社区 › 观测摄影 › 看看PST日珥镜的威力！！过马路兄必看啊！

ufo 发表于 2004-8-17 23:18

看看PST日珥镜的威力！！过马路兄必看啊！

这个拍摄者的话！

I used a set of adapters to fabricate a sturdy connection between the 10D body
and the
PST eyepiece holder. Here's what I did:

1) I used a UO 18 mm eyepiece, unthreaded it off its 1.25" cylinder, and
threaded it into
the internal threading of an 1.25"nosecone-to-T-thread adapter.
2) A 40 mm long T-threaded extension tube connected the above assembly to an
EOS-to-
T-thread adapter.
3) The whole assembly went into the camera body, and the nosecone was inserted
into the
PST.

With the 40 mm extension tube, I got a magnification of about 3.5x, and ended up
with a
solar disc of 12.5 mm diameter on the CMOS sensor of the 10D (its dimensions are
about
15.5 x 22 mm). This assembly does reach focus when the nosepiece is fully
inserted into
the PST, and at the given magnification.

I will, weather permitting, try several other eyepieces and see if I can further
improve
contrast.

Even though the 10D is a rather heavy camera body, the connection is very sturdy
and the
image is well-centered.

> I've been using my Olympus digicam but find it difficult to focus since it
isn't an SLR. I've
been wanting to get either the Nikon D70 or Canon 10D and this could push me
over the
fence.

I would consider the 300D instead. Cheaper and lighter , but same chip as the
10D. One
word of caution: Some of the CCD or CMOS chips show ugly interference fringes
(Newton
rings) that are formed in the chip cover or IR filter in front of the camera
chip when
illuminated with monochromatic light. Some cameras have them, some don't. Mine
shows
a few very minor fringes that are easy to process away. I do know from
discussions on
digital_astro that Paul Hyndman had trouble with Newton rings in the past...
maybe he can
give you more details?

raoul

寻星镜 发表于 2004-8-18 12:05

hehe

真不错！！

littlePig 发表于 2004-8-18 12:57

又在放毒了！

那个PST是什么的缩写？

Elvis 发表于 2004-8-18 13:08

personal solar telescope

ufo 发表于 2004-8-18 14:03

请看介绍！

http://www.coronadofilters.com/cgi/display_catalog.cgi?w=1024

福建ltycho 发表于 2004-8-18 16:31

日珥的颜色怎么变成那样了？这个镜子有意思～

littlePig 发表于 2004-8-18 18:13

Package 3 – SolarMax 90 / BF30 - $6045.00

Are you joking ？！

ufo 发表于 2004-8-18 18:49

真的是那么贵的！而且产量不多，也许要排队买的。
PST现在也比较难买到！！不过，过马路兄有一支！！

ufo 发表于 2004-8-18 18:50

PST只要499美金！！相对来说是比较便宜的日珥镜！！

jupiter1186 发表于 2004-8-18 19:25

！美极了！

Will 发表于 2004-8-18 22:15

好

过马路 发表于 2004-8-19 05:50

好哦!
这张照片拍的真不错, 而且这些玩意儿好象我也都有, 回头装起来试试!

ufo 发表于 2004-8-19 12:21

最初由 过马路 发表
好哦!
这张照片拍的真不错, 而且这些玩意儿好象我也都有, 回头装起来试试!
是啊。等着看您的照片啊！！em100.gif

查看完整版本: 看看PST日珥镜的威力！！过马路兄必看啊！