Earlier today I got thinking that we may be able to use a reverse adapter, along with some filter rings (the filter glass removed) to increase the magnification. More or less turning the filter rings into small extension tubes.
So when I got home I decided to try it. I removed the glass from a set of close up filters I was given (I never did like close up filters
)
I then set both the camera and a off camera flash up on tripods. The flash had a narrow snoot on, directing the light.
I then sprayed this pretty much dead flower with a few drops of water, then moved the flower until it was pretty much in focus. I had to move the flower a little between each shot, along with the lighting to compensate for the increased focal distance.
oh, the camera was set at ISO 100, the 50mm f2.0 lens was set to f22. Custom White Balance.
These are the results I got.
3 filter rings.
the crop.
2 filter rings.
the crop.
1 filter ring.
the crop.
and no filter rings, just a reversed lens.
the crop.
So, as you can tell the filter rings will act the same as extension tubes increasing magnification.
Like expected the DOF decreases with every extension, however it honestly drops less than I would have figured.
These 3 rings will be part of my closeup set now.