Search results for 'sensor cleaning' - page 550
Overcoming pre-flash when using slave flash?
This has been a topic of other threads. If using slave flashes for studio work, or when trying to boost the power available for cameras with built in flash and no socket/hotshoe, many of you have found that the P-TTL/E-TTL and other pre-flash operations cause the slave to fire the other flashes b...
Posted by Taliety on 24/03/2004 - 22:26
280T camera compatibility question.
The "digital" flashes don't work properly with earlier camera bodies. The 280 gun has its own sensor and will work well with any body, either on the hotshoe or remotely with a slave trigger. See: http://www.bdimitrov.de/kmp/technology/hot-shoe/index.html
Posted by George Lazarette on 21/04/2004 - 01:19
280T camera compatibility question.
Let me expand a bit on that. The digital guns don't have a sensor of their own, so can't be used off-camera unless you use the 5p setup, which requires expensive cords and adaptors. On older bodies you lose all the fancy tricks which is what makes these units expensive. You might just as well...
Posted by George Lazarette on 21/04/2004 - 12:31
280T camera compatibility question.
George, I know ;) I found the AF360 on the Z1 would occassionally give me dud results - but then I'd pushed it too far or confused it. However, getting back the slides much later I could never work it out. I'd rather have it the *istD way :D I agree there's something a little 'odd' about the ...
Posted by MattMatic on 23/04/2004 - 12:39
Using AF360FGZ - Red-eye reduction
I will have to check when I get home, but I thought you could scroll through the in-camera flash settings using the small button above the AF/MF switch (or AF sensor switch, I forget which side it's on) until you get the automatic red-eye reduction setting. You're looking for a symbol that, unsurpr...
Posted by mattie on 31/07/2004 - 16:45
Flash slaves - help; URGENT!
Hi. I need slaves for my flashes as I dont want to have mess with all those cables that are necessary for macro close-ups. I want to know if all of these slaves available on the market are good or compatible with my AF280T and Sigma EF-500ST? I had some serious problems (electronic malefunctio...
Posted by Saso E. on 15/07/2004 - 11:10
Flash compatibity
Kim, Yes, C is the ringflash. S is a dedicated flash which can't operate in program mode. I think this means it will tell the camera to switch to flash sync speed, and will operate in auto mode, meaning that the flash will switch off when enough light has reached the sensor (on the flash). B...
Posted by George Lazarette on 13/08/2004 - 23:43
Sunpak 888 AFZ instruction manual?
:shock: ........well I hope there's a few pictures then! Dedicated guns are normally easy to use and fairly self explanatory, they synchronize the flash output to the shutter speed of the camera and the amount of light delivered is either measured by the sensor on the gun or within the camera -...
Posted by Kimbo on 04/11/2004 - 09:28
360FGZ flash test
Why doesn't the 360FGZ, for all the functions it does have, have an exposure test? That may not be the correct name for it, where you set the flash how you want and then fire a test flash, after which the auto sensor indictates whether or not enough light was emitted. I'm thinking in terms of boun...
Posted by selmerdave on 03/06/2005 - 22:08
*istD as wireless controller AND fill-flash?
Hi George Think this is a bit of play on words by Pentax, 99.9% of the population would not expect to see any light if you described something are wireless, wirefree would have been a better description in my opinion, but then you could argue that they are both variations of the same thing, just ...
Posted by McBrian on 14/08/2005 - 17:19
Two flashguns at the same time?
...I hate the interface. I quite agree. Very "dumbed down" :| Pixmantec's Raw Shooter gives me worse results... I found it very noisy, especially on high ISO. But, with a bit of practise I got pretty pleasing results at low ISO. It took time, though, and a couple of reads through the guide to get t...
Posted by MattMatic on 03/07/2005 - 21:08
Compatibility SF7 AF 240 Z
The AF240Z is a reasonable auto flashgun with zoom and bounce that will work with all Pentax bodies which have a hotshoe (including Spotmatics). It has three modes: Program, Auto and Manual. Program works like Auto, but also sets the aperture on the camera (if the camera supports this feature)...
Posted by George Lazarette on 07/07/2005 - 11:00
Wireless Flash Modes
Contrast control involves the use of the flash on the camera plus a separate flash triggered by the first. A slave flash is one that is triggered by another. It must therefore have a sensor of some kind. A master is the flash that triggers the slave flash. It is usually the camera flash, or ...
Posted by George Lazarette on 08/08/2005 - 20:37
increasing shutter speed with flash
Unless you are using a special flashgun, you cannot use a higher speed than 1/150th. This is because at higher speeds only part of the sensor is exposed to light at any one time, so you would get an image which was partly lit by flash and partly by ambient light. Some flashguns emit a series o...
Posted by George Lazarette on 22/09/2005 - 09:33
Why does my AF360FGZ take so long to recharge?
In answer to your last statement, if you need to take a lot of flashes in a row, then the AF360FGT is not the right flash unit for you. You need a gun with a large heavy-duty external power pack. Have a look at guns by Metz for example. I wonder if this could explain some of your problems. W...
Posted by George Lazarette on 24/09/2005 - 21:44
*ist DL and Xtra Flash
Surely it's not possible for the Xtra flash to fire before the one attached to the camera - unless you're using the anti-redeye preflash! It must therefore be a synchronisation issue. There is a miniscule delay between the light leaving the camera's gun, being detected by the Xtra flash's sens...
Posted by Kimbo on 07/10/2005 - 17:51
Thyristors and How They Work?
Hi Mac, The sensor doesn't measure ambient light but integrates the light bounced back when the flash goes off. Once sufficient light is reflected for the correct exposure, it switches the flash off. The closer you are, the greater the concentration of the "returned" light. If you double the distan...
Posted by Kim C on 12/11/2005 - 14:30
Thyristors and How They Work?
Kim, Thank's! So that's why we don't need all kinds of extra calculations for bounce etc.! (As long as the total distance from flash to subject is within the selected range.) I guess it also adjusts for the light absorbancy of the subject - sort of an after-flash instant coupled light meter...
Posted by Anonymous on 12/11/2005 - 15:35
sunpak 544 flash
Thanks, That link will totally help if I to go after a TTL setup. I finally was able to speak with a sunpak rep. Apparently, the TTL functionality of the 645N is not possible with the Sunpak 544. But, the flash still can function in an automatic fashion. The flash has a sensor of its ow...
Posted by Anonymous on 11/01/2006 - 01:53
Thyristor Flash with Slave(s)
Hi Mac. If your two lights are not aimed in such a way as to cause the light from your small light to hit the sensor on your vivitar, (ie- 45 degree angles on iether side of camera, ) then the vivitar will cut out at the fstop indicated on the scale. It will in fact read the light reflecting back t...
Posted by Don on 04/01/2006 - 04:01
