Nikon D3100 Memory Card Recommendations

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Take a look at my notes which attempt to answer all of the questions and concerns faced when purchasing a memory card for the Nikon D3100. I'll shed some light on compatible memory cards, specific requirements for HD recording, the number of images you can expect to take, estimated movie recording times and other important info.

Compatibility

The D3100 takes 3 types of memory cards…

SD Memory - Nikon D3100

SD – Up to 4GB worth of images and video.

SDHC Memory - Nikon D3100

SDHC – Up to 32GB worth of images and video.

SDXC Memory - Nikon D3100

SDXC – Up to 128GB (currently) worth of images and video.

Image Capacity

The information below shows the total number of images that can be recorded based on memory card size…

4GB – 254 images (fine) and 129 images (raw)
8GB – 509 images (fine) and 259 images (raw)
16GB – 1,018 images (fine) and 518 images (raw)
32GB – 2,036 images (fine) and 1,036 images (raw)
64GB – 4,072 images (fine) and 2,072 images (raw)

HD Video Requirements

In order to record HD video on the D3100, your memory card will need to have a Class 6 rating or higher. If it doesn’t meet this requirement, video recording may stop unexpectedly.

Video Capacity

No matter how large your memory card is, video clips are limited to 10 minute segments. The information below shows the overall recording time based on the highest quality movie frame size (1920×1080):

4GB – 26min 40sec (.mov)
8GB – 53min 20sec (.mov)
16GB – 106min 40sec (.mov)
32GB – 213min 20sec (.mov)
64GB – 426min 40sec (.mov)

Speeds & Ratings

Class Ratings

Nikon D3100 Memory Card Class RatingsClass ratings represent the minimum write speed for a memory card. So a memory card with a class 6 rating will have a minimum write speed of 6 megabytes per second. As mentioned above, Nikon requires a Class 6 rating or higher in order to record and playback HD video with the D3100. I recommend going with a Class 10 card just to be safe.

Speed Ratings

Nikon D3100 Memory Card Speed RatingsSpeed ratings represent the maximum read/write speeds. If you plan on recording HD video, shooting long bursts of images (10+) in continuous mode or capturing RAW images with your D3100, then I recommend going with a Lexar Professional (133x or higher) or a SanDisk Extreme (30MB/s or higher).

My Picks

Lexar and SanDisk memory cards are the safest bets when it comes to reliability and performance. I’ve used them for years and trust them with all of my pro work. Recently, I’ve been using Transcend cards for personal use and have been pleasantly surprised. Again, if you plan on utilizing some of the more advanced features on the D3100 (video, RAW, burst) then go with a Lexar Professional (133x or higher) or a SanDisk Extreme (30MB/s or higher). If you just need something for everyday (personal) use, Transcend (class 10) cards are an excellent value.

Here are my memory card picks for the Nikon D3100…

SanDisk 16GB Class 10

8GB (class 10)
16GB (class 10)
32GB (class 10)

Lexar 16GB Class 10

8GB (class 10)
16GB (class 10)
32GB (class 10)

Transcend 16GB Class 10

8GB (class 10)
16GB (class 10)
32GB (class 10)

Check out the D3100 homepage for more tips, advice and recommendations. Happy shooting!

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