Since all camera manufacturers have launched different camera units, choosing the light camera lens mounts can be hard. This is true for things such as throat size and the inner diameter whereby different measurements are utilized to quantify the mount’s potential wrongly. Unluckily, there is a lot of incorrect information about camera mounts and their real sizes. That’s why we’ve decided to talk about different mounts such as LINOS MeVis.
Lens Mount Defined
Lens mount is an opening of a particular size of an interchangeable lens camera that lets you attach lenses meant for that mount. During the early days of photography, the lens was mechanically fixed to the camera with no communication between the two. But with the introduction of autofocus systems and automatic metering, it was necessary to make electric contact on the lenses and camera to let them communicate with one another. For that reason, the lens mount such as MeVis C-Mount Lenses became an interface between the camera and lenses.
While the majority of lens mounts need to twist them clockwise to attach the lens, some models feature a reversed way of attaching the device. While it doesn’t matter the direction a lens is mounted or unmounted, it may cause some confusion and may take time to be familiar with it, especially if you change the brands.
Mount Size (throat size, Outer and Inner Diameter)
For the mount size, there are some essential measurements that you must do accurately, particularly when the lens mount is compared to another. This includes the throat size, outer diameter and inner diameter. Here are some of these measurements.
This is the inner diameter of the lens mount, without including the tabs utilized to mount the lenses. The throat size offers you a more accurate representation of the potential of the mount and is essential for computing the angle of incidence.
This is the full diameter of a bayonet mount that represents the metal mount. This diameter plays a vital role in determining the estimated outer diameter of the rear region of the lens. This is because it must wrap itself over the outer lens diameter.
Lens mount’s inner diameter is the size of the lens opening without the tabs on the mount. The measurements are offered by the camera manufactures and offers you an idea of the general size of the lens mount.
Also referred to as flange focal distance, register or flange back distance, a flange distance is a distance between the mounting flange and the sensor plane. The same as different mounts have varying throat size, outer and inner diameters, and flange back distance differ between different cameras.