Tech Byte: PRIME CIRCLE Custom Lenses

PRIME-CIRCLE

In the last years the HDSLR revolution opened a new choice for the beloved and worldwide diffused Canon EF Mount and later Nikon F lens. Great quality lenses never seen on the video market and a creative source for filmmakers and videomakers. Everything is changed in the video lens world! The EF Mount jumped to a second life, and becomed day after day the new "indie" film camera mount, and started the massive digital cinematography age, mixing photography and cinematography in a media thats converging day after day into something we maybe understand better in the next decade.

The PRIME CIRCLE XT project has taken off into this innovative vision of shooting movies with HDSLRs and now with an evolved EOS C100/300 and powerful C500. Nikon is facing seriously to the HDSLR opening the "sensor race"……such a great time!

Real cost effective lenses was what was missing in this new wave of filmmaking or new wave of digital storytellers: before still-photography lenses, not performing mechanically for filmmaking or real expensive cinematography exotic primes lens.

PRIME-CIRCLE

PRIME CIRCLE is jamming the two concepts: great still-photography lenses with the technical vision of cinematograhpy primes to offer a new dimension in shooting moving images.

PRIME CIRCLE XT starts from cine-modding of the ZF.2 world class optics by Carl Zeiss, built by the most advanced technology and manufacturing for still photograpy and tuned-up to reach improved functionality and shooting ergonomics. The optics has incredible sharpness, contrast and color matching between all the sizes and a magical "bokeh" to design the "emotional" drive into the story: incredible optics to design emotions on the screen! Digital sensors feel more cinematic with this wonderful set of lenses.

PRIME-CIRCLE

PRIME CIRCLE XT lens designs have an ultra-lightweight ergo-focus gear for follow-focus, featuring also an extra-grip ergonomic ring when using the camera on the run in hand-held focus mode, a Front Mount 95mm standard (all the lens sizes) ring-mount for matte-boxes and cine-style accessories, plus an aluminum cap with clear graphics displaying the lens size and f/aperture.

The PRIME-CIRCLE Front Mount is designed to match exactly the ZF.2 Lens and the circular grooves offers the bestsolution to prevent internal reflections and flares when using large flat surface optical filters in matte-boxes: a solution used in expensive cinematography primes lenses.

The PRIME-CIRCLE Front-Mount is designed to offer full-frame 24X36 coverage with ZF.2 18mm f/3,5. and 15mm f/2,8! X-Circle Mount stainless steel heavy-duty bayonet features Side Index View (pat.pend.) for focus and aperture scales on the side of the lens barrel and the sophisticated EF Cine-Lock Bayonet (pat.pend.) forcine-style locking of the lens on the camera. A real important step ahead to cinematographers demanding for precise follow-focus work with F-Mount and EF Mountcameras.

The PRIME-CIRCLEXT are custom mounted ZF.2 lenses offering "in-house" assemblingby professional and passionate technicians. The XT Custom Series also offers a Side Code Barrel displaying with clear graphics the lens size for immediate coding of the lens mounted on the camera! Another solution inspired by cinematography primes! On movie production sets the lens size has always to be reported into the camera shooting log form, that’s why the lens size is displayed clearly on the side of the PRIME-CIRCLE XT lens barrel. Aperture ring de-click and dampening for a wonderful "shift on the fly" manual exposure control! Prime-Circle XT offers double choice X-Circle (pat.pend.) bayonet: interchangeable F-Mount and EF Mount in the same lenses set. An aluminum custom cap with enhanced graphics for frontlens size coding and rear professional lens cap is supplyed with the lens.

PRIME CIRCLE XT Custom Lens focal lengths:2,8/15mm 3,5/18mm (FF), 2,8/21mm,2,0/25mm, 2.0/28mm, 1,4/35mm, 1,4/50mm, 1,4/85mm, 2,0/100mm Makro, 2,0 50mm Makro…and really soon the APO chromatic 2,0/135mm.

Several different XT PRO Kits will be available with PRIME-CIRCLE custom flight-cases (also hand baggage size) for tough protection during transportation.

An innovative matte-box (MAT-BOX), that covers the 18mm/3,5 angle of view on Full Frame 24X36, featuring Sliding Compensation of ZF.2 lenses was designed to match perfectly the PRIME CIRCLE XT lenses.

PRIME-CIRCLE XT Custom Lens can be ordered now, delivered worldwide after 3 to 4 weeks.

PRIME-CIRCLE highlights:

  • Still photography ZF.2 Carl Zeiss high-end lenses meets professional cine-style features.
  • Superb optical performances for true cinematic images.
  • Ultra Lightweight design, engineering and precision grade manufacturing.
  • Ergo-Gear, innovative follow-focus gear featuring also handheld ergonomics grip.
  • Front Mount with 95mm size mount for professional cinematographers matte-boxes and accessories.
  • Nikon F-Mount and Canon EF-Mount with the same lens.
  • Exclusive SIDE INDEX VIEW (pat.pend.) for easy to read focus/aperture settings – EF Mount only!
  • Innovative X-Circle Cine-Lock (pat.pend.) stainless steel heavy-duty bayonetwith improved (positive) locking mount for cine-style focus work.
  • X-Circle Side Index View and Cine-Lock features for Nikon F-Mount available (no aperture simulator of Nikon camera bodies with de-clicked aperture gear).
  • Front Mount with circular engraved micro-lines matching each different ZF.2 fonr mouint for superior flare and reflection control.
  • Full coverage Full-Frame 24×36 with ZF.2 18mm f/3,5 and 15mm f/2,8.
  • Side Code Barrel with engraved lens size – immediate lens coding for production crew reports.
  • PRIME-CIRCLE Custom lenses are designed by a cinematographer on the field to improve shooting quality!
  • Aperture ring de-clicked and dampened with special grease.
  • Dedicated matte-box with sliding compensating base(MAT-BOX) available.
  • Custom Flight – Cases in several solutions.

Resources:

www.lockcircle.com