What is a DC auto iris and why should it be considered?
A7: A DC powered “auto iris” function is basically used to regulate the amount of light entering the camera in different lighting conditions. They are often used to amplify light for a lens to obtain a more defined picture view for the camera. Use of such a camera and lens outfit can dramatically improve performance in lower lux conditions. You can often spot such a setup by seeing a cord between the back of the camera body and the lens itself. It is there to provide a means to deliver the DC voltage from. You cannot simply attach such a lens to any camera- even if the mount is a perfect fit. DC auto iris lenses require voltage and, therefore, a camera with a compatible DC auto iris output port. This is why it is recommended that you purchase a lens and camera together from the same company.
A8: A DC powered “auto iris” function is basically used to amplify or reduce light for a lens to obtain a more defined picture view for the camera. Use of such a camera and lens outfit can dramatically improve performance in lower lux conditions. You can often spot such a setup by seeing a cord between the back of the camera body and the lens itself. It is there to provide a means to deliver the DC voltage to the ciruitry inside the lens. You cannot simply attach such a lens to any camera- even if the mount is a perfect fit. DC auto iris lenses require voltage and, therefore, a camera with a compatible DC output. This is why it is recommended that you purchase a lens and camera together from our company. *We also carry some lenses with manual iris control.
