Therefore, to determine how many photos in a GB for your memory card, you need to know your camera’s megapixels.Īs an example, if I look at a 16GB SD card with one of my old 20 megapixels cameras, I can see that it holds 665 pictures. The larger the number of megapixels that your camera shoots at, the larger the file size will be, for the same RAW or JPEG quality settings. The resolution of your camera (often written on the outside of the body, or you can find this within the in-camera menu or printed handbook) will probably be in the range of 15 – 30 megapixels. The number of photos that you can fit on your memory card doesn’t just depend on the photo file size, but also on the camera itself.
#Megapixel resolution calculator iso#
There are examples below, shooting with various sized cards at the extremes of ISO on a Canon 6D: How many photos can 16GB hold? RAW photos at ISO 50 RAW photos at ISO 51200 Canon 6D with 16GB SD Card 754 445Ĭamera Resolution Determines How Many Photos in 32GB / 64GB / 128GB / 256GB This is because of the extra data each pixel produces from the increased brightness and color spots that shooting at high ISO causes. You should be aware though, that RAW file sizes can get quite large as ISO increases in night photography. In general, I would always recommend shooting in RAW, as although the file size is larger than for JPEGs (usually about 3x larger), the extra data contained in the RAWs makes any later photo editing and processing you do of much higher quality. Some cameras do compress RAW photos (particularly those that shoot at high megapixels), but in general, RAW files from one camera will all be much closer in size to one another than comparable JPGs, so it’s more reasonable to ask how many RAW photos can 32GB hold, compared with asking the same for JPGs. RAW photos are different from JPGs in that they contain all the data from each pixel in your camera, rather than an already processed image. Note: cheaper cameras will be able to fit even more photos per GB as they have smaller, lower megapixel sensors.Įxamples: How many pictures can a 16GB memory card hold? Standard Quality JPEG Fine Quality JPEG Canon 6D with SD Card 16GB – How many photos? 14850 5801 There can be significant differences in file size even between two neighbouring quality options, as you can see in the examples below for a Canon 6D. These refer to the amount of compression in each JPEG, with normal being the most compressed, and therefore with the smallest file size, with extra fine the least compressed, which therefore creates the largest JPEGs.
Most cameras have multiple options for quality when shooting in JPEG mode – normal, fine, and extra fine (although these may only be referred to with symbols in your camera menu). With JPEGs, unlike with RAW files, the file size depends primarily on the JPEG quality settings that you use. Obviously, the number of pictures that you can fit on a memory card depends on the file size of the individual photos.
Instead, you are probably thinking of questions like:
If you read my recent article on which is the best SD card for your camera, you will know that I suggested you buy the largest capacity card you can afford, without sacrificing on the quality of the card.īut knowing the capacity of the memory card itself is not that useful. In basic terms, 32GB holds 7500 JPEG photos, 64GB holds 15000 JPEG pics, 128GB holds 30000 JPEG photos and 256GB holds 60000 JPEG pictures, but this varies considerably depending on the factors discussed below.
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