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TONEART Kameraverleih - Sucher / View Finder

Alphatron Alphatron
EVF-035W-3G EVF
Electronic View Finder

  • Magnesium Housing-Light Weight
  • Retina LCD Display; 3,54” (960x640, 16:9)
  • 160˚(H) / 160˚(V)
  • HDMI Input & Output
  • Various Scan Mode
  • Lens Shutter for protection of the EVF LCD Monitor
  • Internal Colourbar + Pluge Pattern
  • HDMI~HDMI A. Loop Through
  • SDI~SDI A. Loop Through
  • Phone Jack for Calibration

Alphatron EVF

 

Alphatron EVF-035W-3G

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Alphatron Electronic View Finder EVF-035W-3G

Display   * Retina LCD ( LED Backlight )
* 3,54” (960x640, 16:9)
* 500cd/㎡
* 1000 : 1
* 24bit RGB
* 160˚(H) / 160˚(V)
Interface Input * 1 HDMI
* 1 BNC (3G/HD/SD-SDI)
Output * 1 HDMI
* 1 BNC (HD/SD-SDI)
Miscellaneous * Phone Jack for Calibration
* USB for S/W Upgrade
Features Basic * Brightness
* Contrast
* Color Temperature
* Sharpness
Advanced * Various Scan Mode
* Markers, User Aspect
* Zoom, Blue Only
Professional * HD Video 3G Level A/B
* Audio Level Meter
* Time Code Display
* Range Error, Zebra Pattern,
* Luma(y’) Zone Check, Focus Assist
* Internal Colourbar + Pluge Pattern
* HDMI-to-HDSDI Conversion Out
* HDMI~HDMI A. Loop Through
* SDI~SDI A. Loop Through
General   * Magnesium Housing-Light Weight (480 gr./1,06 Lbs.)
* Adjustable Diopter
* Manual Lens Shutter for protection of the EVF LCD Monitor
* Power: NP-F Battery (not included), External DC 6-15V

 

Alphatron-View-Finder-EVF-035W-3G

Retina LCD ( LED Backlight )
Alphatron View Finder EVF-035W-3G

The resolution of the 3.5” Retina (iPhone) display is 960*640 as you may know. It is not only higher than the 800*480 resolution but is also a magic number for a better picture quality.

For full HD video signals, the EVF-035W-3G will use only 960*540 pixels to match the aspect ratio of 16:9. A resolution of 960*540 is exactly half of the full HD resolution which is 1920*1080. This means that the EVF-035W-3G will have the downscaling factor of 2.0 (1920/2=960, 1080/2=540).

Resolution : 960×540 (518,400 pixels)

  • Exactly ½ of the Full HD Resolution -> Perfect downscaling factor;
  • No Vertical 1 pixel line omission (see cross hatch pattern of 1080i/60 on 800*480 resolution monitor)

We call it the ‘Perfect Downscaling Factor’. You can see why this is important if you look at the specification of the competitors. Regardless of the size, all of the EVF’s (Cineroid, Zacuto and SmallHD) have the resolution of 800*480 which has a downscaling factor of 2.4 (1920/800=2.4) horizontally and 2.25 (1080/480=2.25) vertically.

When you have to downscale full HD video to match the lower resolution LCD panel, there’s a significant difference in picture quality if the downscaling factor is an integer.

The EVF-035W-3G shows 1 out of every 2 pixels. However, if the downscaling factor is not an integer (i.e : 2.4 or 2.25), some of the horizontal and vertical pixels cannot be reproduced in a correct way. Hence, fine details, particular those for accurate focusing, cannot be reproduced.

Of course it’s best if you don’t need to downscale the video from the camera. But, if you have to downscale due to the limitation of the LCD panel, it’s better to have the downscaling factor of 2 rather than 2.4 or 2.25. You can verify this benefit simply by loading 1 pixel-width horizontal- or vertical lines in full HD resolution to the monitors or EVF’s.

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Alphatron
EVF-035W-3G EVF
Electronic View Finder


Alphatron EVF

  • Magnesium Housing-Light Weight
  • Retina LCD Display; 3,54” (960x640, 16:9)
  • 160˚(H) / 160˚(V)
  • HDMI Input & Output
  • Various Scan Mode
  • Lens Shutter for protection of the EVF LCD Monitor
  • Internal Colourbar + Pluge Pattern
  • HDMI~HDMI A. Loop Through
  • SDI~SDI A. Loop Through
  • Phone Jack for Calibration

Pro Einsatztag 35,- Euro netto
Tag der Anlieferung und Abholung frei
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