What's the Loooooooooooooooooooooooooongest Exposure you've ever done?
Dec 27, 2017 22:10:22 #
David in Dallas wrote:
Find the densest part of the Milky Way in the sky and then find the part that is 180° away from it (probably not both visible at the same time)--that is the part "beyond us".
I see, David ... thanks ... gotya ... I think ....
Dec 28, 2017 07:27:32 #
I'm still experimenting with star trails. This was taken in my back garden at about 11 pm. Due to ambient light, this did lighten up the sky. F20/ISO800 roughly 50 minutes exposure. Am still trying to get the perfect star trails...Grace
Chris T wrote:
Please submit an example, if you can, and fill in some data on it .... Would you do something like that again, or no?
Dec 28, 2017 07:29:43 #
Mcveed - this is brilliant...I'm hoping for some such photos when I go to the atacama desert in January. If my pics come out half as good as yours,
will be a very happy girl...Grace
will be a very happy girl...Grace
mcveed wrote:
20 sec @ f2.8. Olympus EM1MkII with 7-14 f2.8 lens at 12mm (equiv 24mm). South Africa 23 May 2017.
Dec 28, 2017 11:25:02 #
Grace98 wrote:
I'm still experimenting with star trails. This was taken in my back garden at about 11 pm. Due to ambient light, this did lighten up the sky. F20/ISO800 roughly 50 minutes exposure. Am still trying to get the perfect star trails...Grace
Neat, Grace ... like the juxtaposition there ... brick wall ... star trails ... 50 minutes at f20, huh and ISO 800? ... a guess, or ... ?
Dec 28, 2017 11:50:24 #
No Chris, it's not a guess. I've checked the Properties of the jpeg imaga and it did say ISO 800. I've even taken Fireworks at ISO100. The exposure to be exact is 3327.1 seconds. Grace
Chris T wrote:
Neat, Grace ... like the juxtaposition there ... brick wall ... star trails ... 50 minutes at f20, huh and ISO 800? ... a guess, or ... ?
Dec 28, 2017 11:58:07 #
Chris this is called "Ghosting" and quite easy to do. Here's another example of ghosting that's me in the pic...F5.6 Exposure 5 seconds ISO100. Set camera on tripod, using a shutter trigger. As soon as you click the shutter, jump quickly in front of the camera and jump back...fun trying...we were in a town square one night and passers by thought we were mad!!!! Grace
Chris T wrote:
Oh, neat, Chi ... clever how you did that ... Santa imposed against the tree ....
Shame you couldn't have cropped it lower, though - to eliminate the ceiling light ...
But, it's neat, never-the-less ....
Shame you couldn't have cropped it lower, though - to eliminate the ceiling light ...
But, it's neat, never-the-less ....
Dec 28, 2017 12:37:29 #
Grace98 wrote:
Chris this is called "Ghosting" and quite easy to do. Here's another example of ghosting that's me in the pic...F5.6 Exposure 5 seconds ISO100. Set camera on tripod, using a shutter trigger. As soon as you click the shutter, jump quickly in front of the camera and jump back...fun trying...we were in a town square one night and passers by thought we were mad!!!! Grace
Oh, that's great, Grace .... look at that, willya? ... Casper, the Friendly Ghost - in the flesh !!!!
So neat ... didn't realize you could do that!!!
Thanks for sharing, Grace ....
Dec 28, 2017 12:39:53 #
Grace98 wrote:
No Chris, it's not a guess. I've checked the Properties of the jpeg imaga and it did say ISO 800. I've even taken Fireworks at ISO100. The exposure to be exact is 3327.1 seconds. Grace
The "guess" part of that equation - referred to the entire exposure, not just to the ISO ....
I meant - where did you get the guide of f20 at 33 seconds at ISO 800 - to start with? ... to get your Star Trails ....
Dec 28, 2017 13:37:00 #
I read in an article that star trails require very long exposure. It was trial and error. Used various Fstops/exposure. Was in a dark corner in my garden but just outside wall there was a lamp-post and lights from windows. The exposure is actually 55 minutes & 45 seconds ((3327 seconds). Twice a night on clear nights for several days. Camera on bulb mode, remote trigger shutter, press shutter and lock...go inside house in the warmth, watch TV whilst keeping an eye on the clock. After 55 minutes, rushed out in garden, unlocked trigger...and this was the result. Nearly tripped twice on the tripod as couldn't see it until my eyes adjusted :)
Chris T wrote:
The "guess" part of that equation - referred to the entire exposure, not just to the ISO ....
I meant - where did you get the guide of f20 at 33 seconds at ISO 800 - to start with? ... to get your Star Trails ....
I meant - where did you get the guide of f20 at 33 seconds at ISO 800 - to start with? ... to get your Star Trails ....
Dec 28, 2017 13:49:37 #
Grace98 wrote:
I read in an article that star trails require very... (show quote)
Okay, then, Grace ... then it comes back to the part of it you thought I was addressing, before ... why ISO 800?
You know, I looked at the number real quick - saw the decimal, and transposed it in my mind to 33 whatever ... sorry ...
Gotta be careful, falling over your tripod, there ...
Dec 28, 2017 16:42:58 #
Don't have a clue...sorry..guess was experimenting with ISO as well..Grace
Chris T wrote:
Okay, then, Grace ... then it comes back to the part of it you thought I was addressing, before ... why ISO 800?
You know, I looked at the number real quick - saw the decimal, and transposed it in my mind to 33 whatever ... sorry ...
Gotta be careful, falling over your tripod, there ...
You know, I looked at the number real quick - saw the decimal, and transposed it in my mind to 33 whatever ... sorry ...
Gotta be careful, falling over your tripod, there ...
Dec 28, 2017 16:53:31 #
Grace98 wrote:
Don't have a clue...sorry..guess was experimenting with ISO as well..Grace
It's a good everyday ISO for most things (I usually use something in the 400-650 area) unless it's a really bright day - then you dial down to 100 or so ...
But, for this kind of thing ... with a really long exposure ... you might be better off upping it ... to like half of what your capability is ...
For instance, if it's 6400 ... then, 3200 ... if it's 12,800 ... then, 6400 .... and, so on ...
With bright things in a dark sky ... every little bit helps ....
Try it, Grace ... can't hurt!!!
Dec 29, 2017 07:00:08 #
You're right Chris...for long exposures should really up the ISO - need more practice with long exposures...thanks for tip...Grace
Chris T wrote:
It's a good everyday ISO for most things (I usuall... (show quote)
Dec 29, 2017 21:01:54 #
Grace98 wrote:
You're right Chris...for long exposures should really up the ISO - need more practice with long exposures...thanks for tip...Grace
Sure, Grace ... hope that works out for you ... and - hey ... try and move away from that wall, some - okay?
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