liewwk Nature Photography Blog
star trail need a lot of patient.. after hours capture the compo could be wrong , the weather could be change to cloudy …. etc but yet we still trying our best to capture to share
– Canon 5d + 14F2.8 @F2.8 + 30s x 123
#####################
– the only north star I capture … 🙁
######################
– my 2011 Jul workshop capture
##############
– with reflection
###################
More Stars/Nightscape Captures
some related sharing
When
16-17 April 2011
Where
Muar – Batu Pahat
I will have a mini workshop for long exposure so I decide to make one South (Muar – Batu Pahat, Johor) …
this is not a full Workshop but I will share some tips
1. what tools - filter explanation - which filter to use
2. how to shoot Long Exposure
– how do we calculate the exposure time
– some experience what setting
– what’s best exposure for different effect
3. what accessories require for Long Exposure
4. Post Processing tips (my Long Exposure and Star PP workflow)
5. How I shoot Stars
this trip will limit to 4-6 participants and now 2 have been fill …..
*** update 23 March 2011 , 4 seat had been fill …..
*** update 28 March 2011, 6 seats had been fill … and this is close now !!!
RM499 will include
1. travel from KL
2. accommodation (we will have quick rest after sunset) (3 stars hotel 2 share 1room)
3. monitor calibration, if you bring yours notebook along
*** this is not a basic class, will assume participant already know basic of DSLR, A-mode, M-mode, exposure, Aperture, ISO, Bulb-mode (will share how to calculate for right exposure)
Contact me for different fee, if you arrange yours own transport …
liewwk@liewwkphoto.com or Contact me
Me and my gang have a short discussion last week whether should we use the camera Long exposures noise reduction (NR) or not … as it normally produce hot pixel (red dots) after the long exposures shot especially involve a lot of dark area (black, dark grey ….). e.g. show below
Red dots appear … without the Long Exposure (LE) NR turn on camera body
But from my experience the noises and even the red dot can be reduce manually in Adobe Camera Raw (ACR) noise reduction function …
here are few pictures capture
1. with LE NR turn on
2. no LE NR turn and no PP
2. no LE NR turn and with ACR NR
simple ACR Noise Reduction
a 100% crop of 3 pictures above
*** all the setting are the same and it look slight different due to the sky turning dark …
Canon 5dm2 + Canon 1635L
# Exposure Time (1 / Shutter Speed) = 79/1 second ===> 79 second
# Lens F-Number / F-Stop = 11/1 ===> ƒ/11
# ISO Speed Ratings = 200
based on the 3 pictures compare
– picture with LE NR turn on body require double exposure time
– less noise especially the “red dot”/hot pixel
– the one without any NR with more details
– simple NR on non LE NR picture can reduce more noise and all red-dot (hot pixel) disappear. Even less details compare to the LE NR turn on picture. But this sure can be fine tune by some masking the foreground or main object
So if you ask me, is it worth to spend double the time while shooting ? my answer is no while I can reduce the noise in PP … so I will safe more time to shoot and remove the noise later …..