Reversing lens adapter
At the request of readers a small article on the reverse macroadapter. A reversing adapter should not be confused with a reversing ring.
A reversible adapter is an adapter that allows you to attach a lens backwards to a camera. This is done mainly to enable macro. This installation looks quite funny, since the back (tail) of the lens is designed to be screwed into the bayonet. Actually a photo of such an installation can see for yourself in this article.
That is, having any lens, it can be turned into a macro lens with the help of a reversing adapter. The adapter ring is worn (wound on) instead of a light filter and with its help is attached to the lens. It turns out as shown in the picture.
The advantages of this adapter is a very easy, fast and cheap way to get a good macro. When used, a rather large increase is obtained. Also, it is possible to attach lenses of any other manufacturer to the same bayonet, it is important that the diameter of the filter coincides with the reverse adapter.
The disadvantage is a number of limitations:
1. In this position, the lens can be used, in fact, only for macro from a very close distance.
2. Focusing (focus) practically does not work. Twist the focus ring, often, just useless.
3. If you have a modern lens with built-in aperture control, then shooting is very difficult. It is necessary either to block the diaphragm in some way, or to shoot at the fully open / closed diaphragm.
4. On a number of cameras, operation will be possible only in the M mode (manual mode), while on a number of cameras it will be possible to use the aperture priority mode.
When working with such an adapter, it is important to remember that focusing is done by moving the camera-lens back and forth away from the subject. Depth of field is standardly controlled by aperture. It is best to make focusing with a tripod on a fully open diaphragm, close to the desired value and take a picture.
For example, on my Nikon D90, D80, D40, you can only shoot in manual mode with manual setting of the aperture on the lens and manual setting of the shutter speed in the camera.
Examples of actual use:
When used with a whale lens 18-55, the diaphragm can be controlled only through a lever (aperture jumper), which is completely inconvenient and without certain values, but the macro is excellent. With the exposure just does not really guess. Using the fifty-kopeck Nikkor 50mm F1.8D, you can control the aperture, which simplifies the whole process.
How to install?
To pick up the adapter, it is enough to know the diameter of the thread of the lens under the filter. For example, a number of my lenses have a diameter of 52mm, so for installation on the Nikon system I will need the adapter “reversible 52mm \ Nikon”, for Kenon it will be 52mm \ Kenon. Such a transition is not at all expensive, since in principle it cannot be with some kind of electronics. This is just a piece of iron / plastic. I use the old Soviet adapter “KO-N / 52”, which means an adapter for thread 52 to the “H” type bayonet (Kiev, Nikon).
To the note: it is still quick and cheap to get macro when using macro rings. You can read more in my article about macro rings, and there is still an interesting version of a bunch of two lenses for macro photography.
The photos below are made on lenses in their reverse position, all photos without cropping (cutting out the frame parts), auto levels, converting from RAW to JPEG with resize and watermark.
Macro using reversing adapter
Conclusion: what the amateur photographer does not think up to squeeze the maximum out of his lens. So a reversible adapter will allow you to get a macro lens with a good magnification from almost any lens.