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  4. » Test photos, Nikon D4 to ISO 204800

 
Test photos, Nikon D4 to ISO 204800...

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Test photos, Nikon D4 to ISO 204800 sent on August 25, 2012 (12:16) by JuzaPhoto Samples. 112 comments, 23108 views.

, 1/400 f/4.0, ISO 204800, hand held.

Non soffermatevi sul fatto che la foto è orrenda: è solo un TEST :-) La cosa interessante di questa immagine è che è scattata a una sensibilità pazzesca, 204800 ISO... duecentomila ISO!!! Le condizioni di luce erano tutt'altro che ottimali e ho voluto provare la D4 a una sensibilità talmente estrema che normalmente non verrebbe neppure presa in considerazione. Questo è il risultato: certamente c'è un'enorme perdita di qualità d'immagine, ma tutto sommato direi che è utilizzabile per uso giornalistico o per altri campi in cui la scena ritratta è più importante della pura qualità d'immagine. Ovviamente la foto è stata elaborata con una marcata riduzione rumore.







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avatarsupporter
sent on August 26, 2012 (13:55) | This comment has been automatically translated (show/hide original)

It 's true David but think about it, maybe under the same lighting conditions you could shoot at ISO 200 to make a portrait must stop a squirrel in caffeine and with a super telephoto: So what? So scatteresti to ISO 6400. As per my previous post, if you want a comprehensive result the behaviors of a sensor, the test must be done AT LEAST as I indicated.
;-)

avatarsupporter
sent on August 26, 2012 (14:04) | This comment has been automatically translated (show/hide original)

Add this and then I go to eat: the D4 in normal lighting conditions (eg oasis, half an hour before sunset and clear sky) to ISO 6400 and fast / very fast does not make noise. You see if you are really picky. In the dark (eg when I photograph the Milky Way) with its 6400 6/8sec exp. are quite loud, almost 2 stops worse.

So it is true that the test Juza says 50% of the behavior of this machine, but you can not say that it is wrong ...

avatarsenior
sent on August 26, 2012 (14:10) | This comment has been automatically translated (show/hide original)

Max, not tiring at all to believe what you say ... I simply pointed out that the test Juza start from a wrong assumption, namely, that those conditions were "typical" for a shot at ISO 200k ... and the fact that was not photographing a squirrel doped, it is clear that the 200k just does not serve ... ok, go to
test Juza says 50% of the behavior of this machine
. I can feel good ..:-D

avatarsenior
sent on August 26, 2012 (14:54) | This comment has been automatically translated (show/hide original)

Halving the time of exposure is equivalent to halving the amount of light radiation that strikes the sensor, halving the reggio of the diaphragm is equivalent to reduce to a quarter the amount of the same.
That the lack of light comes from "incorrect" values ??or adverse conditions snap the sensor does not change a chip.

avatarsenior
sent on August 26, 2012 (14:58) | This comment has been automatically translated (show/hide original)

@ Max, 6400 iso on a photo taken at sunset are not equal to 6400 iso with a milky way simply because the information you're interested in the Milky Way are at the bottom of the histogram (40 out of 255 in brightness, for example), area where in the photo at sunset you have shadows.
If you add that then booby picture of the Milky Way you put on a curve too contrasty, which brings you the 40/255 suggested a good 128 or more, you are in fact using a sensitivity much higher.

avatarsenior
sent on August 26, 2012 (15:21) | This comment has been automatically translated (show/hide original)

wolf're stalling
there is no question that in the photo of the test, Juza could shoot at ISO much lower, say two stops, then iso 50k, time 1/125 sec (absolutely safe) while keeping the diaphragm 4 and would get a photo correctly exposed but sparing two stop iso value ... so ... the iso 200k in those conditions were not necessary ... and then the result to 200k ISO performance is not indicative of all ...

avataradmin
sent on August 26, 2012 (15:47) | This comment has been automatically translated (show/hide original)

It 'obvious that if I took the night to 200K the yield would have been worse ... as if there was more light would be better :-)

This is a situation where at ISO 100 I had a shutter speed of 10 ", then it is very low light: as I said, absolutely realistic for a shot at 200K, the discourse of safety time is worth up to a point because, as Max pointed out if the subject was moving or with a longer focal length the 200K iso would be indispensable.

However, everyone is free to remain on their beliefs ... or better yet get a pay D4 and evaluated for your needs what are the usable sensitivity.


avatarsenior
sent on August 26, 2012 (16:02) | This comment has been automatically translated (show/hide original)

provided that no one here will question the magnificent performance of the d4 - I'm tempted to write that is the best SLR Nikon catalog but I do not want to startle Eru:-D

that being said ... "if I had shot at ISO 100 ..." and those who have never even thought about! they discussed the possibility, absolutely real, to save a couple of stops, not even shoot at ISO 11 ... 50k means having very little light (50k, that's a crazy feeling) and a torque speed / aperture that you do not leave margins , you would have found the actual behavior of the d4 to those iso

"If the subject was moving ..." but the subject is not moving! you photographed a friend "posing" sitting at a table, he was not playing ping pong and I do not think it is a squirrel caffeinomait ... according to you, therefore, we must assume the behavior of the d4 iso to 200k planning a trip completely different from what you proprosto you? So why did you posted, would have been sufficient a quick guide

avatarsenior
sent on August 26, 2012 (16:02) | This comment has been automatically translated (show/hide original)

But stalling of that!
E 'out of the question the futility of resorting to 204800 iso, obviously yes.
What I mean to say is that it is practically possible to test the high ISO of a body even on a beach at noon, whatever the cause of the lack of light hitting the sensor, it does not matter.
Quini I am responding to a question that you brought up you, that is the unreliability of the test given the amount of light that made it unnecessary to use a iso value so high.
This observation does not conflict with the first, NB.
Opposite example: 50 iso in very low light, but with large aperture and long exposure.
According to your reasoning shooting would be disadvantaged seconds do not know what ragducts.
When I then read a review or a comparison of two bodies at high iso (3200, 6400, 12800 etc ...) If you ask for that condition lights have been carried out the tests? Weighted by the event that the laboratory is put there to dim the lights to keep the same data are taken?
Juza, you in your extensive testing, have you ever done?
Clear now?

avatarsenior
sent on August 26, 2012 (16:12) | This comment has been automatically translated (show/hide original)

According to your reasoning shooting would be disadvantaged do not know what the second argument.

and why on earth should be disadvantaged! if the shot is correctly exposed would show less grain than a properly exposed shot by using a shorter time and higher iso, that's all ... now, back to us, if I can shoot at lower ISO, because the weather conditions, allow (light and subject) what sense does "force" the couple time / aperture to shoot at higher iso?, no sense, except to facilitate the sensor response to those feelings (we're still talking about shots properly exposed)

avatarsenior
sent on August 26, 2012 (16:14) | This comment has been automatically translated (show/hide original)

www.dsign-agency.com/100.jpg

5d mk3 100000 iso 1/400 sf 4

for me it is a real test ....

here with much less light .. 1/50 and f4

www.dsign-agency.com/100_2.jpg

a little more real: D

avatarsenior
sent on August 26, 2012 (16:15) | This comment has been automatically translated (show/hide original)

Would not make sense if you want to get a good shot, but if you want to test the sensor 204800 iso without necessarily waiting for the night makes absolutely no sense :)
And this does not affect the fidelity of the test.

avatarsupporter
sent on August 26, 2012 (16:16) | This comment has been automatically translated (show/hide original)

@ Max, 6400 iso on a photo taken at sunset are not equal to 6400 iso with a milky way simply because the information you're interested in the Milky Way are at the bottom of the histogram (40 out of 255 in brightness, for example ), the area where the photo at sunset you have shadows.
If you add that then booby picture of the Milky Way you put on a curve too contrasty, which brings you the 40/255 suggested a good 128 or more, you are in fact using a sensitivity much higher.


No wolf is not all there and the Milky Way is just one example. An exposure time of 1/1200 gives different results from 10 Sec at equal ISO and diaphragms, both from the side of the etched detail, which by the noise, even if the amount of light that ultimately reaches the sensor &egrave, that ...

avatarsupporter
sent on August 26, 2012 (16:25) | This comment has been automatically translated (show/hide original)

Having said that no one here will question the magnificent performance of the d4 - I'm tempted to write that this is the best Nikon SLR in the catalog but I do not want to startle Eru mrgreen

that being said ... "if I had shot at ISO 100 ..." and those who have never even thought about! they discussed the possibility, absolutely real, to save a couple of stops, not even shoot at ISO 11 ... 50k means having very little light (50k, that's a crazy feeling) and a torque speed / aperture that you do not leave margins , you would have found the actual behavior of the d4 to those iso

"If the subject was moving ..." but the subject is not moving! you photographed a friend "posing" sitting at a table, he was not playing ping pong and I do not think it is a squirrelcaffeinomane ... according to you, therefore, we must assume the behavior of the d4 iso to 200k planning a trip completely different from what you proprosto you? So why did you posted, would have been sufficient a quick guide
?


But David did you understand what I wrote? Maybe not. I do not understand your objection. My speech meant that NOT 'TRUE that this test shows absolutely the behavior of D4 to 204K! And who cares if at that time and with that light and that person (who was not posing: fconfuso :: :: fconfuso fconfuso :) you could use different shutter speed and aperture!! We understand! In the same light conditions you could need to take even 1/2000, right? It is not that the light conditions when you will need to do portraits! It 'sa light conditionslow, as well as here you will also find when you really serve F4 and 1/400.
Then we get all Juza that if he wanted to make a real ritrato natural light would have taken to 12800 or 6400 and not a 204K, in this particular occasion.

avatarsenior
sent on August 26, 2012 (16:30) | This comment has been automatically translated (show/hide original)

2F400? But when ever ... No one would have done if not for an error. And this is the truth. Above all, I take a table with a 300 f4? unlikely ... ie, this is not an example that can be used in order to generalize a certain type of behavior of the iso 200k.
high iso and fast times you use them for example in a Street with moving subject with a subject that can not be photographed, a greater distance from camera to subject, theater etc etc ... then there is that even in light can not extreme giustifcare certain iso to reach a time adequate security.

Test at the Max, how to properly say often, deserves the night shot at ISO 100 with 10 seconds of exposure and passes ...

Unfortunately, it is no getting around it. These are not good examples. Cos & igraI, as puzzle me these tests extemporaneous made almost at random. I still remember the test di5d3, 5d2 and d800 tested in house and from there show that at high iso the 5D3 improved by half a stop compared to the 5d2 (when in another 3d Juza months ago talked of a stop and a half) .. to such a conclusion is clear, therefore, that with the 5D3 there are tangible benefits vs 5d2 at high iso. What false because in reality, when the light goes down, x various reasons, the 5D3 can make the most of the sensor with unimaginable results with the 5d2 ...
I have the impression of seeing commercials that are not really information. But obviously this is just my impression ..

Then we all Juza that if he wanted to make a real ritrato natural light would have taken to 12800 or 6400 and not at 204K, in this particular octunity.

this is where Max had to do so ... we must not theory, but practice ;-)
changes if you use other lenses presumably because contexts change and distances from the subject ...
from a single case, questionable for another, I can not draw universal conclusions , valid at different lenses and other conditions ...

avatarsupporter
sent on August 26, 2012 (16:31) | This comment has been automatically translated (show/hide original)

and why it should never be at a disadvantage! if the shot is correctly exposed would show less grain than a properly exposed shot by using a shorter time and higher iso, that's all ... now, back to us, if I can shoot at lower ISO, because the weather conditions, allow (light and subject) what sense does "force" the couple time / aperture to shoot at higher iso?, no sense, except to facilitate the sensor response to those feelings (we're still talking about shots properly exposed)
ù


But it is not true!! Look, in this specific case it is true that he could use lower ISO because he had enough light for the times that he could use, but then again, foronce again, that there probably will be found with exactly the same amount of light in a time when you will have to freeze a fast moving or you will be using a super telephoto or both, and then you shoot like he did! And you'll get results THESE!

avatarsupporter
sent on August 26, 2012 (16:37) | This comment has been automatically translated (show/hide original)

I would say that David was very clear.
In any casonessuno calls into question the quality of d4 ... the same thing I would have done if it had been done with the 1dx ... in fact more than once I asked for samples to happy owners of 1dx in various 3d were made to high iso to iso used under appropriate conditions. (Since you saw iso 6400 and similar times of day with 1/8000 ....)

Juza save to say that you took with "low light" is not enough. It was not adequate light so that in reality one would choose 200k iso. stop. No reportage would have done ...

Max real time and the speech of the shake but we're to tell between "experts" in a portrait on a table (which will presumably Juza was also supported) with a fairly short focal avremmchosen or 1/400? But when ever ... No one would have done if not for an error. And this is the truth. Above all, I take a table with a 300 f4? unlikely ... ie, this is not an example that can be used in order to generalize a certain type of behavior of the iso 200k.
high iso and fast times you use them for example in a Street with moving subject with a subject that can not be photographed, a greater distance from camera to subject, theater etc etc ... then there is that even in light can not extreme giustifcare certain iso to reach a time adequate security.

Test at the Max, how to properly say often, deserves the night shot at ISO 100 with 10 seconds of exposure and passes ...

Unfortunately, it is no getting around it. These are not good examples.3Cbr /> In this specific case it was not necessary to use those iso to obtain a photo stops. So far all agree. But to say that a 204K iso you would only be triggered lighting conditions lower than this is a tad big as a house!! you understand?

avatarsupporter
sent on August 26, 2012 (16:38) | This comment has been automatically translated (show/hide original)

Max real time and the speech of the shake but we're to tell between "experts" in a portrait on a table (which will presumably Juza was also supported) with a focal length short enough we would have chosen 1/400? But when ever ... No one would have done if not for an error. And this is the truth. Above all, I take a table with a 300 f4? unlikely ... ie, this is not an example that can be used in order to generalize a certain type of behavior of the iso 200k.
high iso and fast times you use them for example in a Street with moving subject with a subject that can not be photographed, a greater distance from camera to subject, theater etc etc ... then there is that even in light can not extreme giustifcare certain iso to reach a time adequate security.



avatarsupporter
sent on August 26, 2012 (16:41) | This comment has been automatically translated (show/hide original)

this is where Max had to do so ... we must not theory, but practice ;-)
changes if you use other lenses presumably because contexts change and distances from the subject ...
from a single case, questionable for another, you can draw universal conclusions are valid at the change of lenses and other conditions ...


But no one doubts, and Juza did not claim this for sure. But you can not say that the result is unreliable and insignificant, why, and n'altra time, who tells you that you will not have 1000 royal occasions of having to shoot at 1/400 f4 in a state of light like this?

avatarsenior
sent on August 26, 2012 (16:43) | This comment has been automatically translated (show/hide original)

Of course I am serious .. and it was clear they were your assumptions "the absurd." But the question is: did you read carefully my reasoning and arguments?
In fact, I specified that there 200k shots only at night but also in terms of more or less low light and fast times in certain types of shooting. (But I repeat myself since I've done that) ...

We are talking about portrait at a table in 1/400 and f4 with 200k iso ... and this claim to draw general conclusions ... Do you realize Max?

;-)


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