Hi all,
Would like to seek your advice on this. I am using 7D + 17-55 f2.8 for the upcoming shooting of northern lights. Will be bringing a tripod too. Is f2.8 good enough or do I need to get 24mm f1.4 as I am afraid the ISO is not sufficient. Thanks.
Depending on the intensity of the aurora, you might be able to get away with lower iso. But in general I guess the iso might be in the region of 1600 to 3200 at f2.8. Exposure is usually short like let's say 3sec... If exposed for too long. It will look like one big patch of green stuffs.Would love to get a FF but is the setup good enough? Or is it really a need for FF? Thanks
Would love to get a FF but is the setup good enough? Or is it really a need for FF? Thanks
Depending on the intensity of the aurora, you might be able to get away with lower iso. But in general I guess the iso might be in the region of 1600 to 3200 at f2.8. Exposure is usually short like let's say 3sec... If exposed for too long. It will look like one big patch of green stuffs. And I would also suggest a wider angle lens... Even 14mm on ff is not enough for me.... Samyang have a 12mm 2.8 at a reasonable price.
Thanks for the recommendation. Samyang not Autofocus? Prefer lens with AF.
Thanks for the recommendation. Samyang not Autofocus? Prefer lens with AF.
Have you heard about hyperfocal distance? Helps to set the infinity focus.Thanks for the recommendation. Samyang not Autofocus? Prefer lens with AF.
Have you heard about hyperfocal distance? Helps to set the infinity focus.
http://www.dofmaster.com/dofjs.html
Example: For your 7D with Samyang 12mm, a focusing distance of 3m will give you already infinity focus, even with f/2.8.
The lens has a scale up to 1m and everything beyond (white 'L' shaped mark) is already considered 'infinity'. Don't turn to the hard stop, leave the focus ring just before.
http://www.personal-view.com/talks/discussion/11427/12mm-f2.8-samyang-ff-fish-eye/p1
Remark: the Samyang 12mm f/2.8 is a Fish Eye lens. The 12mm f/2.0 is a 'normal' lens for APS-C sensors.
Good info sharing, thanks.
One question, do u use any handheld simple portable device to measure the distance, like in this case 3m?
Bcos i'm not good at estimating the distance.
Plenty of Boy Scout tricks in the Internet, doesn't need to be accurate to the decimals. Check the length of your tripod, fully extended, and you get another way to measure.Good info sharing, thanks.
One question, do u use any handheld simple portable device to measure the distance, like in this case 3m?
Bcos i'm not good at estimating the distance.