G********d 发帖数: 10250 | 1 http://photo.net/nikon-camera-forum/00SnkM
Also, remember that Nikon labels their eyepiece diopter lenses as the
combined power of the eyepiece diopter lens and the viewfinder power (-1
diopter). So a "0" diopter eyepiece is actually +1 power and a +1 diopter
eyepiece is actually a +2 diopter power. The standard eyepiece has no power
so effectively the actual power through the viewfinder is -1 power.
MY GLASSES ARE OF -2D, AND I WANT TO USE CAMERA WITHOUT GLASS, WHICH SHALL I
BUY? -2D OR -3D? |
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G********d 发帖数: 10250 | 2 我只需要最普通的diopter lens 不要太厚 加工成需要的形状 就可以DIY出一个
diopter给hexar rf了
现在找到f3的dipter lens 大小适合 可惜我没法把边框卸下来 正在冷冻希望能够卸
下来 |
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T*******t 发帖数: 9274 | 4 用ebucks买了个 nikon fm3a的 -2.0 diopter...
给R3A装上以后,爽呆了....跟Leica差不多crispy了
这个-2的diopter装在R3A只相当于-1的纠正...因为
一般相机的VF都自带-1的纠正 |
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s*****g 发帖数: 5159 | 5 【 以下文字转载自 PhotoGear 讨论区 】
发信人: smugmug (摄影—记录生活中的点点滴滴), 信区: PhotoGear
标 题: xpan的diopter有用吗?
发信站: BBS 未名空间站 (Wed Jun 16 11:59:32 2010, 美东)
500度近视,带眼镜,xpan取景框里的快门看着恍恍惚惚的,考虑配个-4的diopter(
最深的了,矫正到375度),这玩艺儿56块钱,不便宜,不知道是不是物有所值。
带眼睛的xpan用户说说看? |
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s*****g 发帖数: 5159 | 6 500度近视,带眼镜,xpan取景框里的快门看着恍恍惚惚的,考虑配个-4的diopter(
最深的了,矫正到375度),这玩艺儿56块钱,不便宜,不知道是不是物有所值。
带眼睛的xpan用户说说看? |
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G********d 发帖数: 10250 | 7 要去修机器?
把机器送去装作维修 然后买diopter |
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w*******y 发帖数: 60932 | 8 I know there's been some recent posts on the 556, but this is the model I've
been watching @ topgunsupply for $1124, which until Bud's dropped their
price, was by far the cheapest price out there. What makes it a good value
is that it comes standard with the mini red dot (MR in the model number) and
the rotary diopter sight (RD), together valued at just under $500, and not
included on the other recent models offered at this price.
Link:
http://www.budsgunshop.com/catalog/product_info.php?product... 阅读全帖 |
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w*******y 发帖数: 60932 | 9 Link:
http://www.swimoutlet.com/product_p/22598.htm
I started wearing glasses recently so decided to get some prescription
goggles for swimming this year. Found Link:
http://www.swimoutlet.com/product_p/22598.htm
for a nice price. Actually the price was so low it had be worried about
the quality, but they are really nice. Comes with a set of different nose
bridges. Shipping is around 6 bucks.
Finding out what Diopter you need can be tricky. I got glasses recently
enough where I still had my in... 阅读全帖 |
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k**********4 发帖数: 16092 | 10 最常见的两种保险就是 HMO 和 PPO;前者必须先选择一位主要保健医师(Primary
Care Physician, PCP),若要看专科医师必须由 PCP 推荐转诊(referral);而 PPO
计划则不需透过家庭医师,可以直接预约专科医生。
比较项目 按服务收费(FFS) 健康维护组织(HMO) 优选医疗机构(PPO) 指
定医疗服务(EPO) 定点服务组织(POS)
医院选择自由度 可以选择任何医院 只能在特定的医疗服务网内就医 比HMO
高 只能在特定的医疗服务网内就医 有特定的医疗服务网,网外就医需承担较高
的自付款
医师选择自由度 可以选任何医师 PCP或由其转诊的专科医师 不需转诊即可
看专科医生 不需转诊即可看专科医生 PCP或由其转诊的专科医师;网络外专科
医生处就诊需承担较高自付额
自费比例 通常为20%,与其他相似 较低 网络内较低 较低 网络内较低
保险费用 较为昂贵 较为便宜 比HMO高 较为便宜 较为便宜... 阅读全帖 |
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D****e 发帖数: 1122 | 11 899 加元,这个价格不知道赤壁带够的人如何想
http://www.sonyalpharumors.com/sr5-rx100miii-priced-at-899-cana
摘要:
Optical Zoom : 2.9x (Optical Zoom during movie recording)
Lens Type : Carl Zeiss® Vario-Sonnar T*
Aperture (Max.) : F1.8(W)-2.8(T)
Viewfinder
Type : 0.39″ SVGA electronic viewfinder(OLED), 1,440,000dots
Magnification : Approx. 0.59x with 50mm lens at infinity, -1m1(diopter) (
35mm equiv.)
---------
完整
Software
Operating System Compatibility : PlayMemories Home: Windows® XP SP3,
Windows Vista... 阅读全帖 |
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A****y 发帖数: 335 | 12 在这个帖子的第5页还可以看。我把内容复制过来了。
图片点击可在新窗口打开查看
分享一个超划算的deal,网上眼镜商城coastal.com推出的免费眼镜活动:使用优惠码
firstpairfree,可以免去$150+的眼镜费用,只收取$9.99运费+$9.99人工费。另外还
可以使用ebates返现8刀,最终花费只有11刀。每个人仅限使用一次。价格虽然超低,
但寄来的眼镜质量非常之好,跟楼主之前800rmb的眼镜完全没差别。所以楼主现在对
coastal这个公司特别有好感……
这个deal其实去年就有过,今年4月份停了一段时间,现在又活了。虽然coastal这次没
说截止期限,但他们推这个deal显然是赔本的,未来可能还会撤掉。所以趁这个deal还
在,买一副当备用眼镜也好,毕竟是个可遇不可求的好deal。
北美省钱快报也多次推荐过这个deal,但是用他们的链接拿不到cashback。下面楼主详
细讲解一下拿cashback的购物流程,供大家参考。
1. 进入coastal
首先进入http://www.ebates.com
在eb... 阅读全帖 |
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p******K 发帖数: 277 | 13 amazon上有,optical goggle
http://www.amazon.com/Speedo-Vanquisher-Optical-Goggle-Smoke/dp/B001HBHVVC/ref=sr_1_4?ie=UTF8&s=sporting-goods&qid=1257178483&sr=8-4
* Diopters -1.5, -2.0, -2.5, -3.0, -3.5, -4.0, -4.5, -5.0, -5.5, -6.0, -7.0,
-8.0.
Product Description
This is the perfect goggle for the swimmer who needs a little help seeing
more clearly. It is as simple as buying a pair of reading glasses, just buy
the diopter you need. This has the same perforamance fit as the regular
vanquisher.
类似的还有几 |
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c*****r 发帖数: 2608 | 14 from wiki:
a five-year longitudinal study currently underway in the Greater Chicago
area – show a statistically significant difference for children in the
treatment group wearing orthokeratology lenses who exhibited no overall
prescription change against children in the control group wearing
conventional soft contact lenses for whom there was a mean increase in
myopia of 0.40 diopters.[6]
"significant difference" not "significant improvement"
0.40 diopters = 40 度 |
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T*******t 发帖数: 9274 | 15 【 以下文字转载自 Rangefinder 俱乐部 】
发信人: Taikonaut (小潘|香闺), 信区: Rangefinder
标 题: Bessa R3A的取景器没有Leica M4的看得清楚
发信站: BBS 未名空间站 (Fri Oct 29 13:14:07 2010, 美东)
据说是因为Bessa R自带的diopter是0 (平光镜)
一般照相机的VF都是-1....我是不是要去给我的Bessa R3A买个
diopter? |
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G********d 发帖数: 10250 | 16 需要把一块diopter玻璃粘到金属上(hexar rf的viewfinder边缘上)
但是不是永恒固定 可能几年以后要卖掉的时候要取下来
希望找一种胶水能够把玻璃粘到金属上 但是通过某种方法(可能是化学的)可以溶解
下来
diopter的玻璃不值钱(我的成本是20)
希望对hexar rf的破坏尽量少 |
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w*******y 发帖数: 60932 | 17 Link:
http://www.frys.com/product/5975474
Control
* AF modes : Single-shot AF, Automatic AF, Continuous AF, (AF/MF selectable)
* Drive Mode : Single-shot, Continuous, Self-timer, Bracketong; Cont./ WB,
Remote Commander
* Exposure Compensation : ?2EV (in 1/3 EV steps)
* Exposure settings : Auto, Auto Flash Off, Program Auto (P), Aperture
priority (A), Shutter priority (S), Manual (M)
* Focus Area : Wide (Up to 9 active focus points), Spot, Local (9 local
areas selectable)
* Focus Features : Manua... 阅读全帖 |
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T*******t 发帖数: 9274 | 18 据说是因为Bessa R自带的diopter是0 (平光镜)
一般照相机的VF都是-1....我是不是要去给我的Bessa R3A买个
diopter? |
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i*********d 发帖数: 2739 | 19 要带回去给老人用的
老花镜是不是叫做presbyopic lens?
200度是不是可以用2 diopter来表示?
谢谢! |
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b****y 发帖数: 103 | 22 20/80 seems to be right with -1.5 diopter; 20/150 is quite off. You
definately need to bring your kid to a good optometrist to get eye checked.
If not corrected well, the brain may suppress the weak eye and eventually
lead to zero stereopsis (3D vision capability). Overall , fitting kids
vision at young age is tricky, you need to get to a very experienced and
very patient optometrist. Good luck! l |
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l*********e 发帖数: 7492 | 23 不好。
上这个:
Features
ED Glass
Open Hinge Roof System
BAK4 Prism
Center Focus, Center Diopter
FMC, Phase Coating
Water Repellent Coater
Magnesium Body
http://www.adorama.com/PRO842.html
绝对超值。 |
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h*********r 发帖数: 1943 | 25 http://www.hk-usa.com/civilian_products/mr556_general.asp
“The MR556A1 rifle is priced at $3,295 (includes rifle, HK 30-round steel
magazine, set of HK diopter sights, HK multi-tool, lock, and case)”
Hk416的民用版叫MR556,就AR而言是一支做工非常上乘的东西,堪比挪威司机和Larue
之类的高端AR厂出来的任何产品。想买的话准备个三千块钱就是了
再学习SOCOM的特种部队装备,至少多花一两千准备卡宾瞄具,比如Trijicon的ACOG或
者SRS;Aimpoint的CompM4和放大镜,Elcan的1-4瞄;EOTech的全息和放大镜;还有德
国玻璃钛合金桶ACOG的BCO
再加上各种配件,至少五六千块钱砸下去,你也可以拥有Hk416 |
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p******n 发帖数: 66 | 26 请问Diopters 和在国内配眼镜的度数是什么关系呀?
还有size 一般都选多大呀?
谢谢。 |
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p******K 发帖数: 277 | 27 100度就是diopters -1....
size建议买小一点的,适合亚洲人脸型 |
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s*****n 发帖数: 10890 | 30 【 以下文字转载自 PhotoGear 讨论区 】
发信人: shopfan (shopfan), 信区: PhotoGear
标 题: 【求指导】入了mamiya rz67, 有几个问题想请教大牛们
发信站: BBS 未名空间站 (Sun Jul 28 11:18:23 2013, 美东)
长话短说。。。
1. 我这个机器里的对焦屏不是裂像。。。。对焦不爽。请问有推荐的对焦屏吗(如果
比裂像更好的话)?镜头是127mm.我目前肯定主要用来拍肖像
2. 没有strap,求推荐。我可能会再买个waist level finder。机器自带的就是普通的
prism finder。想手持拍绝对mission impossible...
3. prism finder 有对应的diopter吗?我似乎只查到WLF有。
目前对焦很没谱啊,感觉是对上了,但总是不确定是不是对的最准的。 |
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k****t 发帖数: 12697 | 31 看大图有嘈声, 或者是俺的MONITOR 灰太多了?
并非B+W 就好,IT 的CLOSEUP很烂, SINGLET, 单层膜, 比500D, NIKON 5T 6T, MINOLTA
早期的CLOSEUP差多了, 当然价格也底, 500D 要$150 还不如直接买个52BB
5X 是啥? 放大率跟MASTER LENS FL 有关, 一般用DIOPTER 表示, +1,+2,+3.. |
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k****t 发帖数: 12697 | 32 完全看光学结构设计. 一个+2 的DIOPTER, F=500MM, 就5MM 厚. ACHROMATIC 的
DOUBLET, 就10MM 厚. TRIPLET 的COOKE 也就10来MM, 中大幅的TESSAR也就几里米. 一
复杂就厚了, DISTAGON 21 牛鼻子冲出很长, 镜片少的长焦可以很薄 |
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l***a 发帖数: 12410 | 34 eye point is not high enough? |
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s*****g 发帖数: 5159 | 35 好像不是,带眼睛的人近距离是不用带眼睛的,带了眼镜就有问题,所以取景框里的显
示需要校正过来。 |
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s*****g 发帖数: 5159 | 36 Calling tyning and shadowleaves. |
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b*****e 发帖数: 14299 | 37 还是不理解。DSLR都有矫正器,反正我戴了眼镜就把矫正器放到0正好,不戴眼镜就得
调节。难道两者不一样?
我原来的TX-1上面自带的是-2的矫正器,反正我装上去拆下去都觉得差不多。 |
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m*****n 发帖数: 5611 | 38 今天收到了GF670用的diopter(nikon 19mm接口,二手的很便宜),终于可以认真比较各
个机器的取景器。总的来说,GF670反差很好,框线细而明亮,完全不比Leica和Mamiya
的差,也没有眩光问题。
各个机器比较:
对焦精度:Leica完胜,高倍率+大基线长度。GF670与Mamiya 6/7相当。
框线舒适度:Mamiya 6和GF670完胜,都是实线,亮度也高。和Mamiya 6的大粗框相比
,GF670的线要细很多,但是亮度也更高,整体观感类似,但是GF670感觉更为精致。
Mamiya 7的大虚线框看着就不那么舒服了。Leica的线框感觉也不那么明亮。
框线精确度:GF670完胜,由于是固定镜头,框线设计成可伸缩调整,看到调整幅度以
后就会大吃一惊,原来Leica那个框框是那么的不精确。。其它机器由于是可换镜头设
计,估计没法设计成这样。
总结:
Leica的高倍率高精度取景器不可取代
GF670是Mamiya6/7标头杀手 |
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s*****g 发帖数: 5159 | 39 I have no hint on this - there are viewfinders that run through a narrow
canal and then reach your eyes. If I remember correctly, pentax 645n is
such a thing.
The viewfinder factor are intuitively decided by frame size, the distant
the rays will travel from the mirror to the prism and from the prism to
the diopter.
A simple decision is that if you want seem something with your eyes, go
binocular or monocular, use telephone lenses only if you want to take
pictures.
因素 |
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T*******t 发帖数: 9274 | 41 ai...我问的是VF的diopter纠正的问题.... |
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G********d 发帖数: 10250 | 42 好像买不到啊
xpan I代
-1 -2 -3 都行 |
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G********d 发帖数: 10250 | 44 看清楚 no longer available... |
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G********d 发帖数: 10250 | 45 I 和 II 不同用吧
你看bh上的说明。。。 |
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T*******t 发帖数: 9274 | 49 用ebucks买了个奶康-2.0 diopter给Bessa R3A用,爽歪了,奶康V5...
玩摄影器材也有几个年头了,今天终于入了奶,内牛满面啊。 |
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T*******t 发帖数: 9274 | 50 调准之后主要还是要上火漆把位置固定住
否则过一阵子又跑了
R3A的取景器要上个nikon的-2 or -3的diopter才爽.
R3A我现在用得很爽...
手感差,我给它加了个luigi的case... |
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