Milky Way at Sedili Besar

jiahao1986 · Post by **jiahao1986** » Tue May 10, 2011 12:03 am

Just to share the only astro shot from my last trip to Sedili Besar. It was clouded out shortly after I finished setting up my gears, this one is the only shot I managed to take. Hope next time get better luck...

Sky transparency 7/10, Canon 5D Mark II with Sigma 50 f/1.4, 30s single exposure at f/2.0 and ISO 640...

Robin Lee · Post by **Robin Lee** » Tue May 10, 2011 11:02 pm

Nice one Jiahao! Did you mean to say ISO6400?

jiahao1986 · Post by **jiahao1986** » Tue May 10, 2011 11:43 pm

Kim Miau wrote:Nice one Jiahao! Did you mean to say ISO6400?

Hey dude,

It was ISO 640. f/2.0 made this possible...

Robin Lee · Post by **Robin Lee** » Tue May 10, 2011 11:47 pm

jiahao1986 wrote:
Kim Miau wrote:Nice one Jiahao! Did you mean to say ISO6400?
Hey dude,

It was ISO 640. f/2.0 made this possible...

Hmm... I wonder why you didn't bump it up to ISO1600 or even ISO3200 since 5dMk2 has such low dark current and readout noise.

jiahao1986 · Post by **jiahao1986** » Tue May 10, 2011 11:51 pm

Kim Miau wrote:
jiahao1986 wrote:
Kim Miau wrote:Nice one Jiahao! Did you mean to say ISO6400?
Hey dude,

It was ISO 640. f/2.0 made this possible...
Hmm... I wonder why you didn't bump it up to ISO1600 or even ISO3200 since 5dMk2 has such low dark current and readout noise.

Actually 5D Mark ii's noise control not that good lah, ISO 800 would've get the perfect exposure for this, but a bit nosiy compared to ISO 640.

Robin Lee · Post by **Robin Lee** » Wed May 11, 2011 12:03 am

jiahao1986 wrote:
Kim Miau wrote:
jiahao1986 wrote: Hey dude,

It was ISO 640. f/2.0 made this possible...
Hmm... I wonder why you didn't bump it up to ISO1600 or even ISO3200 since 5dMk2 has such low dark current and readout noise.
Actually 5D Mark ii's noise control not that good lah, ISO 800 would've get the perfect exposure for this, but a bit nosiy compared to ISO 640.

Did you shoot in RAW? I have seen very clean shots even at ISO1600. There is some pro-processing involved but not much.

You can compare https://www.facebook.com/media/set/?set ... .687958520 and https://www.facebook.com/media/set/?set ... .687958520, though they were not taken when the night was darkest. The images were obtained at Mt.Kinabalu.

jiahao1986 · Post by **jiahao1986** » Wed May 11, 2011 12:16 am

Kim Miau wrote:
jiahao1986 wrote:
Kim Miau wrote: Hmm... I wonder why you didn't bump it up to ISO1600 or even ISO3200 since 5dMk2 has such low dark current and readout noise.
Actually 5D Mark ii's noise control not that good lah, ISO 800 would've get the perfect exposure for this, but a bit nosiy compared to ISO 640.
Did you shoot in RAW? I have seen very clean shots even at ISO1600. There is some pro-processing involved but not much.

You can compare https://www.facebook.com/media/set/?set ... .687958520 and https://www.facebook.com/media/set/?set ... .687958520, though they were not taken when the night was darkest. The images were obtained at Mt.Kinabalu.

I don't have Facebook account man, can't access the image... Anyways I'd go with relatively lower ISO, smaller aperture and longer exposure if I have tracking. The shot in the post is with tracking, otherwise 30s at 50mm will leave trails already.

shirox · Post by **shirox** » Wed May 11, 2011 12:29 am

nice pic jiahao.

Gary · Post by **Gary** » Mon May 23, 2011 7:07 pm

Beautiful stuff! Nice composition of milky way rising just above the tree line.