The MFT mount MicroPrime Cine 25mm T1.5 Lens from SLR Magic covers Micro Four Thirds sensors and features a fast aperture, 150° focus rotation, and internal focus mechanism.
The short focus throw was incorporated so that when you rotate the focus ring by hand, you'll be able to comfortably adjust it from end to end. The internal focus mechanism of the lens minimizes breathing. Breathing can cause the front of the lens to actually move, in which case your framing might change as you adjust focus. But that's not a problem with this cine lens.
The lens shares many consistent features with the rest of the MicroPrime series in order to allow for an efficient workflow. All the MicroPrimes have color and bokeh consistency between one another. The front diameter is universally 85mm so you can easily move clamp-on matte boxes from one lens to another.
The filter thread size is 82mm. The length and weight are the same so that if you use a gimbal, you won't have to recalibrate it if swapping in this lens for one of a different focal length. And the lens gear positions match up.
The MicroPrimes also have calibrated witness markings so focus pullers can reliably measure the distance between the focal plane and subject.
Description
Optical Structure:11 pieces in 9 groups
Minimum focus distance:0.3m
Weight:1.5 lbs
Magnification:about 0.06 times
Lens front glass diameter:1.45 inches
High:3.2 inches
Maximum aperture:T1.5
Minimum aperture:T16
Lens Type:Manual Lens
Lens frame: M4/3 frame
Number of aperture blades:13
Filter aperture:82mm
Field of view:46°
Image circle:ɸ44