Specifications

- With AF confirm chip for Nikon.

- Macro confirm only, cannot focus infinity

- For using (for)Nikon cameras with M42 lenses (Carl Zeiss, (for)Pentax, Praktica, Mamiya). It is impossible to compensate flange bases difference without using an additional back lens. As a result, the picture quality becomes worse. So metric scale M42 doesn’t keep its meanings and focusing can’t be to infinity.

- You should remember that extension ring doesn’t work, diaphragm control is set manually. This adapter can work with lenses having both only automatic diaphragm (A) and selector A/M (automatic/manual diaphragm). It is possible to use Macro rings and other accessories. Approximate focal lengths: 50mm-1,5m; 85mm-3,5m; 135mm-6m.

- With AF chip (compatible with Dandelion) installed on a lens with an automatic AI-S aperture, the aperture will be controlled through the camera similar to autofocus lenses. This is one of Nikon's strongest points: you don't have to care about aperture when using an old manual lens.

- There are only three film cameras that AF chip is not compatible with: F4, F60 and F90x. It works with all other models perfectly.

- Fixed aperture value at F/2.8

- Gives correction of focus confirmation dot. Using manual control (M) mode in manual focus (MF) function is recommended.

Settings:

1. Put red marks of the adapter and lens collar togetter.
2. Turn the adapter clockwise till the fixative click.
3. Set M42 lens.

Removing:

To remove the adapter you should unpress fixative pin and turn the adapter clockwise.