Response to Nino
Years ago, in the tube camera days, I had a couple of instances where we couldn’t shoot at radio stations because the transmitters were putting out so much RF that it was creating black diagonal lines in the video. My viewfinder looked like the second cousin to a zebra. CCD’s and better shielding have pretty much eliminated that type of problem in this day and age.
I use to have a half-inch DVC-PRO camera some years back that had a similar problem, only this was when ever I had to gain the camera up. Black lines, pulsating though the darker areas of the picture. The engineers said that there was a screw blocking the optical path. Funny that if they knew what the problem was why on earth they could they never totally fix it.
But I digress…
Yes I did contact the manufacturer. I explained the situation but since they didn’t have either of the two camera models I have to perform tests on, they wouldn’t be able to duplicate the problem. From then on they pretty much washed their hands of me, although in fairness I honestly believe that they would have refunded my money had I asked. But I did my homework, thought about the purchase and have decided to keep the light. Now the trick is finding ways to use it. As I’ve said it does make for a nice accent light but has very little throw. Would I buy a Zylight again – no! Not at least until they produce a model that can actually be used as an on-camera light under real world conditions at a cost that is more in line with most of the other standard on-camera lights. I’ve shot too many important, ambush-type interviews lately to trust anything but a workhorse like my Frezzi.
But it is odd that on two different camera models, by two different companies, with two different battery systems I get faint black lines in the dark areas of the picture that only appear in the viewfinder. Can’t explain it, perhaps its got something to do with the voltage of the light interfering with the electronics in the viewfinder. Don’t have any problems with the other three on-camera lights I have. I also tested it on a BETA SX and did not see any problems.
Very strange.