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minimising Star trails ?

I found this from a 2008 sky at night article Shooting the stars:
Take out the star trails
The rotation of the Earth will make Orion appear to move slowly from east to west. The shorter the focal length of your camera lens, the longer the exposure you can get away with before you start getting star trails in your image. The formula for working out how long you’ve got is
Time (seconds) = 1000 ...
Read more : minimising Star trails ? | Views : 1415 | Replies : 6

DSLR adapters for Telescope.

I've been Given a Tasco luminova Telescope And would Love to set up my Nikon 3000 DSLR camera Up to it.

I was wondering if all adapters fitted all telescopes or would need to get a specific one?
Any Information and advise is gratefully received. :] x

Thank you.
Michaela. x
Read more : DSLR adapters for Telescope. | Views : 1174 | Replies : 2

PSU requirement for a Sky-Watcher EQ6 pro

Had a search for EQ6 pro to find out what current it draws from the power supply.
Nothing in this Forum's search and nothing in the mount documentation.

So I measured the current at the battery feeding the EQ6pro (mVdrop across a 1r0 resistor)
I got ~100mA when I switched on.
Did a few Alt and Dec slews (one at a time) and it hovered around 950mA while fast slewing.
Then left it doing nothing ...
Read more : PSU requirement for a Sky-Watcher EQ6 pro | Views : 1344 | Replies : 4

is there someone Use real camera with Film/role <(o_q)/

question someone still used the old way
some one still Use real camera with Film/role on old telescope

i have old Leica R3 camera like information pleas :lol:

Fun story
my dad's purchased leica camera NEW in Holland Netherlands.
and immigrated to New~zealand
my dad was about 30 years aGo.? in New~zealand auckland.
there was someting wrong with LEICA R3 electronic
the camera salesman of ...
Read more : is there someone Use real camera with Film/role <(o_q)/ | Views : 882 | Replies : 0

Camera lens or an apo refractor?

The new Sigma 100-400mm f5-6.3 looks interesting and has received excellent reviews. It's currently retailing for £799. I figure you could get a 2.5" triplet apo refractor for the money. The lens of course offers autofocus and stabilisation on top of the variable focal length. But the refractor would have better contrast for astronomy work.

Thoughts? (I've already got a 66mm doublet refractor.)

Dave B.
Read more : Camera lens or an apo refractor? | Views : 1409 | Replies : 3

where to locate the Barlow?

I lost my post !

Starting again
I have bought a refractor to replace my not good 6" Newtonian.
The scope has a 2" focuser, and I ordered a 2" diagonal and a 2" Barlow.
What order do it place the diagonal and Barlow?

Focuser > Barlow > diagonal > eyepiece
Focuser > diagonal > Barlow > eyepiece

The Barlow came with 2" to 1.25" adaptor, so I can use either 2" or 1.25" ...
Read more : where to locate the Barlow? | Views : 1484 | Replies : 4

Telescope cases


I am a complete beginner and have no idea what I'm doing, but I have decided to buy a telescope and have settled on a Skywatcher evostar 120 with an eq5 mount. I guess my first question is do I need a case for both the telescope and the mount?

I will be taking it in my car to get dark skies so I assume that I do for the telescope as this is ...
Read more : Telescope cases | Views : 1313 | Replies : 3

Newtonian Spherical Projection System

I recently purchased at auction an entire projection system from a university. It's all from a company called "spice automation" from what I can tell it's from 1992. I have no idea what a good place to get rid of some of this equipment would be or even what it does. Right now I have a Newtonian Spherical Projection System about to go on ebay tonight, but as for the rest??? anyone ever heard of ...
Read more : Newtonian Spherical Projection System | Views : 884 | Replies : 0

Beginners telescope & book recommendations, please.

Hi, I'm looking for a telescope for my daughter's 9th birthday. She would want to be able to see details of the moon and also the whole moon, stars and ideally some real 'wow' views.
She is also a keen birdwatcher, so one that can be used for that too, would be great. However, if it really meant she wouldn't get such a good view of the night sky, then we may reconsider this aspect. ...
Read more : Beginners telescope & book recommendations, please. | Views : 1465 | Replies : 3

Astrophotography Beginners Equipment Help

Hi all,

I am sure you get this a lot, and I have read a few posts and articles about starting astrophotography and it seems it can be done step by step which I think I will need to do.

Basically, I can invest a bit of money at a time, but not all at once - I know I will have to learn and work towards those amazing DSO images and it's going to ...
Read more : Astrophotography Beginners Equipment Help | Views : 5075 | Replies : 7


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