Search results for 'sensor cleaning' - page 560
Using *istD with standard TTL flash
One common mistake is to leave the red-eye reduction setting on giving the impression that a pre-flash is occurring, when in fact, it isn't, or may not be. TTL flash employs feedback from a sensor inside the mirror box which measures the light reflected from the film/sensor surface. Could your *i...
Posted by Mannesty on 11/06/2011 - 13:04
Using *istD with standard TTL flash
Both Metz's were on TTL mode , I remember the easy mode on the 50 , but am not sure it exists on the 70 .... I did go round the various modes on the Metz , having fully reset it as well - this included checking the zoom was set for APS sensor size , tried rear curtain sync on and off ( along with...
Posted by Pontoneer on 11/06/2011 - 18:53
Rear curtain sync...
the flash is triggered just before the shutter closes, so you have movement and then the final position is fixed on the sensor. It's a very nice effect with slightly longer shutter speeds and moving objects (1/50 and lower). Bret
Posted by bretti_kivi on 20/06/2011 - 22:08
Older flash guns
Well I have the AF240Z so I can advise there: If you set the camera to X, set the flash to Auto, and set the ISO and aperture to the values the flash expects, the flash's own light sensor will set the light output for the correct exposure (assuming the subject is within the right distance). If...
Posted by Dangermouse on 15/07/2011 - 20:59
Older flash guns
Hi Matt, Thanks for that I'll try those settings next time I'm out. The 260SA is On/Off (apparently fixed at "P") - I've downloaded the manual for it but it's a bit "thin" on relevent info. I got this as I couldn't find the 160 that you recommended months ago. I too intend carrying with me ...
Posted by Frogherder on 17/07/2011 - 16:35
High Speed continuous flash
Because he didn't use HSS might be the answer :wink: HSS most of the time drain all of the stored energy. For example when you set the flash on 1/16th power you can surely fire it 16 times continuously. Problem with HSS is, that it might need to fire 8 times already to cover the whole sensor fo...
Posted by Anvh on 05/09/2011 - 12:29
High Speed continuous flash
Because he didn't use HSS might be the answer :wink: HSS most of the time drain all of the stored energy. For example when you set the flash on 1/16th power you can surely fire it 16 times continuously. Problem with HSS is, that it might need to fire 8 times already to cover the whole sensor fo...
Posted by karthikv82 on 05/09/2011 - 12:43
High Speed continuous flash
HSS needs to fire multiple times to cover the sensor because the shutter is infront of the sensor at the time the flash fires. So the faster the shutter speed you use the more the flash have to fire, at 1/1250 it probably needs to fire 7 or 8 times at 1/16th instead of 1 flash at 1/16th if you used...
Posted by Anvh on 05/09/2011 - 13:10
Problem with two flash guns
Peter The tx has a test button and more often than not both flashes go off (to my eyes) simultaneously, but not when initiated by the camera???. I've run through all the combinations of channels and it's the same. I've swapped rxs and flashes over to try and isolate anything Matt Thanks for th...
Posted by Frogherder on 11/10/2011 - 20:59
Problem with two flash guns
With my studio flashes I use one radio trigger and any head that doesn't have a built in sensor is fired optically with this sort of thing: Simple and virtually nothing to go wrong.
Posted by gartmore on 13/10/2011 - 08:51
TTL v p-TTL
TTL equipped camera bodies have a light sensor inside the mirror box which measures the light reflected from the film or sensor. This measurement is used to turn off the flash when enough light has reached the film or sensor for a correct exposure. In TTL, the flash starts the process of illumina...
Posted by Mannesty on 29/10/2011 - 22:37
TTL v p-TTL
So current bodies ie kx kr k7 and K5 are only p TTL? Yes, P-TTL only for any Pentax body newer than the *istDS, and maybe the *istDS2. No newer Pentax DSLR's can use TTL flashes unless the flash has manual and/or auto modes. If you fit, say an AF280T to a modern Pentax DSLR and set the flash to TTL ...
Posted by Mannesty on 29/10/2011 - 22:48
TTL v p-TTL
Also note that TTL requires a separate sensor for picking up the reflected light off the film. P-TTL, on the other hand, uses the same light metering that you use for non-flash work. For the K5+K7 that means 77 segment metering (which wasn't possible with TTL). That said, don't discount "A" mo...
Posted by MattMatic on 31/10/2011 - 11:43
K-5 Metz Wireless totally Underexposed
Some progress. I think my problem was caused by having the flash to close to the subject, the distance sensor on the Metz must be picking this up, I'm sure someone will correct me if this is/was not the case. I had better results with the Metz placed further away from the subject and I've also trie...
Posted by Klian on 18/11/2011 - 15:23
Wireless Radio Flash Trigger
There are probably some other threads with specific kit recommendations. Some have mentioned "cactus". I have the Seculine and it works over a fair distance. If its a few metres the built in wireless functions work(should) with the K-5 and Metz 58. My K-7 etc do wireless with my Sigma EF500 su...
Posted by NaimKhan on 11/01/2012 - 21:37
Wireless Radio Flash Trigger
From using the built in wireless I understand it can control more than 1 flash at a time, although they all need to work the same way, the Sigma has settings for slave flashes and different channels too. I use it this way when I need just a single flash. The advantage is the camera turns off the fl...
Posted by dougf8 on 11/01/2012 - 22:16
my flash choices........but which one?
The AF-540 is certainly worth getting if you can find the money. If not, go manual. You will then have a huge choice of guns available, and will be able to do what is really ideal, and that is to have two flashguns, one on camera and one remote. The latter can be triggered by wire or slave ...
Posted by George Lazarette on 29/02/2012 - 11:27
Cobra Auto 210
Hi Mark, The 'Auto' apertures (red/blue etc.) use the sensor on the front to kill the flash output when it detects the right amount of light has been received by the subject. The distance associated with these apertures are maximum and if closer the flash automatically reduces the duration of the...
Posted by johnha on 06/04/2012 - 17:52
Strobist 101
I also assume this means that the PC port wont sync at high speed You are correct ;) What is not apparent is the fundamental technical difference between 'regular' flash and HS. Regular flash works like this: * Mirror up * Leading curtain of shutter opens all the way * Flash fires, then shutte...
Posted by MattMatic on 09/03/2012 - 13:44
Miranda 700 cd with Kx
Any body there knows solution??? This Miranda 700CD is a very old design and is either not compatible with current and recent Pentax DSLRs or is faulty. Either way, you should send it back and try to get a refund. In my view, your options are to save until you can afford to purchase a flash unit ...
Posted by prsjnb on 15/03/2012 - 20:46
