[elektro-etc] Cullmann DC32 vaku, SCA300
Bali Zoltan
eltexto at freemail.hu
Tue Jun 17 16:42:19 CEST 2014
Köszi a linket. Mintha olvastam volna már ezzel kapcsolatban.
De még mindig nem jön le, hogy látható vagy IR.
Na, Canon DLC-ben ezt találtam:
"
This QuickGuide will explain how to use the Integrated
Speedlite Transmitter feature incorporated in
Canon EOS 7D, 60D, and Rebel T3i (660D) cameras.
This feature uses the camera’s built-in flash unit to wirelessly
trigger one or more off-camera (slave) Speedlites, either
individually or in groups. Compatible Speedlites include the
580EX II, 430EX II, 320EX, and 270EX II. Settings can be
controlled from the camera by using the camera’s menu interface.
Speedlite exposures can be either fully automatic or fully manual.
Flash output ratios are fully adjustable. The built-in Speedlite can
either contribute to the flash exposure or trigger the slaves
without contributing to the flash exposure.
"
És a menüben is a "Built-in Flash function setting"-nél
lehet választani a wireless-t. Nekem az jön le, hogy a
a flash-nak most, wireless parancsadási funkciója is van.
Na mindegy, ha hazajönnek a géppel, leanalizálom a villanást
ebben a módban.
Köszi
Üdv. Zoli
2014.06.17. 15:58 keltezéssel, Topybear írta:
> "Canon’s wireless E-TTL system employs brief digitally-encoded pulses
> of light (either visible or infrared, depending on the master unit
> used) to transmit commands from a master flash unit to a slave unit or
> multiple slaves. Since the system relies on special digital messages
> built into the light pulses it’s immune to the problem that regular
> optical slave flash units have - that of being triggered accidentally
> in response to other flash units firing. (unless you’re near other
> photographers who are also using Canon wireless flash units, of
> course)
>
> Wireless E-TTL doesn’t use radio signals like many third party
> systems, so you can’t trigger flashes remotely from great distances,
> such as the other side of a sports arena. And infrared signals are
> thwarted by walls and tables and other barriers. But it’s ideal for
> quick, portable and flexible flash setups in smaller spaces. Canon
> chose light-controlled wireless rather than radio partly because it’s
> cheaper to implement and partly to avoid the regulatory nuisance of
> getting licensing approval for radio transmitters from every country
> in which Canon sell photographic gear.
>
> Canon’s wireless system requires at least two wireless-capable flash
> units in order to work. A master flash unit is attached to the
> camera’s hot shoe (either directly or using the Off-Camera Shoe Cord)
> and the slave flash unit or units are set up to illuminate the scene
> as desired. At time of writing, only one EOS camera – the EOS 7D – can
> use its built-in flash unit to control slave E-TTL units. All previous
> EOS bodies with built-in flash require an external wireless E-TTL
> master device. "
>
> http://photonotes.org/articles/eos-flash/index3.html#wireless
>
> Teljes egészében: http://photonotes.org/articles/eos-flash/
>
> Topy
>
>
> gyapo <gyapo at freemail.hu> írta (2014. június 17. 15:49):
>>> Hopp, most olvasom az EOS wireless beállítást,
>>> fel kel nyitni a beépített vakut! Lehet a
>>> beépített vaki "morzézi" le a "wireless command"-ot
>>> exponálás előtt?
>>> Ezt máshol is írták(hogy kell a beépített vaku).
>> Nem a villanás hosszával vezérli a külső vakut, és közben méri a
>> beérkező fényt?
>>
>> Üdv.: gyapo
>>
>
>
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