How many photo images can be stored on a Memory Card?

The following information for photo images is a guideline, the number will vary based on several things, such as camera model, internal file size, compression settings, what you have chosen for resolution and compression mode settings and finally, JPEG (is a compressed file) compression will result in different file sizes based upon picture complexity…
MP=Megapixels: MB=Megabytes, GB = Gigabytes

This approx. number of photo images can be used on these 2 different size SDHC Memory Cards on 4 different size cameras - 6MP, 8MP, 10MP and 12MP. The SDHC Memory Card is one of the most popular memory card styles used today by camera manufacturers..

4GB: 6MP=1905 images; 8MP 1270 images; 10MP 802 images or 12MP 677 images

8GB: 6MP=3812 images; 8MP 2540 images; 10MP 1604 images or 12MP 1354 images

Note: all memory cards have a DCIM folder (Digital Camera Image) which should never be removed..

New Wi-Fi Memory Cards for Digital Cameras

Have you heard of the new “wi-fi” memory cards for use in your digital cameras and camcorders… Check out this website:

www.eye.fi

The Eye-Fi memory cards look, stores media, and fit into cameras just like a regular SDHC memory card. On top of that, the Eye-Fi card has built-in Wi-Fi that uses your wireless network to effortlessly transfer photos and videos

The Eye-Fi card uses your home or office Wi-Fi network-Upon setup, specify which networks the Eye-Fi card uses to transfer your media. You can add up to 32 networks for your card to use. The next time your camera is on and within range of a specified network, your photos and videos will fly to your computer and to your favorite sharing site.

The Eye-Fi cards (4GB – 8GB for $40-$150 each) are the first wireless memory cards.

Features (from their website)

• 4GB memory. Store up to 2,000 photos or 90mn of video with top-notch Class 6 speed. Works just like with your regular SDHC memory card. Perfect for your compact camera
• Wireless. Upload JPEG photos & videos fast through your home Wi-Fi network thanks to built-in 802.11n speed
• Endless. Get the only card that can free-up space for you after pictures are safely delivered. Never worry about running out of space again
• Automatic back-up. Wirelessly upload JPEG photos and videos to folders of your choice on your computer, or even directly into iPhoto for Macs
• Organized. Photos and videos can automatically land in date-based folders, so memories are organized effortlessly
• Compatible. No need to buy a new camera – visit their website to confirm that your camera can be turned into a wireless uploading machine
• Effortless sharing. Wirelessly send your JPEG photos and videos to a popular website. Visit their website to see a complete list that you can choose from, which includes Flickr, Facebook, Picasa, MobileMe, and YouTube
• Pick your pics. You can select which photos and videos are uploaded
• Get notified. Get email, Facebook or Twitter alerts when your photos are uploading online
• Quick and sweet. Set up takes just minutes