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Szukam i szukam i znaleźć nie mogę...stąd moje pytanie czy w instrukcji do 5d mark II (pytanie do tych co już z niego korzystają) jest gdzieś napisane jakiej minimalnej szybkości karty CF można w nim stosować aby zarówno robić zdjęcia jak i spokojnie nagrywać filmy hd? Jeśli gdzieś jest odpowiedź na moje pytanie to uprzejmie proszę jedynie o linka.
Znalazłem coś takiego: http://www.robgalbraith.com/bins/cam...?cid=6007-9784 gdzie przy zapisie plików RAW maksymalny transfer osiągnięto na poziomie 32,6MB/s, ale to tylko jedna strona medalu. Pytanie o minimum - oczywiście można inwestować w drogie karty, ale chodzi o zoptymalizowanie tej inwestycji. Czy "dolne" osiągi z tego linka (3,2MB/s) należy też uznać jako poprawnie działające przy zarówno filmowaniu jak i zwykłym choć intensywnym robieniu zdjęć np. seryjnych?
Tutaj: http://photo.net/equipment/canon/5D-mkII/review/
znalazłem ciekawy wpis:
Operational Speed
Using a Sandisk Extreme III CF card (30 MB/s), in JPEG mode with the shutter speed set to 1/500s and focus set to manual, I gave up after shooting continuously for 100 seconds with an average shot to shot spacing of 0.26 seconds (just ober 3.8 frames/second). That’s about 385 frames. Canon quotes a buffer size of 78 frames for a non-UDMA card (though they don’t seem to specify a card speed). The 30MB/s Sandisk extreme III cards are not marked as being UDMA compliant, however it’s my understanding that they are, and the unlimited buffer capacity would seem to confirm this. For all practical purposes this means that you’re not going to fill the buffer under these conditions. In RAW mode, the frame rate was the same 3.8 fps, but the buffer did fill after 16 frames after which the frame to frame spacing increased to 0.76 seconds (1.32 frames/sec),
ISO affects buffer size and frame rate after the buffer fills. At an ISO setting of 25600 (H2), in RAW mode the 5D MkII shot 10 frames in 2.36 seconds, which is an average shot to shot spacing of 0.26 seconds, again corresponding to just over 3.8 frames/sec. After 10 frames, the shot to shot spacing increased to 1.46 seconds or 0.69 frames/sec. When shooting JPEGs with the same CF card and shutter speed, the buffer filled after 24 frames at an average frame spacing of 0.26 seconds (3.8 frames/sec), after which the frame to frame spacing increased to an average of 0.53 seconds (1.9 frames/sec).
Though I didn’t attempt to measure it, Canon quote a “startup” time of 0.1s for the EOS 5D MkII. That’s seems reasonable since there is really no detectable time lag between turning on the camera and it being ready to take a shot.
Czyżby więc karty o zapisie 30MB/s spokojnie wystarczyły? Czy to może jednak być troszkę mniej?
Już prawie znalazłem - tutaj: http://www.usa.canon.com/dlc/control...articleID=2186
stoi tak:
Choosing a Storage Device
Normally, movie clips captured by the EOS 5D Mark II are stored in the camera using a CompactFlash memory card with a data transfer speed of at least 8MB per second. Most currently sold CF cards are at least that fast, but for best results we recommend the use of UDMA-compliant4 CF cards, which tend to be much faster than 8MB/sec. The camera itself is compatible up to UDMA Mode 6, which represents a maximum data transfer rate of 133MB/sec., although the fastest cards available as of September, 2008 are in the range of approximately 45MB/sec.
Ale pytanie do posiadaczy tego modelu: jaką szybkość byście polecili jako minimalną (bez przepłacania za wodotryski) do codziennej pracy?
Znalazłem coś takiego: http://www.robgalbraith.com/bins/cam...?cid=6007-9784 gdzie przy zapisie plików RAW maksymalny transfer osiągnięto na poziomie 32,6MB/s, ale to tylko jedna strona medalu. Pytanie o minimum - oczywiście można inwestować w drogie karty, ale chodzi o zoptymalizowanie tej inwestycji. Czy "dolne" osiągi z tego linka (3,2MB/s) należy też uznać jako poprawnie działające przy zarówno filmowaniu jak i zwykłym choć intensywnym robieniu zdjęć np. seryjnych?
Tutaj: http://photo.net/equipment/canon/5D-mkII/review/
znalazłem ciekawy wpis:
Operational Speed
Using a Sandisk Extreme III CF card (30 MB/s), in JPEG mode with the shutter speed set to 1/500s and focus set to manual, I gave up after shooting continuously for 100 seconds with an average shot to shot spacing of 0.26 seconds (just ober 3.8 frames/second). That’s about 385 frames. Canon quotes a buffer size of 78 frames for a non-UDMA card (though they don’t seem to specify a card speed). The 30MB/s Sandisk extreme III cards are not marked as being UDMA compliant, however it’s my understanding that they are, and the unlimited buffer capacity would seem to confirm this. For all practical purposes this means that you’re not going to fill the buffer under these conditions. In RAW mode, the frame rate was the same 3.8 fps, but the buffer did fill after 16 frames after which the frame to frame spacing increased to 0.76 seconds (1.32 frames/sec),
ISO affects buffer size and frame rate after the buffer fills. At an ISO setting of 25600 (H2), in RAW mode the 5D MkII shot 10 frames in 2.36 seconds, which is an average shot to shot spacing of 0.26 seconds, again corresponding to just over 3.8 frames/sec. After 10 frames, the shot to shot spacing increased to 1.46 seconds or 0.69 frames/sec. When shooting JPEGs with the same CF card and shutter speed, the buffer filled after 24 frames at an average frame spacing of 0.26 seconds (3.8 frames/sec), after which the frame to frame spacing increased to an average of 0.53 seconds (1.9 frames/sec).
Though I didn’t attempt to measure it, Canon quote a “startup” time of 0.1s for the EOS 5D MkII. That’s seems reasonable since there is really no detectable time lag between turning on the camera and it being ready to take a shot.
Czyżby więc karty o zapisie 30MB/s spokojnie wystarczyły? Czy to może jednak być troszkę mniej?
Już prawie znalazłem - tutaj: http://www.usa.canon.com/dlc/control...articleID=2186
stoi tak:
Choosing a Storage Device
Normally, movie clips captured by the EOS 5D Mark II are stored in the camera using a CompactFlash memory card with a data transfer speed of at least 8MB per second. Most currently sold CF cards are at least that fast, but for best results we recommend the use of UDMA-compliant4 CF cards, which tend to be much faster than 8MB/sec. The camera itself is compatible up to UDMA Mode 6, which represents a maximum data transfer rate of 133MB/sec., although the fastest cards available as of September, 2008 are in the range of approximately 45MB/sec.
Ale pytanie do posiadaczy tego modelu: jaką szybkość byście polecili jako minimalną (bez przepłacania za wodotryski) do codziennej pracy?
.
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