In photography and cinematography, a multiple exposure is the superimposition of two or more exposures to create a single image, and double exposure has a corresponding meaning in respect of two images. The exposure values may or may not be identical to each other.
Try to take photo of portrait with light behind it.
White background or blown out skies.
Example silhouette type shots.
Sunset and sunrise are best time to get perfect exposure.
I’m using nikon DSLR.
For beginners i advice to try with black and white photos.
select multi exposure mode and trun ON.
keep auto gain OFF.
First shot is key in multiple exposure.
You should keep background brighter.
After taking 1st shot you can check LIVE PREVIEW.
it helps to take your second shot easily.