The lens attached to the camera must be the long.
Camera lens coupling rings.
The reverse coupling ring makes it possible to attach the two lenses face to face.
The lens that is furthest from the camera is mounted in reverse and acts as a powerful and well corrected close up lens.
Nikon br 5 adapter ring 62 52mm for br 2a reversing ring 62mm lenses.
Made of anodized aluminum.
If you have two different diameter lenses then the combination of a macro coupler and a step up or step down ring will do the job.
They allow you to connect two lenses by their filter mounts.
This item metal 49 49 mm 49mm 49 mm female to female coupling ring adapter for lens filter 49mm metal lens filter adapter ring for fujifilm fuji x100v x100f x100t x100s x100 x70 camera wide conversion lens wcl x100 ii installing uv cpl nd filter lens cap replace fujifilm ar x100 black.
The trick is to find a macro coupling ring that goes between sizes normally they have the same size threads on each side.
A 50 mm lens is 20 dioptres much stronger than normal close up lenses.
While not optically perfect you will get soft edges you can get some very good macro shots with this technique.
A reversal ring is an inexpensive camera specific device that allows you to mount your lens es on your camera backward.
That combination makes a great macro lens at a fraction of the cost.
Most lens mounts in current use are bayonet style in which a lens is attached to the camera body by registering the lens in proper orientation with the camera body then giving a slight twist of about 45 90 to lock the lens in place.
B h forevemmnikf mfr reverse mount 52mm nikf.
If you flip your lens around then it will act as a magnifier.
Reverses lens for macro photography.
Fotodiox 52mm reverse mount macro adapter ring for nikon f mount cameras.
Coupling rings are adapters with a male filter thread on each side.
B h nibr5 mfr 2631.
The purpose of a camera lens is to make the image of a subject smaller for example you want to shrink the eiffel tower to 24x36mm which is the size of your captor if you have a standard camera or even smaller if you have a camera like mine.
The idea is to take a picture of this magnified image.