If you’ve mounted where your Raspberry Pi and camera in a place where you can’t plug in a screen and keyboard, you’ll want an easy way to see how its photos look. Try using a mobile app instead of manually transferring photos to another machine where you can view them.
Still photos on an Android device
RaspiCam Remote Android app logs into your Pi via SSH, runs
raspistill, and sends the output to your Android device. You can use the GUI to preview some filters, or set command line arguments. I haven’t tried the video features yet.
There are some other apps for Android as well like Pi Sight and Raspberry PiCam.
Still photos with an iOS device
Consider BerryCam. I haven’t tried it, but it looks like RaspiCam Remote.