Introduction
The Kipon PL-PL 0.7x focal reducer is a specialized adapter designed to reduce the focal length of a lens by 0.7x, thereby increasing the light transmission by one stop. This feature allows full-frame lenses to be used on S35 sensor PL mount cameras, providing a wider field of view and enhancing the T-stop.
Key Features
Lens Compatibility and Light Transmission
The adapter accepts PL or LPL mount lenses and allows light to pass through to a maximum T-stop of T1.5 on the attached cine lens. This results in a potential T-stop of up to T1.1, with the image capable of covering sensor sizes up to a 36mm diagonal.
Optical Design
Creating a PL-PL 0.7x focal reducer is a complex task due to the intricate optical design required. The Kipon PL-PL 0.7x features 13 lenses arranged in 12 groups, ensuring low distortion and maximum imaging accuracy. This advanced relay optical construction projects an image from a PL mount lens onto a PL mount camera, a feat unachievable with conventional focal reducer designs.
Image Rotation
Due to the relay design, there is a 180° rotation of the image before it reaches the camera sensor. While this can be corrected by flipping the image in the camera settings, only a select few cameras offer this functionality.
Versatility
The focal reducer can be swapped to different mounts such as Arri LPL, Sony E, and Leica M, among others, enhancing its adaptability across various camera systems.
Size and Weight
One of the primary considerations with the Kipon PL-PL 0.7x focal reducer is its size and weight. The complex optical design results in a length of 205mm (8.07 inches) and a weight of 1.8 kg (3.96 lbs).
Historical Context
Interestingly, Kipon had developed a Leica M 0.65x focal reducer approximately 10 years ago. Although several prototypes were made, coverage and mechanical issues prevented it from entering production.
Price and Availability
The Kipon PL-PL 0.7x focal reducer is currently available for pre-order at $4,493.60 USD, which is an 18% discount off its standard retail price of $5,480 USD. As part of this pre-order deal, Kipon is offering a replaceable front module for using LPL lenses. Shipping is expected to begin on September 10, 2024.
