All Forum Comments
Comment by George Lazarette posted on K10D Inside Building. at 02/11/2007 - 11:04
If the last, experiment a bit, and best of all, use a grey card.
Although I have to say that, in a building with multiple light sources (especially a mixture of halogen and tungsten), correct colour balance is always going to be tricky.
NEVER throw away pictures with which you are dissatisfied until you have identified the cause of the problem.
And 99% of the time, it is safe to blame the user, not the equipment.
I would hazard a guess that the camera was set to daylight colour balance, but we'll never know.
G
Comment by George Lazarette posted on K10D Inside Building. at 02/11/2007 - 10:38
I knew what he meant. 1/60 must be less than 1/125 because 60 is a smaller number.
One day I hope to use a word he doesn't know, too.
G
Comment by George Lazarette posted on AF 360FGZ Flash speed sync question at 03/11/2007 - 00:17
If the shutter speed is 1/4000 than the exposure simply can't last 1/180s or am I wrong? But anyway it seems to be correct that the flash should 'flash' at least 20x so that the whole frame is properly exposed. Any other ideas, links?
You can either take a conventional flash exposure, with any old flashgun, and the flash will fire while the shutter is fully open.
The length of time a shutter is fully open varies from camera to camera, but with a focal plane shutter is usually no more than 1/250, and generally rather less. This is the "flash sync speed".
With HSS, the flash sync speed doesn't apply. The gun fires a number of flashes as the slit formed by the shutter moves across the sensor/film. Provided they can sync it right, and the flashgun is powerful enough, there is not really any limit to the HSS speed. On the K10D sync'ing can be at the camera's maximum shutter speed.
G
Comment by George Lazarette posted on AF 360FGZ Flash speed sync question at 02/11/2007 - 12:58
High speed sync works by taking multiple flashes at different points in the shutter cycle. Normal flash requires the shutter to be fully open when the flash fires (once), and the shutter is only fully open at speeds of 1/125 and below.
G
Comment by George Lazarette posted on AF 360FGZ Flash speed sync question at 02/11/2007 - 10:50
G
Comment by George Lazarette posted on Classic harbour scene, but does it work? at 02/11/2007 - 10:57
Simple really.
G
Comment by George Lazarette posted on Very interesting article. at 01/11/2007 - 10:27
50/1.4 on film
35/2.0 on digital
G
Comment by George Lazarette posted on Your Choice ? at 04/11/2007 - 11:08
For me, the 77mm Ltd.
G
Comment by George Lazarette posted on Your Choice ? at 01/11/2007 - 10:30
Or - "Haven't we come a long way in three thousand years".
(Please excuse the colour - it was taken through a tour bus tinted window.)

*Ist D, 24-90, ISO 200, f8, 1/640, 90mm, -0.3 EV, aperture priority.
G
Comment by George Lazarette posted on Weekly Competition #17: The Mark of Man at 03/11/2007 - 23:27


Well, these were with my K10D, under mixed (fluorescent and halogen) lighting, ..........
Dan
The problems occur when different parts of the image take their primary lighting from different sources. You then can't get the colour balance correct for everything.
G