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Forum: Flashes, Lighting, and Studio
02-05-2014, 01:06 AM
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Preflashes shouldn't be problematic as long as you use the built-in flash as master, not as controller.
To use it as controller you must also use a P-TTL compatible external flash (your Metz unit is one of them, Yongnuo isn't).
P.S. just to be clear ... this applies only if you're triggering external flashes with your built-in flash. Yongnuo with a radio trigger works fine.
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Forum: Photographic Technique
07-12-2013, 03:07 AM
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F-number is basically just the ratio of focal length to the diameter of the front element of the lens. It tells you nothing about the amount of light passing through all the glass.
T-number is what you should be looking at if you want to compare lenses.
For example... if you have a lens at f 2.8 and decide to put an ND filter in front of it, the f-number stays at 2.8, but the t-number increases significantly (to let's say 5.6 if you use a 3-stop ND filter and assume 100% light transmission of other glass elements - which is impossible, so in reality the t-number would be even higher).
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Forum: Digital Processing, Software, and Printing
05-29-2013, 11:39 PM
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But you have to take price difference into account ... Topaz Claritiy is 3-4x cheaper than Viveza or Perfectly Clear and still gives you great results.
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Forum: Troubleshooting and Beginner Help
05-23-2013, 09:40 AM
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I finally received them. As it turns out they have replaced the 602 transmitters with 600, but as I understand they're basically the same.
But there is a (big?) problem! :( I have a K-30, the 602's, Metz 58-af2 on the receiver and two YN-560 III (they have receivers built-in).
So when I half-press the shutter release and then don't take the picture, all flashes fire when the viewfinder display turns off (if I'm right, that is when camera stops metering).
Please tell me someone here knows how to fix this :)
P.S. Flashes seem to fire perfectly every time I actually do take the picture, but there is an awful lot of flashing when I'm just preparing to take the shot :D
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Forum: Troubleshooting and Beginner Help
05-06-2013, 02:46 AM
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OK ... the N version is being delivered ... will report in about a week how it turns out :)
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Forum: Troubleshooting and Beginner Help
04-26-2013, 12:40 AM
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So for K-30 I need the C or the N version?
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