Skip to Content

Want to take star circles

Share and discuss your images (strictly SANparks related)
User avatar
Massimo
Posts: 237
Joined: Wed Jul 02, 2008 2:34 pm
Location: Edenvale

Want to take star circles

Unread postby Massimo » Tue Jun 08, 2010 10:59 am

Hi All.

Im going to Kruger in 9 days and i would really like to test one thing out! That is to try and take a photo of the sky at night but the star's and sky look circular! I hope you guys understand what im basically looking at doing! I have no clue as what i need to do and i would like to know if there is anyone out there that can give me some? I have a Canon 450 D with a 18-55mm IS lens along with a 55-250 lens!!

cant wait to start :cam: :cam: :cam: :cam: :cam: :cam: at the wildlife big and small!!!
Canon 5D MK III :) :), Canon 7D , Canon 450D | Canon 400 F5.6 L | Canon 70-200 F2.8 L IS|Sigma 10-200 EX DG OS F4-5.6 & goodies :)
Runner up wildlife photographer of the year 2012-sunday times & winner-Canon S.A. reflection category

User avatar
RUMURUTI
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 1868
Joined: Thu Feb 12, 2009 11:54 pm
Location: Milano (Italy) - IT ALL STARTED WITH A FOOTSTEP!
Contact:

Re: Want to take star circles

Unread postby RUMURUTI » Tue Jun 08, 2010 11:06 am

Massimo wrote:Hi All.

Im going to Kruger in 9 days and i would really like to test one thing out! That is to try and take a photo of the sky at night but the star's and sky look circular! I hope you guys understand what im basically looking at doing! I have no clue as what i need to do and i would like to know if there is anyone out there that can give me some? I have a Canon 450 D with a 18-55mm IS lens along with a 55-250 lens!!

cant wait to start :cam: :cam: :cam: :cam: :cam: :cam: at the wildlife big and small!!!



Hi Massimo, I thinks I gots what you want o do.
First of all you need a strong tripod, second set your focus on infinity, third shot using long shutter speed. You will probably have to experiment and see how long you have to keep your shutter speed at.

Hope it is clear enough!
"You can leave Africa but Africa never leaves you"
LIFE IS MADE OF GOOD AND BAD THINGS, I TAKE THE GOOD AND YOU CAN KEEP THE BAD!!!
Andy Benaglia

User avatar
Josh of the Bushveld
Junior Virtual Ranger
Junior Virtual Ranger
Posts: 1904
Joined: Tue May 19, 2009 2:15 pm
Location: Johannesburg - too far from the closest Sanpark

Re: Want to take star circles

Unread postby Josh of the Bushveld » Tue Jun 08, 2010 11:09 am

And try find the darkest spot you can. If there is any other light in the field of view (including the moon), it will be a problem
The 'mite formerly known as joshilewis

FGASA Level 1 Guide

Glen Reenen TR

15-18 June: Berg-en-dal

User avatar
Switchback
Posts: 817
Joined: Mon May 04, 2009 9:32 am
Location: Northwold with KTP on my mind...

Re: Want to take star circles

Unread postby Switchback » Tue Jun 08, 2010 11:17 am

Hi Rumuruti,

If you want the "perfect" circular effect, you have to point your camera dead south. Then, set your camera on a tripod (pointing south), set your ISO to as low as possible and camera on TV (shutter priority). Set your shutter speed to about 30 sec or bulb mode. (I use 30 sec, take 15+ photos and stich them together with Photoshop, otherwise you may get too much noise). You also get spescialized software for star trails photos that stich them together perfectly.

When pressing the shutter, either use a remote or a shutter delay so that the camera settles on the tripod from your push on the shutter button before it starts taking the shot. Remotes are cheap and I have found quite a few uses for them.

Yes, focus on infinity or, if there is a subject that must be part of the shot, light the subject with a torch, manually focus on it and leave your camera then on manual focus. Your 18mm lens will be the one to use, and use it with your lens as open as possible, big apperture, small number.

All the best! :thumbs_up:
KNP: 14 June: Skukuza Camping
15 -21 June: Letaba Camping

User avatar
skywalker2251
Posts: 549
Joined: Thu Oct 05, 2006 4:01 pm
Location: 10,000 miles from where I'd like to be

Re: Want to take star circles

Unread postby skywalker2251 » Tue Jun 08, 2010 7:26 pm

Google star trail photography and you'll find additional advice on how to do these.

User avatar
bert
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 17192
Joined: Thu Jan 13, 2005 9:02 pm
Location: mind in SA, body in The Netherlands

Re: Want to take star circles

Unread postby bert » Tue Jun 08, 2010 7:50 pm

If you have a noise reduction on your camera please use it
And a full battery.
Best is to use a remote.
Google Arnoud Quanjer.
He has a good easy to learn topic about star circles/trails

User avatar
Bushbuddies
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 1371
Joined: Wed Nov 18, 2009 6:22 pm
Location: Centurion

Re: Want to take star circles

Unread postby Bushbuddies » Wed Jun 09, 2010 9:56 am

Massimo - thanks for asking the question! I recently bought exactly the same camera/lenses as you (came in a great "kit"-special :thumbs_up: )! And we'll be leaving to the Kgalagadi first time end July. Also thought it would be a great idea doing a star trail photo! Some good advise here!

I don't have Photoshop yet - still using Picasa. Does anybody know if you can stitch photo's together on Picasa?
13-19 June 2015 - Lower Sabie
20-23 June 2015 - Satara
24-25 June 2015 - Olifants
26-28 June 2015 - Letaba


13 Dec 2015 - Nossob
14-15 Dec 2015 - Grootkolk
16 Dec 2015 - Nossob
17-18 Dec 2015 - Mata Mata
19 Dec 2015 - Twee Rivieren

User avatar
DuQues
Honorary Virtual Ranger
Honorary Virtual Ranger
Posts: 17941
Joined: Fri Jan 14, 2005 5:42 pm
Location: Red sand, why do I keep thinking of red sand?

Re: Want to take star circles

Unread postby DuQues » Wed Jun 09, 2010 10:04 am

Here is Arnoud's website.

Stitch photos with Autostitch. That's free, fast, and gives great results. All my pano's have been put together with it.
Arriving currently: The photos from our trip! Overhere! :yaya:

Feel free to use any of these additional letters to correct the spelling of words found in the above post: a-e-t-n-d-i-o-s-m-l-u-y-h-c

User avatar
Bushbuddies
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 1371
Joined: Wed Nov 18, 2009 6:22 pm
Location: Centurion

Re: Want to take star circles

Unread postby Bushbuddies » Sun Jun 13, 2010 12:50 pm

Thanks DuQues - will definitely try that!
13-19 June 2015 - Lower Sabie
20-23 June 2015 - Satara
24-25 June 2015 - Olifants
26-28 June 2015 - Letaba


13 Dec 2015 - Nossob
14-15 Dec 2015 - Grootkolk
16 Dec 2015 - Nossob
17-18 Dec 2015 - Mata Mata
19 Dec 2015 - Twee Rivieren

User avatar
Bushbuddies
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 1371
Joined: Wed Nov 18, 2009 6:22 pm
Location: Centurion

Re: Want to take star circles

Unread postby Bushbuddies » Mon Jun 14, 2010 4:55 pm

Played around with some pics in Picasa last night - and I think one might be able to do star circles quite simply on it by using "collage" and superimposing the pictures... Will have to try it. But only once I'm back in the bush - too few stars in the polluted Gauteng sky...
13-19 June 2015 - Lower Sabie
20-23 June 2015 - Satara
24-25 June 2015 - Olifants
26-28 June 2015 - Letaba


13 Dec 2015 - Nossob
14-15 Dec 2015 - Grootkolk
16 Dec 2015 - Nossob
17-18 Dec 2015 - Mata Mata
19 Dec 2015 - Twee Rivieren

User avatar
Dreamer
Virtual Ranger
Virtual Ranger
Posts: 813
Joined: Sun Apr 09, 2006 10:23 pm
Location: Cape Town

Re: Want to take star circles

Unread postby Dreamer » Sun Aug 08, 2010 9:39 am

Hello :D Browsing this thread on this rainy Sunday morning in CT I found this thread.
Thought I would post my very amateurish shot of a star trail which I attempted in March in KTP.
Had loads of fun trying this, including running over to other guests in the park and asking them please to leave their lights switched off :lol:
It was also a very full moon and the longer I was taking to set this up the faster the moon was coming up from the left behind the tree so this was not taken in pure darkness :?
Used wide angle
Pointed South
ISO 100 @ F4
Bulb Setting Cable release
15 min exposure
Manual focused on infinity


The result was this, rather no but I was thrilled as it was my first attempt :D Would loved to have got more of the right hand side of the circles in but I suppose you can't win them all :D

Image
At home...... dreaming of next trip to KTP

User avatar
Jo
Junior Virtual Ranger
Junior Virtual Ranger
Posts: 585
Joined: Sun Oct 30, 2005 9:31 pm
Location: Benoni, RSA

Re: Want to take star circles

Unread postby Jo » Tue Aug 10, 2010 8:07 pm

Hi M

Also been experimenting with star trails.....usually do it with the good old 35mm slide film.....camera doesn't overheat, but eats up the lithium batteries! Tried a few in KTP with the DSLR 35-80 lens, think I left it on F8, focus infinity, tripod, aimed due South, exposed for 30min.....unfortunately overdid the torch work on the tree, and needed more space for the sky......thats why we keep going back!....Good luck!

Image

User avatar
Dreamer
Virtual Ranger
Virtual Ranger
Posts: 813
Joined: Sun Apr 09, 2006 10:23 pm
Location: Cape Town

Re: Want to take star circles

Unread postby Dreamer » Wed Aug 11, 2010 4:10 pm

Ho Jo :D
I so enjoyed doing this and can't wait to get back to give it another bash. It is sure trial and error! ! Just always afraid of chowing up all the battery power especially when in a Wilderness Camp.
BTW , was your shot taken at Grootkolk ? Looks like THE tree at the waterhole. :thumbs_up:
At home...... dreaming of next trip to KTP

User avatar
Jo
Junior Virtual Ranger
Junior Virtual Ranger
Posts: 585
Joined: Sun Oct 30, 2005 9:31 pm
Location: Benoni, RSA

Re: Want to take star circles

Unread postby Jo » Sun Aug 22, 2010 8:17 pm

Sorry Dreamer....just caught up on this post now.....most def Grootkolk!!!!!!!

User avatar
KendraClaire
Posts: 101
Joined: Sat Jul 17, 2010 5:29 pm
Location: Johannesburg, South Africa.

Re: Want to take star circles

Unread postby KendraClaire » Mon Aug 30, 2010 9:04 pm

Hey,

I think they are called star trails. Enjoy.

PS. Have tried in Kruger and you are going to need a full battery that will last for a long time... :D

KC


Return to “SANParks Camera Club”