Your digital camera’s shutter consists of two curtains. These are referred to as the first curtain and the 2nd curtain (or as some photographers prefer to name them the entrance curtain and the rear curtain). These two curtains are usually shut to forestall light from reaching the digital sensor or photographic movie.
When taking an publicity of a scene, you sometimes press the shutter launch button. What occurs then is that the primary curtain opens, to reveal the sensor or movie to light and register your scene, and the second curtain then follows it. On the finish of the publicity each curtains are then reset to their authentic place for the following shot.
2nd curtain sync (or rear sync) is a photography approach that’s normally used when capturing in low light situations, with a gradual shutter velocity and an on-camera flash.
Whenever you’re capturing with an on-camera flash, the flash both fires proper after the primary curtain opens or it fires simply earlier than the second curtain begins to shut. If the flash fires proper after the primary curtain opens, that is known as 1st curtain sync (or entrance sync). If the flash fires proper earlier than the second curtain begins to shut to finish the publicity, that is known as 2nd curtain sync (or rear sync).
The default setting on cameras is the first curtain synchronization mode. You’ll be able to in fact change your flash sync mode from the digital camera’s menu settings or the speedlight itself to have your flash hearth in 2nd curtain synchronization mode.
So why would you need to set your digital camera to 2nd curtain sync mode?
2nd curtain sync is helpful when capturing with an on-camera flash with lengthy shutter speeds. Throughout lengthy exposures, any movement or transferring objects will seem blurred and have tell-tale trails within the closing picture indicating the course of their motion.
Now, think about your flash is about to fireplace as soon as the primary curtain opens and you’ve got a transferring topic. The curtain opens, the scene begins to document onto your sensor or movie. The flash fires and consequently your foremost topic within the body is frozen in time at no matter state they’re at. Now for the reason that publicity time is lengthy, your topic will usually begin to transfer however the sensor remains to be uncovered, proper?! Now every little thing within the scene remains to be getting recorded together with your transferring topic. On the finish of the publicity, the second curtain begins to shut and the publicity is ended.
Lets return a little bit bit: your topic is frozen, they begin to transfer, their motion is registered blurry. As a result of the topic is first frozen after which their motion is recorded afterwards, you’ll have the inform tail trails in entrance of them within the closing picture. Now this is perhaps what you need, by which case the end result you bought is okay. However logically, you’ll need the blurry motion recorded first after which your topic frozen leaving its inform tail trails behind them as an alternative of in entrance of them, proper?! More often than not yeah, until you are going for a unique impact.
So what do you do to get your topic’s blurred trails of movement behind them? You merely set your flash to fireplace in 2nd curtain synchronization mode! Whenever you set your digital camera to 2nd curtain sync, the primary curtain opens and every little thing occurring within the scene is being recorded. Now, for the reason that publicity time is lengthy, all these happenings are being blurred. Because the publicity involves an finish, the second curtain will begin to shut. Because you’re in 2nd curtain synchronization mode, the flash will hearth proper earlier than the second curtain begins to close. This fashion, you could have all movement blur trails registered, after which on the finish of your publicity the flash fires freezing your topic at whichever state they’re in the intervening time, and you’ve got your movement blur behind the topic as an alternative of in entrance of them. Fairly neat, huh 수지커튼?!!
How one can set your digital camera to 2nd curtain sync mode?
How one can set your flash to fireplace in 2nd curtain sync mode is determined by your kind of digital camera. Canon cameras let you set 2nd curtain sync mode both from the digital camera settings menu or from the again of the speedlight itself. With Nikon, you possibly can solely set the on-camera flash to 2nd curtain sync out of your digital camera’s settings menu.
To set your flash to 2nd curtain synchronization from the digital camera menu, browse to the Flash Management menu (the naming may differ relying in your producer, nevertheless it’s gonna be one thing very related). From there, scroll right down to the flash operate settings, and click on OK to enter that menu. Scroll right down to shutter curtain synchronization and select 2nd curtain sync, as an alternative of the already pre-set 1st curtain sync choice.
To set your flash to 2nd curtain sync from the again of the speedlight itself (this works for Canon customers and never for Nikon customers), you could have a button in the back of your flash gun with a drawing that appears one thing like a lightning bolt with the letter “H” accompanied by three adjoining triangles. Hitting this button time after time allows you to cycle among the many completely different accessible flash modes you possibly can select from. Hit the button a pair occasions and you may see that drawing of the three adjoining triangles light up in your speedlight’s LCD display screen, this implies you are then in 2nd curtain synchronization mode.