Timeline for Should I get a fast CF card?
Current License: CC BY-SA 3.0
9 events
| when toggle format | what | by | license | comment | |
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| Jan 21, 2021 at 20:25 | vote | accept | abbe | ||
| Oct 7, 2011 at 8:04 | comment | added | abbe | Thanks everyone for the replies. I just noticed my Camera came with an 4 GB Ultra card, I guess I should have noticed that earlier. Anyways, the current card hasn't bothered me at all other than filling up quickly. So, for now I'm planning to go with an Ultra card, and only upgrade when I notice slowness. And most of the images I clicked are sized 27-28 MB (RAW+JPEG maximum size), and I didn't notice any slowness issues with taking exposure bracketed shots. | |
| Oct 6, 2011 at 19:39 | comment | added | Steve Ross | Nevertheless, your point should remain undiminished: The cards fill up quickly. whether it's 22MB or 25MB. I don't want that lost in the discussion. | |
| Oct 6, 2011 at 17:36 | comment | added | dpollitt | Ok Steve. They were right on for the Canon 40D that I use, so your assumption that the studio shots they use are much more complex and that is how they get the file size figures may not always be correct. | |
| Oct 6, 2011 at 17:03 | comment | added | Steve Ross | Oops. Hit enter too early. That is based on a fairly large sample of images. Canon's RAW images are compressed, but the amount varies among images, depending on the complexity. DPReview tends to shoot much more complex images than are typical -- especially in my experience -- which is why I cite the 22MB number. | |
| Oct 6, 2011 at 16:51 | comment | added | Steve Ross | It's an 18 megapixel sensor as compared to a 21 megapixel sensor on the 5DMII or 1DsMIII. The dppreview studio shots are extremely complex, hence they don't lend themselves to as much compression as the "real world" shots. What I reported for 5DMII were "real world" shots picked randomly from a library of over 10K images shot on this camera. The guesstimate size I always use for the 21 megapixel Canon sensor is 22MB. That | |
| Oct 6, 2011 at 13:00 | comment | added | dpollitt | @SteveRoss - The RAW files in the dpreview review are between 23-29MB. dpreview.com/reviews/canoneos7d/page14.asp | |
| Oct 6, 2011 at 5:30 | comment | added | Steve Ross | Actually, I believe the individual RAW files are smaller. A sample RAW image from a 5D Mark II is about 24MB. This same 5D is averaging between 18 and 25 MB. I don't believe the 7D is generating that much data from its crop sensor. | |
| Oct 5, 2011 at 20:53 | history | answered | dpollitt | CC BY-SA 3.0 |