Question about Cameras

Open Question

Digital billboard early ttl

Posted by on

  • Lawrence Oravetz May 04, 2017

    Hi Tony Klock, I want to help you with your question, but I need more information from you. Can you please add details in the comment box?
    Nothing in your post gives any information as what your problem is. Could you elaborate?

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Are the political billboards going up in TN on Oct. 1 a fact?


to the rich republicans not poor slobs or even paycheck to paycheck drones.

Oct 01, 2014 | billboard.com Computers & Internet

4 Answers

What is outdoor advertising?


Outdoor advertisement is a type of advertisement targeted outside of consumer's personal places. The locations include roadside, shopping malls, grounds and so on. The outdoor advertising ranges from billboards, aerial advertisement, mobile ads etc which can easily catch the eyes of consumer. Outdoor advertisement works well for promoting your products in specific geographic areas. Video Billboard Network

Jan 17, 2014 | Cars & Trucks

1 Answer

How to get vivitar pro 548 series 1 to work on nikon d90


The TTL contacts on the Nikon are different to the Vivitar.
You can put a remote flash trigger in the Vivitar and use the Nikon's built-in flash to trigger the Vivitar flash using the remote flash trigger.

Aug 15, 2012 | Vivitar PRO-548 Series 1 Digital TTL Shoe...

1 Answer

SB-600 flash suddenly dead. Found some early corrosion on the AA batteries. What happened? Repairable?


Hi degossman, Corrosion is sometimes a fix us users can do. Other times it must go in for repair. What happens is the corrosion may leak past the point we can see in to the internals of the housing eating out wiring.
Nikon digital 1-800-645-6689

Nov 30, 2010 | Nikon Speedlight SB-600 TTL Flash

1 Answer

Ttl auto does not work


Digital Camera Fully Compatible, Newly Developed S-TTL System "S-TTL" enables TTL auto shooting by an external strobe for a digital SLR camera as well as for a point & shoot digital camera.
INON S-TTL auto strobe supports any manufactures' model providing highly accurate exposure control.
Film camera era without strobe selection problem TTL stands for "Through The Lens" and TTL auto strobe system controls flash amount to provide correct exposure based on calculation by camera's internal sensor metering reflecting strobe light from a subject through the lens. This TTL system meters actual light amount reflecting from a subject providing accurate exposure.
When we start with the history of underwater TTL auto strobe, underwater camera?"NIKONOS V" released in 1984 was the first to provide automatic TTL flash control for underwater strobe SB-102, SB-103 succeeded by NIKONOS V compatible underwater strobes form other manufactures. The 5 pin electrical sync connector for NIKONOS V is most popular and widely adopted to connect an underwater strobe and underwater film camera (underwater camera/housing).
A film SLR camera has flexibility to select an underwater strobe. As far as housing has NIKONOS type electrical sync connector and properly wired, automatic TTL flash control is usable with any TTL auto strobe like Nikon SB-105, INON Z-220, Z-22 connected via electrical sync cable.
NIKONOS type 5 pin electrical sync connector and NIKONOS V with INON Z-22 strobe
white1px.jpg
Film camera compatible strobe is not usable for a digital camera!? Underwater TTL strobe circumstances have been drastically altered with the spread of digital camera among divers. Some underwater housing for digital SLR camera has NIKONOS type electrical 5 pin sync connector as same as film camera housing. Since the housing has same NIKONOS type sync connector, existing film camera compatible underwater strobe has been considered compatible with a digital SLR camera via 5 pin sync cable but happened to experience error message on the digital camera or blackout on an image even the strobe worked. Why this happened?
This is because automatic TTL strobe system difference between a film camera and a digital camera.

The film TTL auto system makes single flash while digital TTL auto system employs pre-flash type making two to three flashes. Film TTL auto strobe system starts firing at the same time the shutter opens and reflecting strobe light from a subject is recived at a film. The reflecting light on the film is metered by the sensor to determine when to cease firing for correct exposure. This process takes only about 1/1000 second.
In contrast, digital TTL auto strobe system can not calculate adequate exposure based on reflecting light from a subject since image sensor (CCD/CMOS) reflectivity is comparably low comparing to a film. So digital TTL strobe system gives preliminary flash for very short period of time (pre-flash) just before the shutter opens metering reflecting light from a subject by the sensor to calculate necessary amount of light for correct exposure and starts emitting main flash at the same time the shutter opens. Canon E-TTL and Nikon i-TTL employs this system.

When we connect conventional film camera compatible TTL strobe to pre-flash type digital SLR via sync cable, the strobe makes full dump by pre-flash signal then the shutter opens before the strobe has been fully charged resulting in quite under exposed image only with ambient light. Even two time flash compatible strobe like INON Z-220 strobe, does not fully support a digital TTL and force to use Manual flash mode.





Film SLR:
A strobe starts firing at the same time the shutter opens and quenches firing when correct exposure has been obtained.
A film compatible TTL strobe connected to a pre-flash type digital SLR via electrical cable flashes does not support TTL auto exposure resulting in synchronization only with first pre-flash or totally uncontrollable.
white1px.jpg
The birth of digital fully compatible S-TTL S-TTL auto compatible INON D-2000 strobe and Z-240 strobe works in TTL auto mode by simply setting their main dial to S-TTL position. A film camera seems to depend more on photographer's skill, experience and feel since the camera does not allow checking images on site. A digital camera allows us to check images right after shooting and enable to try to shoot again as much as we like. And high capacity memory card further allows to shoot hundreds of images. The digital camera makes entry level of underwater photography getting down and nowadays more people buy a digital SLR camera and underwater housing even they have just started underwater photography. However underwater photography gets more difficult because underwater strobe does not work in TTL auto.
INON is among the first to support digital TTL auto system with "S-TTL" auto mode equipped D-2000 strobe and Z-240 strobe.
The proper name of S-TTL is "Optical Synch TTL". S-TTL enables to perform in TTL auto exposure as same as genuine TTL strobe from camera manufacture, based on camera's built-in flash light to use as a signal to be transmitted to a strobe. S-TTL uses digital camera's built-in flash light not as a light source but as like a controller to trigger S-TTL strobe.
The built-in flash of a digital camera makes weak flash (pre-flash) before main-flash to calculate exposure. This pre-flash is transmitted to S-TTL strobe to control the strobe to make pre-flash to a subject. The reflecting light from the subject goes through the camera's master lens to an image sensor then a processor calculates main flash light amount for correct exposure.?Finally the built-in flash makes main-flash which is transmitted to the S-TTL strobe to cause main-flash of the S-TTL strobe.


Digital camera's built-in flash lights are transmitted via an optical fiber to the
S-TTL strobe to make pre-flash and main-flash instead of the built-in flash.
white1px.jpg

Apr 30, 2010 | Olympus FL-20 TTL Flash

1 Answer

Quantaray QDC-NK i TTL Digital Flash Module


The Quantaray Digital NK Module has a small tab on the side of the raised boss that the 8 pins sit on that prevents it from mounting on the QTB-9500A. It's intentional- the NK Digital Module is made for newer Quantaray flashes only. You'll need the older-style AF NK Module to attach to the QTB-9500A.

Apr 06, 2009 | Quantaray QDC-NK i TTL Digital Flash...

1 Answer

Flash on ist DL


Looks like its true... Another major disadvantage. Removing TTL means removing one more hardware piece - TTL sensor. Pentax removed almost every nice feature, which needs some aditional or more expensive hardware: no TTL flash, less AF points, pentamirror... Seems like I bought Ds right in time.

Sep 08, 2005 | Pentax *ist DL Digital Camera

1 Answer

Built-in flash and an external flash simultaneously


Yes, please see the following table: Optional Flash Flash Control Mode Capacity FL-50 TTL Auto (Super FP flash)/ TTL Auto/ Auto/ Manual/ Manual (Super FP flash) The FL-50 flash can be connected with the E-300 camera through flash power grip: FP-1 and flash cable: FL-CB05. FL-40 Auto/ Manual The external flash cannot be used with the built-in flash. * Only Auto and Manual mode can be set in the concurrent use of FL-40 and the built-in flash. (For their specification design, E-300 and FL-40 can not communicate in TTL Auto and R-TTL Auto modes.) FL-36 TTL Auto (Super FP flash)/ TTL Auto/ Auto/ Manual/ Manual (Super FP flash) The external flash can be used with the built-in flash.

Sep 04, 2005 | Olympus EVOLT E-300 Digital Camera

1 Answer

Flash


Yes, the FL-CB05 Shoe Mount TTL flash cable will allow full TTL capability with the FL-40 flash off camera.

Aug 31, 2005 | Olympus Camedia E-20N Digital Camera

Not finding what you are looking for?
Cameras Logo

Related Topics:

41 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cameras Experts

kakima

Level 3 Expert

102366 Answers

Steve

Level 3 Expert

3287 Answers

yadayada
yadayada

Level 3 Expert

74945 Answers

Are you a Camera Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...