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全部话题 - 话题: eyepiece
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s********y
发帖数: 769
1
在rimfirecentral上也posted了一个帖子,有人建议用手把着eyepiece一起转。
一试果然很灵。现在松紧合适了
y***n
发帖数: 2318
a*******e
发帖数: 3021
3
愣是没看懂这是要干啥,为啥要捂上eyepiece
s*****n
发帖数: 10890
G********d
发帖数: 10250
5
来自主题: PhotoGear版 - got confused by Nikon diopter choice
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?
s****r
发帖数: 31686
6
来自主题: GunsAndGears版 - 终于买到NF的镜子了,求mount推荐。
By wiki, I believe it is very important.Also when it is much easier to see
on low mag than higher mag, at the two situations, only exit pupil are
drastically different
QUota from wiki:
To use an optical instrument, the entrance pupil of the viewer's eye must be
aligned with and be of similar size to the instrument's exit pupil. This
properly couples the optical system to the eye and avoids vignetting. (The
entrance pupil of the eye is the image of the anatomical pupil as seen
through the cornea... 阅读全帖
C*******r
发帖数: 10345
7
上次Hetzer推荐了Pentax,恰好adorama最近降价,俺就觉得进一个试试
http://www.adorama.com/PXSS65ED2.html
只买了body,因为Pentax可以用天文望远镜的eyepiece,俺恰好有个Orion的 Epic 2
ed eyepiece,决定试试看。
http://www.telescope.com/Accessories/Sale-Accessories/Sale-Tele
就用这个eyepiece,相当于26X固定倍率的scope,去rifle club观了一通。效果还是很
不错的,200码.223的弹洞(普通黑色靶)可以轻而易举的看见。
Pentax这个让用别家的eyepiece,确实是经济的选择。
x****k
发帖数: 661
8

- 因为这个spotting scope的design本来就和一类望远镜是一样的。一共三种,你可以
看这个:https://www.youtube.com/watch?v=sAzhOSbxMiI
你娃要玩的话你也可以一起研究研究~其实我上面说的已经很不折腾了,不同eyepiece
对应不同放大倍数。买一个短焦距的eyepiece for high magnification,换一个
finder scope和diagonal。
如果直接比较的话,你可以看看那个astromaster 114eq的specs,17lbs。。。C90+
photo tripod < 8 lb。你用一段时间就知道了,越轻越好。重的严重打击积极性。这
和你的observation site也有关,如果住在dark site附近,后院就能看星星的话,我
会考虑买个大一点的。否则的话越小越好(作为第一个telescope)。
你说的这个搭配的eyepiece也只放大100倍,我觉得是我的话我还是会考虑配个能到高
倍的eyepiece。114口径对应200x。这个配套的finderscope是像瞄准镜那种,如果在
... 阅读全帖
x****k
发帖数: 661
9
你说的有几个问题,我一个个写,你看看make sense不。
你可以估算一下一些参数。
搭配的32mm对应1250/32=39倍放大。月亮本身视角是30”,也就是0.5°,放大39倍的
时候大概20°视角。然后那个eyepiece的apparent viewing angle是50°,所以整个月
亮也不会填满整个eyepiece view的。
8-9mm的eyepiece才能放大到看具体细节。不过一般看整个月亮的话40倍也不差了。
看月亮就是要在月缺的时候看明暗交界的地方的阴影变化,满月也可以,不过整个月亮
都很亮,contrast反而不足,细节而不明显。
在保证对焦没问题的基础上。你说的不清楚有很多可能得原因,一个是seeing,大气扰
动导致——就像你大热天看到马路上冒热气。一个可能是那个diagonal,你可以试着直
接把diagonal拿掉,直接把eyepiece接上——我的经验是这样一般好很多。
x******a
发帖数: 6336
10
来自主题: History版 - 中国科技落后于西方的原因
In 1611, Johannes Kepler described how a telescope could be made with a
convex objective lens and a convex eyepiece lens and by 1655 astronomers
such as Christiaan Huygens were building powerful but unwieldy Keplerian
telescopes with compound eyepieces. Hans Lippershey is the earliest person
documented to have applied for a patent for the device.[1]
Isaac Newton is credited with building the first "practical" reflector in
1668[citation needed] with a design that incorporated a small flat diagona... 阅读全帖
l******8
发帖数: 9475
11
20-60x Zoom Eyepiece
Nikon announced two new EDG fieldscopes with VR technology (world’s first).
They can be attached to a DSLR with an adapter - see this guest post for
more info.
Key features:
The world’s first fieldscopes featuring Nikon’s lens-shift type VR (
Vibration Reduction) system (as of October 2011)
It reduces vibrations to approximately 1/8*2 during observation,
providing the equivalent of a shutter speed approximately two stops*2 faster
in digiscoping
Easy VR operation;... 阅读全帖
x****k
发帖数: 661
12
有的。我用的是celestron C90 mak,150刀。比较轻便了,一般摄影三脚架就可以了~
这个望远镜附带的32mm eyepiece (39倍放大)能用,因为这个scope f13,不太挑
eyepiece。可以再买一个8-9mm eyepiece用来看行星(大概~140倍放大),也不用买顶
级的,50刀左右就行了。
另外这个望远镜还附带一个finder scope,烂得掉渣。另外45度的diagonal有两个问题
,一个是画质受影响,另一个是这个角度比较适合观鸟,观星还是90度好,要不然姿势
不舒服。
这两个配件一开始能用一用,有时间在cloudynights classified上淘一个二手就行。
因为这个是reflector,所以没有CA。月亮是很好的观测对象。星星的话我能清楚看到
Jupiter四个月亮,还有两条显著的bands。在dark site可以清楚看到M42的形状。也可
以看到很多double stars,很多有趣的东西可以看。
我一开始真心没期待太多,因为总共也就200多刀,和狗头差不多。后来发现画质其实
很好。
这个c90在论坛上很受欢迎,人称grab-a... 阅读全帖
n******7
发帖数: 12463
13
来自主题: SanDiego版 - kayak看鲸鱼有什么要注意的吗?
我这个参数是
70mm (2.8") diameter refractor, 700mm focal length (f/10),
German equatorial mount with RA and DEC slow-motion controls and setting
circles, 5x24 finderscope, 20mm eyepiece (35x) - 1-1/4", 4mm eyepiece (175x)
- 1-1/4", erect image diagonal - 1-1/4", Barlow lens 3x - 1-1/4",
adjustable aluminum tripod with accessory tray, "The Sky Level 1" CD-ROM.
Metallic charcoal black tube color.
x*7
发帖数: 11281
14
一寸管径,mildot分划
http://www.natchezss.com/product.cfm?contentID=productDetail&prodID=BH321040M&lsrc=NZ&src=BE602
review
http://www.snipercentral.com/bushtact.htm
spec:
RainGuard, the revolutionary new lens coating developed by Bushnell, is now
available on Bushnell Elite 3200 riflescopes. RainGuard is a special water
repellent coating on which condensation forms in much smaller droplets when
the scope is exposed to rain, fog, or snow. These droplets result in a much
clearer and more usable view. Wa... 阅读全帖
n**b
发帖数: 13203
15
来自主题: PhotoGear版 - GA645初试心得和两张试机片
其实在BING的最后时刻慌忙出手买来后,很长一段时间没有碰过。当时那个远在韩国的
卖家很快就寄来了,Mint,而且送了一卷RVP120。这个卷到现在也没冲,反而是最近拍
的黑白先出来了。以前很多位都介绍过了,我再来重复说说吧。
GA645,黑色,上书“Professional”,觉得很Funny,感觉多此一举。上卷是全自动,
高速快捷。和上135的卷儿基本一样。
尺寸不大,这里有张比较图,大概能看出大小。揣在衣服里有点夸张,但是挂在肩上或
脖子上跟没有一样,极轻,塑料玩具。
全开极锐,中幅片可以放到最大看细节,不容易。有AF,有中央加权测光。因为是镜头
外部测光,用滤镜的话需要补偿,这倒不是问题,反正ISO是需要手动设置的,加到ISO
里就行了。52mm口径的滤镜,应该是最容易找的了,我以前收集了差不多一整套Nikon
的,刚好全给GA645了。刚用的时候对焦噪声有些吓人,习惯了就好了。对焦速度是比
135慢,但是可以忍受,拍的时候注意视窗里的距离,偏差太多的话要调整免得跑焦。
取景器给人一种惊艳的感觉,极为明亮透彻,外加超亮的边框,让人觉得构图是一种享
受,即使不拍你也会想拿起来看看... 阅读全帖
k****t
发帖数: 12697
16
来自主题: PhotoGear版 - [WTB]diopter for f3hp/f3 non-hp/fe...
[FS] INFORMATION
要价包子两.
F3, FM(2),FE(2),FA EYEPIECE 通用, 买那个便宜的FM2的.
http://cgi.ebay.com/NIKON-EYEPIECE-CORRECTION-DIOPTER-2-0D-nIKO
http://cgi.ebay.com/NIKON-2-0-D-DIOPTER-CORRECTION-EYE-PIECE-FM
t***0
发帖数: 380
17
nikon D700及以上的机型都有eyepiece shutter。D750及以下的附赠eyepice cover,
需要把eyecup取下来再放上盖子。
Canon只有1Dx这个级别有eyepiece shutter,其他都跟d750一样是cover。
r*******i
发帖数: 1640
18
来自主题: PhotoGear版 - Nikon D800 问题,请指点
前段时间不是讨论过在取景器里看到的灰尘最可能在哪么。。
结论是eyepiece或者对焦屏,如果你在拆卸eyepiece的过程中没有观察到灰点位置有变
化的话基本可以确定在对焦屏上
不过不要轻易自己尝试擦对焦屏,好像是这么说的
s******o
发帖数: 298
19
来自主题: Astronomy版 - Review:Scopetronix Moon Filter
by Mike Weasner
I purchased this filter from Scopetronix. I decided that after nearly 40 years
of looking at the Moon without a filter I should give one a try. The Moon
filter attaches to almost any 1-1/4" eyepiece. It is a neutral density filter,
meaning there is no color shift, that reduces the amount of light passing
through.
My first night out with it the Moon was about 4 days old (crescent). With the
standard 26mm eyepiece on the ETX-90RA the Moon without a filter was
bright but not uncomf
m****8
发帖数: 419
20
☆─────────────────────────────────────☆
eastlake (我爱小棉袄) 于 (Fri May 8 12:32:13 2009) 提到:
是戴眼镜,隐形,还是用显微镜的eyepiece?谢谢!
☆─────────────────────────────────────☆
USMedEdu (US_CMGs) 于 (Fri May 8 13:08:16 2009) 提到:
depending on yourself's favorate.
sb w/ 隐形, sb take off eyeglasses using scope eyepieces, I just read slides
w/ my daily used eyeglasses.
☆─────────────────────────────────────☆
buckwheat (脱水蔬菜) 于 (Fri May 8 13:39:09 2009) 提到:
I have one silly question. Are you required to
w*******y
发帖数: 60932
21
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
s******o
发帖数: 298
22
来自主题: _Astronomy版 - Review:Scopetronix Moon Filter
by Mike Weasner
I purchased this filter from Scopetronix. I decided that after nearly 40 years
of looking at the Moon without a filter I should give one a try. The Moon
filter attaches to almost any 1-1/4" eyepiece. It is a neutral density filter,
meaning there is no color shift, that reduces the amount of light passing
through.
My first night out with it the Moon was about 4 days old (crescent). With the
standard 26mm eyepiece on the ETX-90RA the Moon without a filter was
bright but not uncomf
x****u
发帖数: 12955
23
Where's the freaking microphone and earphone? You got eyepiece and PDA, but
no basic voice communication equipment.

发帖数: 1
24
来自主题: Military版 - 12月10日 可能的历史
Yarmouth Port, Massachusetts
From Wikipedia, the free encyclopedia
Yarmouth Port, Massachusetts
Census-designated place
Boardwalk at Bass Hole
Location in Barnstable County and the state ofMassachusetts.
Coordinates: 41°42′17″N 70°13′15″WCoordinates: 41°42′17″N 70°13′
15″W
Country United States
State Massachusetts
County Barnstable
Town Yarmouth
Area
• Total 6.47 sq mi (16.76 km2)
• Land 6.04 sq mi (15.65 km2)
• Water 0.43 sq mi (1.11 km2)
Elevation 52 f... 阅读全帖

发帖数: 1
25
来自主题: Military版 - 12月25日 圣诞节快乐!
在网上发现了一个圣诞节商店,商店的建筑很有特色,而且遍布全美国,大概有70多个
店铺,以后大家买圣诞节用品可以去那里,似乎各州都有。我们这里和麻州的地址是:
CHRISTMAS TREE SHOP AUGUSTA, GA, 239 ROBERT C. DANIEL JR. PARKWAY,
AUGUSTA EXCHANGE, AUGUSTA, GA 30909, 706.738.0570, CHRISTMAS TREE SHOP
, MAGNOLIA PARK, 1117 WOODRUFF ROAD, GREENVILLE, SC 29607. 864. 297.
3667
CHRISTMAS TREE SHOPS NATICK, 1298 WORCESTER ST. ROUTE 9, SHERWOOD
PLAZA, NATICK, MA 01760, 508.655.9800
CHRISTMAS TREE SHOPS SOMERVILLE, 177 MIDDLESEX AVENUE, ASSEMBLY SQUARE
... 阅读全帖
R*N
发帖数: 2173
26
来自主题: Classified版 - [FS]Pentax K20d Body only
快门6000左右 used but like new
所有配件齐全 original box, charger, all manuals, papers and CD-roms, cables,
hotshoe insert, eyepiece cover
送Kingston 8G SDHC Class 4 卡 这台机器够用了...
USD 520 shipped
有兴趣者站内,没人要就去医院了
thanks
b******g
发帖数: 26
27
来自主题: Classified版 - [出售]Pentax K5, battery grip, and lens
犹豫了很久,终于下决心清理手里的PENTAX器材。
我想卖的物品:
(1) PENTAX K5, with KPS 1.35x eyepiece and a 3rd party battery grip
since this camera does not support peak focus, I changed focus screen with
Canon Super precision matte focusing screen to faciliate manual focus http://www.focusingscreen.com/product_info.php?cPath=25_113&products_id=1120
Condition: ~90%, about 4500 actuation
(2) PENTAX K-X
Condition: ~95%, about 2000 actuation
(3) PENTAX DA* 16-50mm f/2.8 ED (IF) SDM working fine
Condition: 90-95%
(4) PENTAX ... 阅读全帖
w*******y
发帖数: 60932
28
【 以下文字转载自 DealGroup 俱乐部 】
发信人: wiiRhappy (wiiRhappy), 信区: DealGroup
标 题: Skywatcher Telescopes on Amazon
发信站: BBS 未名空间站 (Mon May 31 16:29:54 2010, 美东)
Both telescopes come with a barlow, 12mm, and 25mm 1.25" eyepieces. Free
shipping
130mm Newtonian Equatorial mount.
[URL="http://www.amazon.com/gp/product/B0039IT3CQ/ref=s9_simh_gw_p23_i1?pf_rd_m=ATVPDKIKX0DER&pf_rd_ s=center-2&pf_rd_r=1J5G5JA4J82MV9K65VEP&pf_rd_t=101&pf_rd_p =470938631&pf_rd_i=507846[/URL]
w*******y
发帖数: 60932
29
来自主题: PennySaver版 - Skywatcher Telescopes on Amazon (转载)
【 以下文字转载自 DealGroup 俱乐部 】
发信人: wiiRhappy (wiiRhappy), 信区: DealGroup
标 题: Skywatcher Telescopes on Amazon
发信站: BBS 未名空间站 (Mon May 31 16:29:54 2010, 美东)
Both telescopes come with a barlow, 12mm, and 25mm 1.25" eyepieces. Free
shipping
130mm Newtonian Equatorial mount.
[URL="http://www.amazon.com/gp/product/B0039IT3CQ/ref=s9_simh_gw_p23_i1?pf_rd_m=ATVPDKIKX0DER&pf_rd_ s=center-2&pf_rd_r=1J5G5JA4J82MV9K65VEP&pf_rd_t=101&pf_rd_p =470938631&pf_rd_i=507846[/URL]
w*******y
发帖数: 60932
30
来自主题: shopping版 - Skywatcher Telescopes on Amazon (转载)
【 以下文字转载自 DealGroup 俱乐部 】
发信人: wiiRhappy (wiiRhappy), 信区: DealGroup
标 题: Skywatcher Telescopes on Amazon
发信站: BBS 未名空间站 (Mon May 31 16:29:54 2010, 美东)
Both telescopes come with a barlow, 12mm, and 25mm 1.25" eyepieces. Free
shipping
130mm Newtonian Equatorial mount.
[URL="http://www.amazon.com/gp/product/B0039IT3CQ/ref=s9_simh_gw_p23_i1?pf_rd_m=ATVPDKIKX0DER&pf_rd_ s=center-2&pf_rd_r=1J5G5JA4J82MV9K65VEP&pf_rd_t=101&pf_rd_p =470938631&pf_rd_i=507846[/URL]
r********8
发帖数: 3314
31
来自主题: LosAngeles版 - 通过天文望远镜的月亮照片
就是最简单的很老的数码相机,直接放到天文望远镜的eyepiece 上照的。
数码相机的倍数为1, 没有放大。

发帖数: 1
32
来自主题: Oregon版 - 出售Nikon全幅相机D600
Original golden box with all contents:
NikonD600 camera, battery and charger, manuals, blank warranty card,
software CD, body cap, eyepiece cap, strap, USB cable
Shutter count: 233xx
$950 OBO
有意者请站内回复。
G**********e
发帖数: 11693
33
来自主题: GunsAndGears版 - 卖一个崭新的Trijicon AccuPoint Scope
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
f*********n
发帖数: 11154
34
来自主题: GunsAndGears版 - 一篇安装光瞄得文章
http://www.rifleshootermag.com/gunsmithing/RS_mountup_200902/in
Here's how to do it. Snug the rifle in a rifle cradle. If you don't have
a cradle, get one.
Swab the receiver and mount or ring bases with gun-cleaning solvent to
remove grease, grit and fingerprints. Follow with a dry cloth, then a
silicone-impregnated rag.
Put base screws in a coffee saucer. If you don't, you'll lose one or
more. Guaranteed.
Set the base on the receiver and start the screws using a close-fitting
magnetic screwdriv... 阅读全帖
s********y
发帖数: 769
35
今天拿到的这个镜子,但是很快发现目镜的锁止环超紧。
按照说明书,在调整目镜前,要先把locker ring 松了,而它紧得怎么拧都拧不动。
版上有人也有这个镜子的吗?能说说吗?
M*******n
发帖数: 1165
36
不知道你说的是哪个部位,你是说调放大倍数的还是说调click的,我的都没问题啊?
j***n
发帖数: 3786
37
多用就松了,大多数东西都是这个道理~~~
o**d
发帖数: 3080
38
lol
M*******n
发帖数: 1165
39
很x....
v****0
发帖数: 1887
40
当初考虑过这款
还是觉得太贵 最后ebay 上进了一个Nikon
反正也不会换eyepiece
现在看鸟 观靶 都好
如果有个架相机的 可以拍照就更好了
C*******r
发帖数: 10345
41
来自主题: GunsAndGears版 - 各位兄弟有没有好的观靶镜可推荐?
俺的配置,Pentax 65ed-ii body $419 at Adorama 加上 Orion Epic II ED 15mm
eyepiece,$75 at Orion Telescopes. 两百米看223的孔没问题。曾经加个Barlow试试
,结果focus不灵了,但是在某些距离还是能看得清,连树叶上有几根筋都能数出来。
C*******r
发帖数: 10345
42
来自主题: GunsAndGears版 - 在淘宝买天文望远镜代替观靶镜?
看折射的还是反射的,折射的是正的,反射的是倒的。俺的是折射的,能当管靶镜用,
但搬来搬去不方便,结果花了400刀买了个Pentax,和天文望远镜用同样的eyepiece,
效果很不错。
k*******n
发帖数: 5546
43
来自主题: GunsAndGears版 - I approve the Bushnell Elite scope!
看说明书,上图左边,那个箭头,就是Fast Focus Eyepiece调节,用于快速调节
reticle pattern是否清晰。 我试了试,好像没啥明显效果。
k*******n
发帖数: 5546
44
来自主题: GunsAndGears版 - I approve the Bushnell Elite scope!
看说明书,上图左边,那个箭头,就是Fast Focus Eyepiece调节,用于快速调节
reticle pattern是否清晰。 我试了试,好像没啥明显效果。
W*****r
发帖数: 5681
45
来自主题: GunsAndGears版 - AR15 外表改造完成
谢谢。 我们小孩子个性啦。 关于镜子目镜对焦的问题。 我的是新买的镜子。 也需
要调节一下吗? 是不是 eyepiece adjustment? 回家后我再看看一次。
W*****r
发帖数: 5681
46
来自主题: GunsAndGears版 - 波特兰枪展 (图多,load慢)
跟镜子老头谈过后, 我买了 rifle riser mount 3/4". 他帮我调我的 scope
eyepiece。 move my scope toward the back to balance. extend my buttstock
accordingly. with correct eye relief, 我的 double images resolved. nice and
sharp now.
C*******r
发帖数: 10345
47
来自主题: GunsAndGears版 - 求镜子推荐
Pentax的scope没用过,不过俺要赞一下Pentax的spotting scope,和天文望远镜通用
eyepiece,200码看223的洞,清清楚楚。再远没试过,就不知道了。价格远比德国的便
宜。

3-
f********4
发帖数: 955
48
来自主题: GunsAndGears版 - Practical shotgun scope choice.
http://www.natchezss.com/product.cfm?contentID=productDetail&br
shotgun slug打鹿绝配。
Magnification: 1.65-5x
Objective Diameter: 36mm
Exit Pupil: 7.2mm
Field of View: 15.1 - 45.3 ft @ 100 yds
Eye Relief: 5 in
Tube Diameter: 1 in
Objective Outside Diameter: 45mm
Eyepiece Outside Diameter: 42mm
Weight: 13.58 oz
Overall Length: 11.14 in
Adjustment Graduation: 1/4 in
Max Internal Adjustment: 100 MOA
Parallax Setting: 100 yds
Waterproof & Fogproof
Finish: Matte
Reticle: NikoPlex
l*****o
发帖数: 26631
49
来自主题: gardening版 - 新玩具:显微镜
你看网站主页上的介绍:
http://www.nikoninstruments.com/Products/Microscope-Systems/Ste
Total Magnification:
4x to 300x depending on eyepiece and auxiliary objective used
s*****n
发帖数: 10890
50
用手持测光表。入射光测得最准。
另外推荐个附件
http://www.ebay.com/itm/3-4-3-2-8x-Magnification-DSLR-Eyepiece-
大太阳下你用了闪灯也基本看不出来效果。用这个应该有帮助。
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