Zhong Yi Optics Speed Master Series Operating Instructions

Operating instruction of Zhong Yi Optics SLR
(Single Lens Reflex)
Thank you for u sing lens produced by Zhong Yi Optics. Before you use the lens, please read the
instruction carefully and thoroughly.If you encounter any problems, feel free to contact us and
the information is written at the back of the instruction, or contact the distributors.
Currently, there are two main series lens of Zhong Yi Optics, Speed Master series distinguished in
large aperture, and Creator series featured in high cost performance. Both are manual focus and
manual aperture adjustment , and manual lens without transferring signals to the camera bodies.
Lens Installation
Taking off the ear lens cap, then aim the red spot in lens mount at lens installation anchor point
in the body mount. Inserting the lens into the camera, rotate the lens as the same direction you
install the lens. When you hearing the tick sound from the camera body, it means the lens is in
the right spot and could be used.
Usage
Manual lens have different operational approaches in different SLRs. In this instruction, the usage
of Zhong Yi Optics lens in Canon, Nikon, Pentax and Sony would be introduced. At the same time,
please familiarize the usage of manual lens in the instruction.
Lens used In Canon
The camera body settling:
1.Set the no-lens-releasing option to allow state.
2.Always maximize the aperture while taking pictures. Only adjust the aperture ring in lens, not
the camera aperture state .
Approaches to take photos:
When applying the A position, half press the shutter and rotate the focusing ring. If the subject is
focused, then you would hear the tick sound, and see the yellow spot in the viewfinder glittering.
The reminder of sharp focusing would be invalid , when the aperture is beyond f8.
In M position, the SLR is under fully manual condition.
Requiring more details, please refer to the manual lens usage part in the instruction.