Un peu de pub pour son matériel à la fin.
jeudi 12 avril 2012
mardi 10 avril 2012
Problème exposition longues ?
Relevé sur Internet
http://emmanuelcoupe.wordpress.com/2012/04/04/nikon-d800-long-exposures-issues/
All of sudden I was struck by a galaxy of white little dots, appearing in smooth tonal areas like the water and sky. This effect was confirmed again and again in all the long exposures that I looked at. Starting with 30sec exposures that had the issue present in smaller amount all the way to 5 minutes exposures when the white dot syndrome would multiply by the hundreds.
http://emmanuelcoupe.files.wordpress.com/2012/04/dsc0629.jpg
http://emmanuelcoupe.files.wordpress.com/2012/04/dsc0629-100crop1.jpg
From what the photographer told me noise reduction was OFF. Mostly because it is unpractical to wait double the time of the exposure but also because for these rather short long exposures, this type of noise was not anticipated.
K. Vasilakis, one of the photographers who did the test shooti informed me that using RAWTherapee resolves the white dot issue without him noticing any degradation on the image quality.
Here is the link and it’s free: http://rawtherapee.com/
http://emmanuelcoupe.wordpress.com/2012/04/04/nikon-d800-long-exposures-issues/
All of sudden I was struck by a galaxy of white little dots, appearing in smooth tonal areas like the water and sky. This effect was confirmed again and again in all the long exposures that I looked at. Starting with 30sec exposures that had the issue present in smaller amount all the way to 5 minutes exposures when the white dot syndrome would multiply by the hundreds.
http://emmanuelcoupe.files.wordpress.com/2012/04/dsc0629.jpg
http://emmanuelcoupe.files.wordpress.com/2012/04/dsc0629-100crop1.jpg
From what the photographer told me noise reduction was OFF. Mostly because it is unpractical to wait double the time of the exposure but also because for these rather short long exposures, this type of noise was not anticipated.
K. Vasilakis, one of the photographers who did the test shooti informed me that using RAWTherapee resolves the white dot issue without him noticing any degradation on the image quality.
Here is the link and it’s free: http://rawtherapee.com/
Le D800 vu par un canoniste - Paul Ward
Le D800 se faisant attendre, il ne reste que le net pour se faire une idée de cet appareil.
http://www.ephotozine.com/article/nikon-d800---from-a-canon-users-perspective--18927
Tout de suite la conclusion ;-)
To me, this camera is essentially the one I’d been hoping Canon would release for over a year now! Good image size, decent ISO performance, nice video capabilities and at a very reasonable price for the specs, it just happens to be a different manufacturer.
Point intéressant sur le flux de travail et la conséquence du poids des fichiers
What’s interesting is that now I own one, I’ve found that I’m not shooting with the Nikon all the time... I did a shoot for a web based fashion label yesterday and because they were going to use the images in a smaller format, and taking into account the longer processing times for the large Nikon files, I actually decided to use my old Canon for the job instead.
Quelques points de l'article
But when Nikon announced the D800 specs I just couldn’t resist.
However, I have done a few images that could have really done with being shot on a larger format, like one of the digital medium format systems, and this is where the Nikon could really have been useful.
Obviously it’s going to take a while to get used to some of the controls.
Also I’ve found that the zoom function itself that aids with focusing when using the live view mode is pretty awful compared to Canon's system.
However, what I do really like is that they’ve included a dedicated switch for the video and live view modes similar to the one on the Canon EOS 7D, which makes switching from picture to video mode an absolute breeze.
Well I’m happy to say that my initial experiments with the D800 video mode seem to be holding up well compared to my 5D Mk2. I recently shot a complete music video on the D800 which looks pretty good and even did some test footage at ISO640 with the D800 and the 5D Mk2 side by side, and both cameras seemed pretty evenly matched on both image quality and ISO noise levels.
Photo 7D
Photo D800
ISO seems pretty good too.Yes, I know it’s not going to do the very high ISOs particularly well, but to be honest I’ve never really found the need to shoot anything much above ISO1600 anyway, so it’s probably not going to be huge problem for me in that respect.
http://www.ephotozine.com/article/nikon-d800---from-a-canon-users-perspective--18927
Tout de suite la conclusion ;-)
To me, this camera is essentially the one I’d been hoping Canon would release for over a year now! Good image size, decent ISO performance, nice video capabilities and at a very reasonable price for the specs, it just happens to be a different manufacturer.
Point intéressant sur le flux de travail et la conséquence du poids des fichiers
What’s interesting is that now I own one, I’ve found that I’m not shooting with the Nikon all the time... I did a shoot for a web based fashion label yesterday and because they were going to use the images in a smaller format, and taking into account the longer processing times for the large Nikon files, I actually decided to use my old Canon for the job instead.
Quelques points de l'article
But when Nikon announced the D800 specs I just couldn’t resist.
However, I have done a few images that could have really done with being shot on a larger format, like one of the digital medium format systems, and this is where the Nikon could really have been useful.
Obviously it’s going to take a while to get used to some of the controls.
Also I’ve found that the zoom function itself that aids with focusing when using the live view mode is pretty awful compared to Canon's system.
However, what I do really like is that they’ve included a dedicated switch for the video and live view modes similar to the one on the Canon EOS 7D, which makes switching from picture to video mode an absolute breeze.
Well I’m happy to say that my initial experiments with the D800 video mode seem to be holding up well compared to my 5D Mk2. I recently shot a complete music video on the D800 which looks pretty good and even did some test footage at ISO640 with the D800 and the 5D Mk2 side by side, and both cameras seemed pretty evenly matched on both image quality and ISO noise levels.
Photo 7D
Photo D800
ISO seems pretty good too.Yes, I know it’s not going to do the very high ISOs particularly well, but to be honest I’ve never really found the need to shoot anything much above ISO1600 anyway, so it’s probably not going to be huge problem for me in that respect.
jeudi 5 avril 2012
Plus de détails pour le problème de focus de Ming Thein
blog.mingthein.com
Pas très encourageant tout ça. Je vous conseille de lire la partie objectifs. Je suis d'un côté content de voir que mon 24-70 et le 70-200 sont excellents mais un peu moins pour le 14-24.
I spent the morning at Nikon. Ostensibly, to collect my replacement D800, and a PC-E 85/2.8 Micro. However, it turns out the replacement D800 exhibits the SAME autofocus issue.
There were more surprises in store, though – specifically, with lenses.
AFS 14-24/2.8 G: Not good at 14mm
AFS 24-70/2.8 G: Sharp everywhere in the range
AFS 70-200/2.8 G VR II: Sharp everywhere in the range, at every aperture.
AFS 85/1.4 G: Inconsistent.
AFS 35/1.4 G: No good wide open.
AFS 85/1.8 G: Incredible.
If you plan on getting the most out of your D800/D800E, you’re going to have to rethink your lens lineup.
I think this latest push in resolution has brought up manufacturing tolerance and QC issues that were never previously noticeable.
It’s not ideal, but when you get everything right, the D800 is capable of delivering pretty darn amazing image quality. The trouble is, once you’ve seen it, you really don’t want to give it up – even if it is a colossal pain to achieve. Of course, none of this will be news to seasoned medium or large format shooters – but for anybody expecting to go from a DX consumer body, or even 12MP FX, to D800 and get pixel-level crispness across the frame, there’s going to be something of a steep learning curve to climb. MT
Venant d'un DX, il commence à me faire peur ;-)
Pas très encourageant tout ça. Je vous conseille de lire la partie objectifs. Je suis d'un côté content de voir que mon 24-70 et le 70-200 sont excellents mais un peu moins pour le 14-24.
I spent the morning at Nikon. Ostensibly, to collect my replacement D800, and a PC-E 85/2.8 Micro. However, it turns out the replacement D800 exhibits the SAME autofocus issue.
There were more surprises in store, though – specifically, with lenses.
AFS 14-24/2.8 G: Not good at 14mm
AFS 24-70/2.8 G: Sharp everywhere in the range
AFS 70-200/2.8 G VR II: Sharp everywhere in the range, at every aperture.
AFS 85/1.4 G: Inconsistent.
AFS 35/1.4 G: No good wide open.
AFS 85/1.8 G: Incredible.
If you plan on getting the most out of your D800/D800E, you’re going to have to rethink your lens lineup.
I think this latest push in resolution has brought up manufacturing tolerance and QC issues that were never previously noticeable.
It’s not ideal, but when you get everything right, the D800 is capable of delivering pretty darn amazing image quality. The trouble is, once you’ve seen it, you really don’t want to give it up – even if it is a colossal pain to achieve. Of course, none of this will be news to seasoned medium or large format shooters – but for anybody expecting to go from a DX consumer body, or even 12MP FX, to D800 and get pixel-level crispness across the frame, there’s going to be something of a steep learning curve to climb. MT
Venant d'un DX, il commence à me faire peur ;-)
mardi 3 avril 2012
NIKON MB-D12 (VFC00201)
Il semblerait que la poignée MB-D12 conçue pour le D800 soit arrivée en magasin dans certains pays.
Avant de recevoir votre D800, vous pouvez toujours vous amuser avec.
By adding the MB-D12, the D800 increases to 6 fps continuous shooting in DX mode. It features magnesium alloy construction and is fully weather sealed like the D800 body. The grip has additional controls for vertical orientation shooting: shutter release button, AF-ON button and a multi-selector dial. The grip includes a battery holder for 8 AA batteries as well as a holder for the Nikon EN-EL15 or EN-EL18 battery packs.
Vu à plus de 370.- sur toppreise.ch
Avant de recevoir votre D800, vous pouvez toujours vous amuser avec.
By adding the MB-D12, the D800 increases to 6 fps continuous shooting in DX mode. It features magnesium alloy construction and is fully weather sealed like the D800 body. The grip has additional controls for vertical orientation shooting: shutter release button, AF-ON button and a multi-selector dial. The grip includes a battery holder for 8 AA batteries as well as a holder for the Nikon EN-EL15 or EN-EL18 battery packs.
Vu à plus de 370.- sur toppreise.ch
Soucis avec des cartes mémoires
Gros buzz concernant les cartes mémoires compatibles avec le D800.
Pour rappel, voici la liste des cartes SD acceptées selon Nikon:
et les cartes CF:
des cartes CF qui posent problème:
Kingston Ultimate 16GB 600x CF card
Kingston Ultimate 32GB 600x CF card
Kingston Ultimate 32GB 266X CF card
Duracell High Speed 32GB 600x CF card
ProMaster UltraMax 16GB CF card
Hama High Speed Pro 8GB CF card
Pour rappel, voici la liste des cartes SD acceptées selon Nikon:
| Manufacturer | SD | SDHC | SDXC |
| SanDisk | 2 GB | 4 GB, 8 GB, 16 GB, 32 GB | 64 GB |
| Toshiba | 2 GB | 4 GB, 8 GB, 16 GB, 32 GB | 64 GB |
| Panasonic | 2 GB | 4 GB, 6 GB, 8 GB, 12 GB, 16 GB, 24 GB, 32 GB |
48 GB, 64 GB |
| Lexar Media | 2 GB | 4 GB, 8 GB, 16 GB | |
| Lexar Media Platinum II & Professional | 2 GB | 4 GB, 8 GB, 16 GB, 32 GB | |
| Lexar Media Full-HD Video | 4 GB, 8 GB, 16 GB |
et les cartes CF:
| Card | Name | Speed | Stroage size |
| SanDisk | Extreme Pro | SDCFXP | 16 GB, 32 GB, 64 GB, 128 GB |
| Extreme | SDCFX | 8 GB, 16 GB, 32 GB | |
| Extreme IV | SDCFX4 | 2 GB, 4 GB, 8 GB, 16GB | |
| Extreme III | SDCFX3 | 2 GB, 4 GB, 8 GB, 16GB | |
| Extreme II | SDCFH | 2 GB, 4 GB, 8 GB | |
| Standard | SDCFB | 2 GB, 4 GB | |
| Lexar Media | Professional UDMA | 600 X | 8 GB, 16 GB, 32 GB |
| 400 X | 8 GB, 16 GB, 32 GB | ||
| 300 X | 2 GB, 4 GB, 8 GB, 16 GB | ||
| Professional | 233 X | 2 GB, 4 GB, 8 GB | |
| 133 X | 2 GB, 4 GB, 8 GB | ||
| 80 X | 2 GB, 4 GB | ||
| Platinum II | 80 X | 2 GB, 4 GB, 8 GB, 16GB | |
| 60 X | 4 GB |
des cartes CF qui posent problème:
Kingston Ultimate 16GB 600x CF card
Kingston Ultimate 32GB 600x CF card
Kingston Ultimate 32GB 266X CF card
Duracell High Speed 32GB 600x CF card
ProMaster UltraMax 16GB CF card
Hama High Speed Pro 8GB CF card
lundi 2 avril 2012
Tests du mode vidéo
Les test du mode vidéo arrivent petit à petit
02.04.2012
www.lemondedelaphoto.com
De nombreux cameramen désireux de filmer avec un plein format seront séduits par les performances du D4 et D800. D’autant que la gamme d’optiques Nikkor n’a pas grand-chose à envier à celle de Canon. Mais cette dernière a pris beaucoup d’avance avec le 5D Mark II dans le domaine de la vidéo professionnelle. Une aura renforcée par le fait que contrairement à Nikon, Canon fabrique depuis longtemps des caméscopes. Quant aux photojournalistes ou photographes freelance désireux de fournir des séquences animées en plus de leurs images, ils devront investir dans quelques accessoires indispensables pour réaliser des tournages de qualité (Follow-Focus, rotule vidéo, viseur externe, rig).
www.dslrnewsshooter.com
Essentially the output from the D800 and 5D mkIII is very close. I would give it to Nikon for sharpness and the addition of the crop mode. The Canon has a clear win in terms of moire and low light performance. Personally I prefer the control layout and the colour rendition from the Canon (especially under mixed lighting) – others may prefer the Nikon.
For an all-round camera for video the 5D mkIII would suit my needs best. Moire is the main factor in this; even though the Nikon is a bit sharper, the moire is too noticeable in many shots for my taste. I would not be happy using the D800 as my only camera as I quite often have to shoot wide scenes with lots of detail. If the D800 can be modified using Picture Control to give me an image closer matching the Canon C300 or the Sony F3 I would seriously consider getting one for B-cam use. I would use it for shots where the sharpness is a benefit and moire is not an issue.
28.04.2012
gizmodo.com
Un article avec des vidéos de comparaison y compris avec des ISO différents.
02.04.2012
www.lemondedelaphoto.com
De nombreux cameramen désireux de filmer avec un plein format seront séduits par les performances du D4 et D800. D’autant que la gamme d’optiques Nikkor n’a pas grand-chose à envier à celle de Canon. Mais cette dernière a pris beaucoup d’avance avec le 5D Mark II dans le domaine de la vidéo professionnelle. Une aura renforcée par le fait que contrairement à Nikon, Canon fabrique depuis longtemps des caméscopes. Quant aux photojournalistes ou photographes freelance désireux de fournir des séquences animées en plus de leurs images, ils devront investir dans quelques accessoires indispensables pour réaliser des tournages de qualité (Follow-Focus, rotule vidéo, viseur externe, rig).
www.dslrnewsshooter.com
Essentially the output from the D800 and 5D mkIII is very close. I would give it to Nikon for sharpness and the addition of the crop mode. The Canon has a clear win in terms of moire and low light performance. Personally I prefer the control layout and the colour rendition from the Canon (especially under mixed lighting) – others may prefer the Nikon.
For an all-round camera for video the 5D mkIII would suit my needs best. Moire is the main factor in this; even though the Nikon is a bit sharper, the moire is too noticeable in many shots for my taste. I would not be happy using the D800 as my only camera as I quite often have to shoot wide scenes with lots of detail. If the D800 can be modified using Picture Control to give me an image closer matching the Canon C300 or the Sony F3 I would seriously consider getting one for B-cam use. I would use it for shots where the sharpness is a benefit and moire is not an issue.
28.04.2012
gizmodo.com
Un article avec des vidéos de comparaison y compris avec des ISO différents.
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