Tag Archives: M4

Chronos Camera m43 Lens Adapter with Speedbooster Support!

The two existing Chronos cameras, the 1.4c 720p at 1502fps & the Chronos 2.1 -HD 1t 1080p 1000fps are identical when seen from the outside but very different inside as they contain different sensor and memory boards. However one constant is that both use the C mount as the default for lens adapters. The camera usually comes with a Canon EF or Nikon F mount adapter depending on the buyer preference which screws on the C mount thread and allows for support of classic lenses from Macro to telephoto. 

One request from the community has been the support for other lens mounts like Micro 4/3ds which lets you adapt a variety of lens mounts and the much coveted speedbooster adapters which allow a 1 f-stop improvement in light gathering for micro 4/3ds systems. Today Krontech, the company behind the Chronos high-speed camera is introducing a passive Micro 4/3rds adapter for both the Chronos 1.4c and 2.1-HD and uses the body screw terminals near the lens thread mount to place a solid connection that allows such lenses. → Continue Reading Full Post ←

Z CAM E2 M4 Slow Motion With Affordable 4k 160fps!

Z CAM E2 M4 Slow Motion

The new Z CAM E2 – M4 Micro 4/3″ sensor cinema 4k camera offers performance that punches way above its own price weight of just $1,499 @ Adorama which is $500 less than the very similar regular Z CAM E2 just lacking Multicam synch support which is a very minor trade off considering the power and benefits you gain.   It has Triple native ISO of  80 / 160 / 800 and 13 stops of DR using their ZLog profile, and 16 stops of DR in WDR mode which does some HDR processing.

The frame rates are also outstanding for such a low-cost camera and while the higher setting requires H.265 encoding which for many is not ideal considering it lowers the bit depth from 10 bits to 8, it offers what many cameras only dream of.  160fps in 4k in beautiful resolution and up to 240fps in 1080p which has very good quality with some compromises.

Z CAM E2 and E2 M4 Main Specs:

  • Dynamic Range13~15 Stops (Z-Log2) / 16 Stops (with WDR activated)
  • Sensor Type4/3″ WDR CMOS Sensor
  • Effective Pixels10.28M
  • Lens MountMicro Four Thirds  19.0 x 13.0 mm
  • Max Variable Frame Rate120 fps for 4096 x 2160 (H.265 only)
    120 fps for 3840 x 2160 (H.265 only)
    150 fps for 4096 x 1728 (H.265 only)
    160 fps for 3840 x 1620 (H.265 only)
    160 fps for 2704 x 1600 (H.265 only)
    59.94 fps for 3696 x 2772 (Apple ProRes & H.265)
    59.94 fps for 3312 x 2760 (Apple ProRes & H.265)
    240 fps for 1920 x 1080 (H.265 only)
  • MediaCFAST 2.0
  • Max Bit RateH.265 / H.264
    300 Mbps for 4096 x 2160 / 3840 x 2160 / 4096 x 1728 / 3840 x 1620 / 3696 x 2772 / 3312 x 2760 / 2704 x 1600
    200 Mbps for 1920 x 1080
    -ProRes
    Please check “Apple ProRes White Paper” for the bit rate of ProRes encoding.
  • 12-Bit ProRes RAW
    10-bit (H.265 & ProRes) & 8-bit (H.264)
  • Triple native ISO 80 / 160 / 800
  • Video EncoderProRes Raw, ProRes 422 HQ / ProRes 422 / ProRes 422 LT / ProRes 422
    ZRAW (partial debayer) / Proxy / H.265 main 10 profile / H.264 high profile
  • Connectivity
  • HDMI
  • HDMI 2.0 Type A (video output up to C4K @60fps)
  • USB USB 3.0 Type C for camera control & data transfer only
  • I/O  10-pin LEMO port for synchronization (requires additional Sync Cable, not included)
  • COM    DB-9 connector, supports RS-232
  • Remote Control  2.5 mm jack socket (Sony LANC compatible)
  • Audio In – 3.5 mm stereo jack socket for active microphone only, or 5-pin LEMO port for dual-channel XLR microphone (requires additional XLR audio connector)
  • Audio-out  3.5 mm stereo jack socket
  • Wi-Fi 802.11n, 2.4G with external antenna port
  • Ethernet  Gigabit Ethernet port for control, setting & live streaming
  • Power  Battery Sony NP-F series compatible (Battery not included)
  • External Power Supply  – DC 12V 5A (4-pin LEMO socket), with LEMO connector and AC/DC power adapter
  • Material  Aluminum Alloy
  • Weight  757 g (without lens)
  • Dimensions (W x H x D) 91.2 mm x 99.2 mm x 89.1 mm (without lens)

So just from a specs point of view we can see the E2 being a real powerhouse with a variety of excellent options for shooters. If you also ad a speedbooster then you get APS-C like performance on a sensor that performs like that of the Panasonic GH5s with excellent quality up to ISO 6400-12800.

Z CAM E2 M4 Slow Motion how good is it?

The slow motion aspects for the Z Cam E2 M4 are class-leading with 160fps at 4k DCI and UHD with what we have confirmed to be pristine quality with no real artifacts besides H.265 compression. You will of course get 8-bit limitations on gradients and single shade subjects like blue skies but for everything else will be more than adequate.  See the beautiful sample below by Ludeman Productions of the E2 shooting in 4k at 160fps H.265.

ZCAM E2: 160p by Ludeman Productions:

When it comes to 240fps there is of course a trade-off that we have seen in the GH5s and other cameras that use this similar sensor design. The color, dynamic range, and frame rates are beautiful but you do get jagged edges on detail segments of the frame and especially lines with the characteristic stair-stepping of aliasing by the fact that the frames are captured by throwing out some lines.  It is still very good and for many users, it will be just as capable but if you value pixel perfection then the 240fps 1080p mode will disappoint purists.  See the samples below to get a sense of the quality offered here.

Z Cam E2 240 FPS Fountain by Newsshooter: → Continue Reading Full Post ←