.00 Register Reward
Final Price: $0.24 |
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A****r
发帖数: 2746 | 16 I am thinking about getting a scope for AR15. I do not have a big budget on
scope--already overspent on gun :( so big names like trijcon are not
possible for me. I am interested in the Loupold VXII 3-9X40, but I also
found that Ncstar scopes are much cheaper and have many features (in fact
sounds too good too be true). I read some discussions about it, there are
some good reviews, but also many people called it crap... Anyone used NCStar
? Could you share your experience? |
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L*******r
发帖数: 8961 | 17 打步枪可千万不能用Scope，尤其是高精度步枪。
这是一条不归路。用了Scope，你就很难再想用铁瞄了。
昨天给Ruger10/22加了个Scope，今天发现自己的水平进步了10倍。
莫名其妙地也成了神枪手了。这还怎么回去用铁瞄呢？ |
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L*******r
发帖数: 8961 | 18 说好了今天就打200多发，发现越打越不准，还以为擦枪兰过于认真
把枪管里的来福线给弄坏了呢。后来才发现是Scope居然松了。
靶场老板建议用LockTite处理一下螺钉再安装Scope。不知道用了
LockTite还能不能把Scope拆下来。有没有老兄用过？
谢谢了。 |
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M****o
发帖数: 13571 | 19 Most of Nikon’s scopes are made in the Philippines, and the Zeiss Conquest
scopes are manufactured in Germany. If money is no issue, Zeiss are
definitely one of the higher-quality scopes in the world. Very good
manufacturing, very good glass. If price is an issue, then Nikon may be the
way to go. Much more affordable than Zeiss, but very well made as well.
- answer from my friend |
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k*******n
发帖数: 5546 | 20
结构搞得太复杂会不会容易出毛病？其实变倍应该也可以手指电子信号控制吧，只是可
靠性肯定不如机械，用手扳一下最可靠。
现在这种Scope Lever已经比较普遍了，人机也改进了，用习惯了很快，不增加重量。
可是目前的镜子1x和高倍的位置，对右手射手，用左手快速扳动这个lever还不那么顺
手。
如果哪个镜子把1x和4x放在下图的位置，平时一直放在1x,需要4x的时候左手快速一压
，1秒钟就能实现。其实左手压的力气不会小，使劲儿的方向顺手很重要，行程长短反而
不会太影响速度。 Scope Lever在4x的位置可能会影响拉charging handle,不过
有个BCM中号也就行了。甚至Scope Lever头上拴一根长短合适的粗鞋带，左手拉一下。
在此基础上再加上45度觇孔小铁瞄，耐摔不用电池，铁瞄用好了近战速度可以非常快
，而且近距离铁瞄对光线要求也不那么高。当然前提是士兵右侧45度一线不能挂其他战
术附件，遮挡铁瞄的瞄准线。 |
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S**********s
发帖数: 4534 | 21 Yessir. A test was done and posted on some forum that I don't remember to
show that none of the scopes that were labeled 1-4x has a true 1x.
As far as I know only the valdada ior pitbull 1x/4x is a "variable" powered
scope with a true 1x. I don't know how exactly they achieved that, probably
using different sets of lens ? That might explain why the scope weighed so
much. |
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s****r
发帖数: 326 | 22 I am using this scope now. It is ok.
It is a range scope, rather than tactical scope.
It can hold zero every well, but heavy.
The design of turf is super stupid.
You can find this one as $99 in cabelas now. |
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l*u
发帖数: 9 | 23 Can anybody give me the answer for the following question? Thanks.
1. How do you check if a object is out of scope?
2. How do you clean unreference object when you are out of object scope?
3. Is finalize() the last one function was called before you are out of object
scope. |
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t*******e
发帖数: 684 | 24 You need long living scopes other than request, as suggested by those
responses. You will get view scope in JSF2, and flow scope with Spring Web
Flow or SEAM page flow. |
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N*********r
发帖数: 40 | 25 this is not really the question of scope -- the maxium scope is file scope,
but the question of linkage. Both `n's are of external linkage, so they
are the same variable. |
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p*****w
发帖数: 429 | 26 js其实没有block scope，只有global和function scope. 另外一个概念是hoisting，
理解这2个就理解了js access scope的概念。 |
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g****t
发帖数: 31659 | 27 我记得静态scope的意思是不由程序的当时状态决定scope
似乎和函数编程与否没有直接关系
不一定对
: 这叫lexical scoping
: 其原则就是在这层堆栈如果找不到需要调用的变量，就自动会在它外层去找。
: 这是对象式编程的基本功能，如果你对此诧异，是你从来只进行函数式编程。
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U******u
发帖数: 5829 | 29 my shooting club selling one:
new AR15 w/ 4x scope only $799 made by Century.
sounds too good to be true ah!~
I saw Impact or other place, all >$950-1200 w/o scope.
cann't believe it. |
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p***e
发帖数: 29053 | 30 1943年的mosin，已经给改的面目全非了 $150
问个scope问题
发现打的比瞄的有点偏右上，scope水平和高低的调节都调到了顺时针尽头
所以不能调低了，是不是啊？
还有调水平的那个好像没有什么用，扭几下竟然可以扭松
谢谢 |
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L*******r
发帖数: 8961 | 31 I saw some scopes cost only $29 or even less. Are those acceptable?
What are the disadvantages of the cheap scopes? Is there a reason why I need
to go for some more expensive ones?
Thanks ... |
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b******e
发帖数: 1861 | 33 请问需要买scope厂家的ring还是可以买杂牌的（utg, leapers, etc)。买1 inch还是
30mm的。我看很多ring都说是weaver rail的，可我的rail是picatinny的，这两个通用
是么？谢谢。
配置：
ar15 flattop with fixed front and rear sight. flat top上装了个utg riser see
through mount with picatinny rail.scope is burris fullfield II 3-9*40mm. |
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b******e
发帖数: 1861 | 34 高镜环能see through用铁瞄么？还有这个ring的低中高是通过镜子的什么参数来决定
的？我的scope的Objective Bell Diameter: 46mm,这个应该是指镜子前端的直径吧，
如果镜身的直径是1 inch。那我是不是要选环高至少在46mm=1.81102362 inch-1 inch/
2= 0.405 inch以上的环，这样一来就只有高环(.450" )或者超高环才可以了，我这样
算对不对？
Ring Height: .450" (measured from base of ring to bottom of scope tube) |
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p***e
发帖数: 29053 | 36 plan to have one on my new AK-74
red dot 2x scope, good or not, any other recommendations?
or just buy a normal 4x scope |
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A****r
发帖数: 2746 | 38 恭喜。那个弹匣怎么回事，没插进枪里去？
买枪时考虑scope是很重要的。我的一个朋友想进一支AKtype的枪，考虑良久，做了N多
的research,从网上买了一只VZ58，装了个4倍的的瞄.结果VZ58的抛壳窗巨大，机匣的
上面的大部分都开了，装蛋时倒是方便，可以打开抛壳窗口直接用clip向弹匣内鸭蛋。
但是，抛壳太向上，弹壳打在瞄准镜上弹回去导致很多jam，现在只好搞了个红点在那
里玩，老兄眼神还不太好，只能打50米左右。所以你老兄的选择，甚为明智呀，甚为明智
。要买scope friendly 的枪。 |
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L*******r
发帖数: 8961 | 39 打Scoped步枪眼睛的注意力应该是哪里？
用铁瞄眼睛应该集中在准星上，如果用Scope，
眼力是集中在十字上还是目标上？ |
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f**s
发帖数: 2225 | 40 如果scope不调，刻度就在原中心的话
40mm口径scope贴近枪管，base 20MOA向下倾，本身的zero大概在多少米？ |
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f*********n
发帖数: 11154 | 42 http://www.midwayusa.com/viewProduct/?productNumber=746570
Simmons Whitetail Classic Rifle Scope 6.5-20x 50mm.
Whitetail Classic Rifle Scope Features:
1/4 MOA windage and elevation adjustments
Fully multi-coated camera-quality lenses
Waterproof, fogproof, shockproof
Limited lifetime factory warranty
Technical Information
Tube Diameter: 1"
Objective (front) Diameter: 63.5mm (2.50")
Ocular (rear) Diameter: 41.9mm (1.65")
Adjustable Objective: Yes
Adjustment Click Value: 1/4 minute of angle
Eye Rel... 阅读全帖 |
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G**********e
发帖数: 11693 | 44 ok，谢谢提醒
我已经给tijicon客服打电话（只有voice mail）留言和发email问了我这个serial
number的scope production date是什么时候。我在盒子里没有找到production date。
那这个半衰期有多少年呢，我估计应该有许多年吧，动不动就将近1000块钱的东西，又
是top of the line product，不可能几年就玩完了吧。那如果掉价能掉成什么样子呢？
我知道的是这个scope是今年2010年，4月从distributor那里拿到的。
我没用过paypal，准备找到买家后交给我老公去结束交易。如果用paypal的话，是不是
给gift money的就话没有transaction fee,但买方就也没有保障啊？ |
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j***n
发帖数: 3786 | 45 trijicon is not high end scope... mid-low only
只是trijicon是最高端的scope所 |
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G**********e
发帖数: 11693 | 46 It's 1/1/11 12:30 pm and my scope is sold for $700 at The Original Gun Show
in Fort Worth to a very poor and dirty looking Vietnamese guy. thanks for
all of yall's interest and enthusiasm, and thanks fedora for willing to
advertise it for me, I got the pictures taken already but the scope is gone
before I could get them to you. 2011 has begun on a good note, good luck
for me. I'm happy now~~~~~ |
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M*******n
发帖数: 1165 | 47 隔了一周，实在忍不住了今天第二次去打靶。
上次打完拆枪清理时镜子撞了一下位移了1cm，以为要重新校下镜子，结果没怎么调整。
靶场依然只允许坐位式，上次太兴奋了没怎么研究体位，这次特地留意了下左手，想右
手扣，左手也应该放在什么地方才对。
看看枪托上虽然也没有几个地方可以放左手，不过还是勉强找了几个点，先是左手放桌
子上什么都不摸打了两组，然后左手轻抚脖颈处一组，再放酥胸处一组，最后放在pp上
打得比较满意，感觉很好，基本决定稳定地练习这种体位了。
基本都是粗糙的5MOA左右，自我安慰100yard打野猪够了够了...最后rp爆发了一次，3
发非常近，被边上的白人小胖嘲弄factory load打出这种结果是非常消耗rp的，然后开
始教育我应该用hand load，还说可以教我怎么load，我只好解释家里小有孩子没有工
作室，老婆不同意blabla，白人小胖拍拍我说道man, I feel pity for your rifle.
还想着再接再历再爆发一组，谁知几发全部各方向飞出5-6inch远，一看scope mount完
全松了。
scope mount是marlin原厂的one p... 阅读全帖 |
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A*****i
发帖数: 465 | 48 Scope 可绝对是个大头，我个人预算一般是枪价的1/3-1/2，你这个SGL怎么也配个300$
+吧。。。反正Scope保值，可以换着枪用，出点血咯。。。 |
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s********y
发帖数: 769 | 49 想买个3-9 倍的scope
上网搜过后惊讶中发现看似同样的东东价格竟然相差非常之巨。
能否请哪位有知识的大师科普一下rifle scope里的学问和猫腻啊？
谢谢先了 |
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