As it is right now, you can only send 5 images by email at the same time from your Camera Roll in iOS 7. There are some workarounds to increase that number, but a new feature in iOS 8 is finally making them unnecessary.
In iOS 8, the five-image limit is now gone. In addition, you can now choose more than one image when texting in the Messages app, which is definitely more convenient when you're in the middle of a conversation.
Currently, you can only select images one-by-one directly from the Messages app in iOS 7. The workaround for this is to select them from the Camera Roll directly and share them in a message, but in iOS 8, that's no longer necessary.
When inside a conversation, tap on the camera icon (versus using a swiping gesture). This will expose your photo options; just tap on the thumbnails of your recent photos to select them.
In iOS 8, you can check up to 20 images, though the recipient may not appreciate it.
The drawback is that you're restricted to recent images, but you are able to send up to 20, so sharing pictures from that crazy night is now easier than ever.
As previously stated, you could only email 5 images at a time via email, unless you used the workarounds. These workarounds are no longer needed in iOS 8. Just check out your Camera Roll from either the Photos or Camera app, tap Select on the top right, and begin choosing your images. Next, tap the share icon and select Mail.
To see what else you can do in Apple's latest mobile operating system, check out the Coolest Hidden Features of iOS 8, as well as the Best Hidden Safari Features, Top Hidden Features in Messages, and our other iOS 8 tips.