Its about time we give due props to the Letus Extreme.
The Letus Extreme is a 35mm lense adapter. If you're not familiar with this type of device, its main purpose is to give you the depth of field of a 35mm film camera or a digital cinema camera with a sensor the size of a 35mm film frame (like the RED one). The adapter does this by using a focusing plate to display an image through the external lens attached to the adapter. Since this image is focused onto a translucent screen the camcorder is able to frame this intermediate screen and record it. The principle of one of these adapters is similar to pointing a video camera at a movie screen. The lens attached to the adapter now takes the job of the camcorder's focusing and aperture mechanisms, as the camcorder's only responsibility at this point is to record what is being projected onto the focusing screen (called backfocus).
The major drawback to this type of device has been a large loss of light, typically around 2 stops. However what makes the Letus that "extreme" is that it only has a 1/2 stop light loss!
Letus35 Extreme Features
New prism technology with proprietary Image Orientation Correction technology (IOC). This adapter "flips" the image upright
Highest optical grade achromatic lens (custom-made for this specific adapter)
Custom condenser specially tailored for this adapter to get the best possible picture quality
New and improved Ground Glass element
Beautiful film-look bokeh
Absolutely no vignetting
Best edge-to-edge sharpness in the industry
Stunningly beautiful image colors
Casing milled from solid aluminum
Anodized black finish
A sleek, built-in On/Off indicator with LED
Battery is fully enclosed and secured by 2 magnets for ease of replacement during a shoot
Virtually silent vibration system that will not interfere with microphones
Alignment is a breeze with the new and improved 72mm, 77mm, or 82mm ring design
Interchangeable thread rings and lens mounts for easy adaptation to different cameras / lenses on the fly.
Comes with your choice of one free mount (Canon FD, Nikon AI, Canon EF (EOS), Pentax K mount, Minolta MD, M42 Screw mount)
PL mount and OCT19 mount also available at a discounted price if selected as the primary mount on the Extreme.
Hex key for adjustment/installation
End caps included for protection during transport/storage
Light switch brought to the back to avoid distraction to those in front of camera
Threaded hole on the front tube for matching up to support systems
One year warranty
Labels: 35mm, camcorder, ex1, lense adapter, letus extreme, prosumer, RED one
