Search results for 'back focus' - page 1918
Flash Autofocus assist
I think that all the Pentax digital flash guns, like most recent camera bodies, are able to project an infra-red target for the auto-focus system to focus on. The only problem is that, whilst they work well in total darkness, they don't operate in the twilight zone. G
Posted by George Lazarette on 16/02/2006 - 22:42
Flash Autofocus assist
thanks for the advice guys! so Don, i could get my hands on a laser or something of that sort, but how would i actually connect it to the camera to turn on when the camera attempts to focus? is that possible at all? it must be somehow possible if external flashes have the ability, it may just be ver...
Posted by Q on 17/02/2006 - 04:14
Flash Autofocus assist
I'd try running a wire spliced into a homemade wired release (search the threads for that one) and solder the wires to the circuit board of the laser's power switch, maybe with a relay and or resistor to activate both at once. Maybe wire it to a hotshoe adaptor. might be easier to handhold a laser ...
Posted by Don on 17/02/2006 - 05:06
Flash Autofocus assist
AFAIK, it's not actually a laser in the flash guns. At least it doesn't appear to be coherent light. The AF360 projects quite a large grid pattern - it's not just a single dot. The aim isn't to illuminate the subject, but to project this contrasting pattern of near IR light onto the subject so th...
Posted by MattMatic on 17/02/2006 - 06:12
Flash Autofocus assist
See, and I couldn't for the life of me figure out why you'd burn out the retinas of your subjects. Who am I to judge...so I tried to figure out what could be done with what you were asking... I envisioned a tripod mounted gun with the camera acting as both scope and trigger. I was hoping if that b...
Posted by Don on 17/02/2006 - 16:03
Flash Autofocus assist
they say you learn something new every day... Well my second AF360 arrived today and I've been playing. So i thought i'd have a trawl through here to see what tips i could pick up. Then i saw this thread - and remembered that i'd been wanting to ask about using SB mode on the flash. It seeme...
Posted by dexteruk on 21/12/2006 - 00:41
Using multiple AF-360FGZ flashguns
I've studied the manual for this gun and the configuration I am considering is not listed. I have mentioned in another thread my wish to make a dual flash macro rig and high powered guns seem to be recommended. Can anybody tell me if 2 AF-360FGZ's can be used off-camera in wireless mode, using...
Posted by Mannesty on 18/02/2006 - 01:08
For people with overexposure on DL/DL2/DS2
[quote="golfdiesel"]I have read that the DS is the last camera to support normal TTL mode flashing. The DL, DL2, DS2 only support P-TTL and revert to 100% power flash with any other flash. This explains the overexposing many people find with the DL in combination with flashes other then...
Posted by ScottyH on 23/02/2006 - 22:55
For people with overexposure on DL/DL2/DS2
I guess that I've spent so many years doing everything manually that it doesn't matter to me if I have to spend a couple of seconds setting up the flash units. Plus with the instant feed back that a digital gives, and the fact that you can adjust the EV so quickly with your eye to the viewfinder, i...
Posted by LiamD on 24/02/2006 - 12:02
Full Function Flash for Pentax Super Program (Super A)
Hi Experts! I'm slowly acquiring gear to complete a Super Program I've been entrusted with. I have an f4 35 - 70 A Zoom working its way through customs and am now in the hunt for a decent dedicated flash which will utilize the Super Program's TTL(?) capabilities? (My manual is also on its way). ...
Posted by Anonymous on 28/02/2006 - 02:39
AF360 FGZ FLASHGUN
As a final note, there's a custom setting in the *ist-D which disables the pop-up flash in wireless mode. When disabled, the pop-up contributes almost no light to the image (except for a tiny burst which appears as a very helpful catchlight in the eyes). The default is for both the pop-up and the AF...
Posted by George Lazarette on 18/03/2006 - 21:30
metz flash vs. pentax 360 or 500 on the Ist DS
the 360 works great with my old 50mm 1.7, and my old 85mm soft focus. my 500 ftz did not. the 500 ftz tends to overxpose by 1.7 stops at all times on newer lenses (fixable by adding -1.7 stops in the flash exp menu). when tethered to the 360 the flashes will do contrast control, on my ds2.
Posted by Don on 01/09/2006 - 05:05
Red Eye in individuals.
only 2 factors cause red eye. A) lack if melonin- albinoism (I'd like to figure out how the albino in the davinchi code could've been driving at night or shooting people, as all albinos are vision severely impared to clinically blind as a result of the condition). b) flash bouncing off the retina ...
Posted by Don on 15/05/2006 - 21:12
Red Eye in individuals.
Liam, The red eye is the reflection off the retina at the back of the eye, so it has nothing to do with the iris colour on the front. You need a couple of things for red eye - 1) An open pupil - this often happens in subdued lighting. If the person's pupil response is slow, their pupil may not c...
Posted by MattMatic on 15/05/2006 - 21:34
Red Eye in individuals.
Anatomy of the eye (at least, the bits contributing to redeye in your pics). The iris is what gives our eyes their colour. The pupil ( the black part in the centre of the iris) is the variable opening (aperture) that regulates the amount of light that enters the eye. The retina is the innermost c...
Posted by Mannesty on 15/05/2006 - 21:34
Red Eye in individuals.
Only 2 factors cause red eye - lack if melonin- albinoism . . all albinos are vision severely impared to clinically blind as a result of the condition) This isn't quite true. Yes all people that suffer from albinism have vision problems and some have visual acuity that classifies them as legally bli...
Posted by promhandicam on 15/05/2006 - 23:52
Red Eye in individuals.
. . more accurate for me to have said many instead of all right? Don, Yes you are right – many albinos have disabling visual problems but albinism is a very complex condition. For example for some albinos it is only their eyes that are affected – they can have dark hair and skin that tans. A...
Posted by promhandicam on 16/05/2006 - 10:05
AF540FGZ now in the UK
I saw this flashgun on the Pentax stand at Focus on Imaging and was told it would be available around the middle of April. Yesterday I was told it was in Jessops stores but searching their web produced nothing. Today I phoned Jessops main order line and they also said they have no record of this ...
Posted by Brian E on 19/05/2006 - 18:03
AF540FGZ now in the UK
Ok - (another) quick report! The AF540FGZ performed absolutely flawlessly over the weekend. A real joy to work with this beauty. The controls and functions are identical to the AF360FGZ. Pentax have improved some of the buttons and dials - for instance the selector dial is now much easier to r...
Posted by MattMatic on 22/05/2006 - 14:58
Pentax and other flahses are unreliable in slave mode. Why??
Thanks. I am using dumb mode (setting #2). I have the dial on the camera set to M, and am not using any special flash modes (red-eye, or wireless communication). From what you stated, it sounds like there is some sort of pre flash even in full manual mode. Any idea why that would be necessary? T...
Posted by amoringello on 13/07/2006 - 01:47
