Forum Übersicht - DSLR-A900 » Michael Reichmann: Antarktis-Expedition mit A900

Hallo,

wie Ihr vermutlich mitbekommen habt, hat Michael Reichmann (von Luminous Landscape) eine Sony Alpha DSLR-A900 auf seine Antarktis-Fotoexpedition (2009-01-07/26) mitgenommen. Seit ein paar Tagen ist er nun wieder zurück in Kanada und berichtet ab sofort von seinen Erfahrungen. Bisher ist noch nicht viel zu sehen, aber er will sukzessive mehr Bilder und Informationen einstellen:

http://www.luminous-landscape.com/location...portfolio.shtml
http://www.luminous-landscape.com/essays/q...-vs-value.shtml

Siehe auch:

http://www.dyxum.com/dforum/forum_posts.asp?TID=41768
http://luminous-landscape.com/forum/index...&p=255701

Viele Grüße,

Matthias

Michael Reichmanns Ausfallstatistik während seiner Antarktisreise:

http://www.luminous-landscape.com/essays/a...09-worked.shtml "What worked - and what didn't"

Sein DSLR-Equipment auf der Tour:
ZITATSince I purchased a two-body seven-lens Sony A900 system some months ago for long-term testing this was my main squeeze for this expedition, and was used for more than 4,500 of the roughly 6,500 frames taken during the three weeks in Argendina and Antarctica.

Both of the cameras and all lenses performed flawlessly, without any hiccups, in all sorts of weather and shooting conditions. I won't write much more about the A900 as I have already written more than enough on these pages about this exciting new camera over the past couple of months. My overall impressions continue to be very positive, but with a couple of caveats.

Though the DxOMark database now confirms that the D3x has a one stop advantage at higher ISOs over the A900, which was also verbally confirmed on this trip by one of the industry's leading authorities on raw processing, I still sometimes end up seeing higher noise from the A900 than I would care for. It's strange, because I have some ISO 800 frames (see below) that are essentially noise free, and yet others at ISO 200 that seem to have a bit more texture to them than they should. Curious.
[...]
The Sony and Zeiss lenses continue to please, and the Sony 70-300mm f/4.5-5.6 G was my most used lens by far, for shooting not only from the ship but also from Zodiacs and onshore. This is my personal favourite focal range, and this lens is about as fine as I've used at these focal lengths. I also had along and occasionally used the Sony 70-200mm f/2.8 G, and while a very fine lens I found that I used the slightly longer 70-300mm not only because of its greater range but also lighter weight.

I had along the Sigma 12-24mm and 50-500mm and will have a separate review of them here soon. The shorter lens didn't get much use, but the 50-500mm was used extensively from the deck of the ship for distant vistas, and when combined with the in-body stabilization of the A900 performed very well indeed in this role.
[...]
Canon had loaned me a 5D MKII which my business partner Chris Sanderson intended to also use to shoot a video documentary on our trip, but regrettably it failed in the rain on our first day ashore. Chris will report on this experience soon. Regular contributor Nick Devlin was along with his own new 5D MKII, which worked in the rain and humidity on this trip without problem. His report will appear here soon as well.

Just prior to leaving home Nikon came though with a D3x for my use and I will again have a report here in by mid-February. Briefly though, it performed flawlessly, and image quality is superb.[/quote]
Die eher harmlosen Wetterbedingungen:
ZITATShooting conditions were mostly benign, though we did have light rain on a couple of days early-on during some shore landings, and salt spray was always an issue. Temperatures were moderate, ranging from about +2C to -3C during our two weeks at the Peninsula. Since it was -30C in Toronto for a few days during that time, Antarctica was positively balmy by comparison.[/quote]
Die erschreckende Bilanz:
ZITATFailures

In a summary session on the last day at the Peninsula I asked everyone to report on any equipment failures. Here's the tally.

The top LCD on a 5D MKII spontaneously cracked; Another 5D MKII had a jambed on lens caused by a loose screw, a 1Ds MKIII reported intermittent problems; a 1D MKIII kept reporting Error 99; one Hasselblad reported electronic lens connection problems; two Canon G9's failed (no G10s had any reported problems), and a Nikon 80-400mm lens came apart. No Nikon bodies (mostly D700s) failed in any way.

The largest group of failures through were among the Canon 5D MKIIs. Of the 26 samples of this camera onboard, one quarter (six) failed at one time or another, and while three recovered, the other three never did. In all cases it appeared to be water or humidity damage. Of particular concern were two cameras which stopped working while completely protected within Kata rain covers during a light rain ashore. They came back to life the following day though and were mostly fine for the rest of the trip, but one died permenently just before the end of our voyage.

Several people noted that when returning to the ship after working in light rain 5D MKIIs with vertical battery grips tended to collect water in between the grip and the base – something that may have been the cause of some of the failures.

I should note that the 5D MKII's are not rated as weather resistant, but then neither are the Sony A900's. I deliberately allowed both of my A900 bodies be exposed to the rain for two days ashore to see how they would stand up. There were no operational difficulties. I also have used the Sonys back here in Toronto in snow storms, (unprotected), both before and after the Antarctic trip, with no ill effects. Though also not claimed as weather sealed, they appear to be as well protected as any other camera I've ever used.

As for the failed Canon 5D MKIIs, I hope that expedition members will report back to me with what Canon service has to say about what happened to them. As for the loaner that we had, Canon says that it was a unit that had been in circulation for testing prior to coming my way and it might have suffered some water damage previously.

I don't know what conclusions should be drawn from this high percentage of 5D MKII failures. All I can do is report on the facts of the matter. As for the weather during which most of the failures happened, it was no worse than a drizzly day in winter in New York or Berlin. Nothing Antarctic about it at all.[/quote]

Siehe auch:

http://www.luminous-landscape.com/essays/q...-vs-value.shtml
http://www.mi-fo.de/forum/index.php?s=&...st&p=239752
http://www.sonyuserforum.de/forum/showthread.php?t=65953

Es beruhigt, daß auch andere Leute Probleme mit 5D MkII-Ausfällen haben. Da fühlt man sich nicht mehr so alleine.

Du Canon?

ZITAT(ingobohn @ 2009-02-08, 9:35) Du Canon?[/quote]
Wieso nicht?
(Leihweise... ardon: )