5D MK 2: Images from Esplanade

[lenson]

If you are referring to the red line that run across at the bottom right, I believe is the boat light as it passes by. It has an exposure of 25sec.

I think what DjKnits meant was that retangular part of the picture which the water doesn't appear to be smooth like other parts of your picture. I was puzzled by that part too. :dunno: Why did it turn out like that over there?

 

[swishbrade]

Hmm.. in my eyes, those speckles are 'hot pixels' instead. Why ? Logically, if they can be see in the sky that way, you will also seem the reflection of some of them on the lake surface. But I see none. :dunno:

And you have to be kidding me that at ISO 800 for 1 minute you do not get noise? 30s exposure at ISO 800 produces tons of noise for the 40D as far as I've seen and experienced. Even the technicians at CPS admit that.

Doodah could have a few tricks up his sleeve. Please tell us how you got this shot dude!

I dont think they are hot spots otherwise it would have been quite a few days worth of cloning away the hot spots.

 

[swishbrade]

I'm just amazed that noise can be detected or even compared at ISO 50 or 100.....

The "Way of the Pixel Peeper" is unknown to pros like you

 

[jopel]

Hmm.. in my eyes, those speckles are 'hot pixels' instead.

I wonder how he managed to freeze the stars for a minute :bsmilie:

 

[frametology]

Sorry to wake you up from your dreams. But the 5D2 noise at ISO 100 (even worse at ISO 50) is worse than 40D at the same ISO. No kidding. The 5D2 is designed for high ISO, and that's where it really shines. I am not advocating shooting high ISO for landscapes, just to point out a common fallacy.

Anyway, here is a 1 min exposure, ISO 800 landscape shot using the moon as the only light source, taken with the 450D. The stars in the night skies seem almost like white speckled noise against the blue backdrop. But they are really stars. :bsmilie:

did you shoot this?! WAH. AWESOME. where is it?

 

[peapilot]

It's a result from the boat passing through, the lights from the boat burnt in the waves churned up when it went past, much like how flash photography freezes a subject in a slow sync capture. Nothing to worry about.

 

[Parka]

All I can say is, this camera is in a class of its own. Stunning sensor.

 

[night86mare]

Sorry to wake you up from your dreams.

sorry to wake you up from your dreams

that is noise. you have way too many stars. none of the star trail photos i have seen have quite that many stars.

 

[doodah]

Hmm.. in my eyes, those speckles are 'hot pixels' instead. Why ? Logically, if they can be see in the sky that way, you will also seem the reflection of some of them on the lake surface. But I see none. :dunno:

Hot spots are cleaned up most easily with the right software. Besides, look at the photo one more time and you'll notice the stars never occur in the central areas of the gray clouds. Hot spots, on the other hand, are random and often colored. I know 'cos there were some in the shot but they were easily removed. :bsmilie:

And you have to be kidding me that at ISO 800 for 1 minute you do not get noise? 30s exposure at ISO 800 produces tons of noise for the 40D as far as I've seen and experienced. Even the technicians at CPS admit that.

Noise visibility depends on the scene.

that is noise. you have way too many stars. none of the star trail photos i have seen have quite that many stars.

So, you were there in New Zealand that night with me when I gazed on the stars in the sky? :bsmilie: If you have never seen so many stars in the sky, I suggest you get out of cities more often. Here are some examples (in particular, look at CarpeyBiggs' pictures) and even more here. Stare at them and be amazed at the universe we are in.

 

[night86mare]

So, you were there in New Zealand that night with me when I gazed on the stars in the sky? :bsmilie: If you have never seen so many stars in the sky, I suggest you get out of cities more often. Here are some examples. Look at them and be amazed at the universe we are in.

...okay

and your point is?

that we should use iso800 for city shots where we can use iso 50 or iso100? you go, boy

let me ask you something. if you used iso 100 for your shot, would it have been better?

and b) can you be sufficiently sure that your stars are all stars? i don't think so either.

 

[doodah]

...okay
and your point is?

My point is you should not jump into conclusions. Open your eyes and broaden your mind.

that we should use iso800 for city shots where we can use iso 50 or iso100? you go, boy
let me ask you something. if you used iso 100 for your shot, would it have been better?

Let me reiterate, I am not fully advocating the use of high ISO all the time. If need be, just use it. ISO 100 would not necessarily be better 'cos the winds were too strong and I had problems getting everything stably mounted. I know 'cos I tried it. For that situation, ISO 800 was better. If you are truly into photography, you'll be less concerned with noise and more worried with getting the right shot.

and b) can you be sufficiently sure that your stars are all stars? i don't think so either.

Yes, I am absolutely sure of that 'cos I was there and you were not.

 

[night86mare]

If you are truly into photography, you'll be less concerned with noise and more worried with getting the right shot.



Yes, I am absolutely sure of that 'cos I was there and you were not.

and noise will sometimes give you the right shot

noise will sometimes not give you the right shot

i'd wager you won't disagree if i say high iso will give you noise, which will give you noisy landscapes, which do not work 80% of the time

so you counted every single dot in the sky

GAME ON

 

[doodah]

and noise will sometimes give you the right shot
noise will sometimes not give you the right shot

Precisely.

i'd wager you won't disagree if i say high iso will give you noise, which will give you noisy landscapes, which do not work 80% of the time

So, you are not disagreeing that it works 20% of the time. :bsmilie:

so you counted every single dot in the sky
GAME ON

Go look at where the spots occur.

 

[StarAlliance]

Hmm.. in my eyes, those speckles are 'hot pixels' instead. Why ? Logically, if they can be see in the sky that way, you will also seem the reflection of some of them on the lake surface. But I see none. :dunno:

And you have to be kidding me that at ISO 800 for 1 minute you do not get noise? 30s exposure at ISO 800 produces tons of noise for the 40D as far as I've seen and experienced. Even the technicians at CPS admit that.

I support u :thumbsup: man.

Dun believe in spending BBB to get the best toy!
Know people who earn 4K per mth and still resort to 40D only.

 

[pisduck]

those specks must be stars lah. If they are hot pixels they will occur evenly throughout they frame..... right? common sense.

 

[night86mare]

So, you are not disagreeing that it works 20% of the time. :bsmilie:

Go look at where the spots occur.

of course not,

but if you got stable tripod, iso 100 would surely give you a cleaner picture

that said, long exposure shots even at iso 100 can sometimes have noise, but only if they are not exposed properly. i wonder if there is an eventual tradeoff where it doesn't matter at all.

those specks must be stars lah. If they are hot pixels they will occur evenly throughout they frame..... right? common sense.

maybe doodah went to do selective noise reduction

 

[doodah]

that said, long exposure shots even at iso 100 can sometimes have noise, but only if they are not exposed properly. i wonder if there is an eventual tradeoff where it doesn't matter at all.

It all depends on the scene. In the following scene, I was striving for maximum depth of field (so a small aperture) but needed fast shutter speeds 'cos there was a gentle wind blowing the flowers around. So, I bumped up the ISO to 400:

Just to reiterate, I mostly do landscapes at ISO 100, like the following:

But when needed, I would bump up the ISO. Normally, the max would be ISO 400/800 for me with my current camera.

I think the 5D would have even higher tolerance???

maybe doodah went to do selective noise reduction

No, I did not. It's easy to tell the difference between stars and hot spots. The latter were colored (red, green etc) and occurred randomly throughout. I had those too. Those white stars were only confined to the blue sky areas not TOTALLY covered with clouds. Software would automatically remove those random colored spots, so it's not an issue.

 

[Danntbt]

Sir, your English more pro :bsmilie:

....thanks for the compliment sir, perhaps not quite as pro as you yet......I did not understood that all handheld night shot meant only nightscapes.....

 

[swishbrade]

Doodah. Just went through your Smug Mug album....absolutely stunning landscapes!:thumbsup: Someone should put a large format camera in your hands!

 

[solasido]

yeah, 100 time better but the price is also double.. :dunno:

the pic with lens 24 - 70 test on ISO 50.. is the picture data corrupted? how come the bottom right corner like that 1? anyway COOL 5D MK II !! the ISO performance is ****ing amazing !! lolz.. better than 50D 100 times..!!