LV mode and Low Vibration mode in DSLR cameras, Nikon, Canon, Sony
PeterZheng | Opinions | Published Nov 14, 2012
What time would Nikon bring Zero vibration mode in DSLR cameras?
--- LV mode and Low Vibration mode in DSLR cameras
--- Canon and Sony with an electronic 1st shutter curtain method
a very very heavy platform was placed for the heavy microscope system, no doubt, the platform device is enough strong and stable, far over any tripod, if you knew about the old darkroom enlarger platform.
Unluckily, as you still seen the focal plane shutter bounce vibrations blurred the imaging, when using mirror lockup.
Not to mention a lighter tripod and a lighter weight's camera and telephoto lens with a sensor in 3.8µm or 4.8µm together.
What's better than mirror lock?
However, Please Note, an electronic 1st shutter curtain method can offer Zero vibration on the Live-View shooting.
Canon launched eos 40d in 2007, therefrom Canon's DSLR cameras have been employing this "electronic 1st shutter curtain" for "Low Shock shooting" in Live-View mode, the "Silent" is merely a byproduct, Canon's true purpose is with the shortest shutter lag and the Zero vibration on the Live-View shooting.
Sony have also employing "an electronic 1st shutter curtain" since 2011, like some SLT models and mirrorless cameras. Maybe it is a filed patent Canon held. After several years it was licensed to Sony, so we seen Sony's several camera models got same as the method in 2011.
Canon said about "an electronic first shutter curtain",
Live View Mode also provides the option for Silent Shooting. In Live View Mode, the camera makes use of an electronic first shutter curtain for Silent or Low Shock shooting.
Also, when the eos 1dx launched, Canon again told us,
The electronic 1st shutter curtain method
This method can ultimately drive away the lastly rudimental image-blurring from the vibrations of the 1st curtain of the focal plane shutter. The sensor's imaging resolution fully shown up, and is the better sharpness.
Canon in eos 5d3 page said below,
(Japanese character cannot be shown here DPR page)
Canon so-called "Silent mode" in eos 5d3 has some new changes. Besides the electronic 1st shutter curtain in the Live-View mode can be selected to be Zero vibration, further, --- in the SLR shoot manner provides an optional deceleration shoot mode with 3 fps, the mirror drive device can be switched to a low gear, much lesser mirror slap vibrations, the eos 5d3 mirror drive has dual builds. With low-speed mirror flips 3 fps and the electronic 1st shutter curtain mode combine together, for you can also shoot with the OVF manner in low vibrations.
Deficiencies, the eos 5d3 focal plane shutter is still lacking a decelerated drive mode. But in OVF shoot manner here can also use the "Silent" mode, it is actually with low-speed 3 fps and the electronic 1st shutter curtain mode fit together, thus gets low vibrations.
Also, Canon tell us,
some lenses could get CD-AF problem in Live-View, a long time's Live-View shooting could arise much more heat in the 5d3 body with other problems. (Since the 5d3 mirror box is plastic, so it is adversely to the sensor's heat dissipation).
In Nov 2012, looks the newest Sony NEX-6 got some nice changes, an OLED XGA EVF built in the body, but the old NEX models were no viewfinder on the bodies. The hybrid AF system with both on-sensor PD-AF and CD-AF. Sony said below,
With an electronic 1st shutter curtain and the 2nd curtain of the mechanical shutter to take an exposure together, the shutter time lag is much shorter. The NEX-6 the electronic 1st shutter curtain mode can be turned on or off. (Sony keeps silent to the vibrationless in tacit, and is with the continuous shooting up to 10 fps. With the vibrationless body and high fps both are simultaneously realized).
In autumn 2012, Canon EOS 650d and Sony a99 both have already employing on-sensor PD-AF for hybrid AF system, thus the Live-View shoot gets further forward.
In currently, Nikon DSLR cameras have not yet employ the electronic 1st shutter curtain, nor a deceleration shoot mode. Nikon need to catch up, in Zero vibration.
I expect Nikon improves on the d800s and the d600s. Certainly, Nikon d7100 should firstly be improved.
The patent cross-licensing was often appeared in between some companies. What time could Nikon be to get authorized from the Canon patent?
"an electronic 1st shutter curtain mode". -- "a hybrid shutter mode"
Actually, it is no any electronic blades added into the frontside of a pixel,
that merely electronically control to read info from the pixels, and then with the 2nd curtain of the mechanical shutter to stop exposure together.
So, an electronic 1st shutter curtain mode would not change the sensor's imaging quality.
In a DSLR camera, the shutter still has the curtains both 1st and 2nd, when the SLR manner shooting that was needed a pair of curtains.
Nikon 1 V1 and V2 have both vertical-run focal plane mechanical shutter and electronic shutter. Nikon 1 J1 and J2 has no mechanical shutter. These electronic shutters are merely similar to compact cameras. However, it has no hybrid shutter mode, no an electronic first shutter curtain mode.
Another incidental topic,
If wanted the camera handheld-wobble-lessen function could get maximal efficiency, must firstly eliminate the camera's internal vibrations, no else way. When people who blame the VR, SR, IS, AS to get soften of the imaging, in fact that is because including the focal plane shutter 1st curtain's bounce vibrations. The VR, SR, IS, AS, these are nothing camera's internal vibrations helpful.
What's better than mirror lock? published in Oct 2009
In Nikon D800e validated the vibrations and the tripods
Downloadable PDF file for a registered member, the file is not free. (Japanese), published in 2009,
Chinese translated copy, a simply introduction, it including some charts and explanation.
English copy was cut down the charts and explanation. They writen English camera "shake" that is actually "vibration", the shutter bounce or mirror slap to activate up the forced damped oscillation (vibration).
LumoLabs measured the image-blurring was based on wide angle lens. In actually using, a lighter weight telephoto lens will be more headachy. published in 2010,