Márcio Heleno Soares Posted October 25, 2014 Share Posted October 25, 2014 I'd like to know what's the diference between a fresnel 1000w and this kind of light with a tungstein lamp of 1000w: Link to comment Share on other sites More sharing options...
Mark Dunn Posted October 25, 2014 Share Posted October 25, 2014 A fresnel can be focussed. The open-face floodlight can't. The barn doors will have a very limited effect. It's basically a security light. Link to comment Share on other sites More sharing options...
Márcio Heleno Soares Posted October 25, 2014 Author Share Posted October 25, 2014 Thanks for ur answer Mark. I did a search for comparison for the diference using lenses and lights without lenses. I found this: I can't believe this shadows it's just result of the use of lenses. Is it? I am preparing to buy a fresnel kit to pratice. Link to comment Share on other sites More sharing options...
Premium Member David Mullen ASC Posted October 25, 2014 Premium Member Share Posted October 25, 2014 The barn doors on an open faced unit like that are mainly just to reduce side spill and give you something to clip a gel to. Useful for bouncing or going through a diffusion frame, though even with those barn doors you may get side spill that needs to be flagged or blackwrapped. A fresnel lens makes the beam more focused and even from edge to edge so that a barn door actually can be used to create a soft cut on the light. The light from the fresnel creates a cleaner shadow. It also allows a spot to flood design for the unit. So if you are doing much direct hard lighting, then fresnels are useful. See: http://en.wikipedia.org/wiki/Fresnel_lens Link to comment Share on other sites More sharing options...
Premium Member Phil Rhodes Posted October 25, 2014 Premium Member Share Posted October 25, 2014 That said I've had good luck with security lights! There's nothing wrong with the light, it just goes everywhere. Large flags required. And they're practically disposable, they're so cheap. P Link to comment Share on other sites More sharing options...
Márcio Heleno Soares Posted October 25, 2014 Author Share Posted October 25, 2014 I understand! Thanks! Link to comment Share on other sites More sharing options...
Vadim Joy Posted November 5, 2014 Share Posted November 5, 2014 (edited) If you need something to start I'd recommend redheads. Also come with barn doors but as been said they are useful only to put gels and diffusion on. They are relatively cheap and powerful tungsten lights. Usually come 800w as a kit bulb but you can change it for something like 250w, which can be used for backlight for example. I'll be using those to light my first feature. I did some tests and from what I can see they are useful lights. Although get hot, very hot. The main difference between those and the ones you showed (security lamp) on picture is that redheads have even reflectors inside, which gives you a bit more sharper shadow. All those little bubbles you see around the bulb will give you nothing more but trouble. Edited November 5, 2014 by Vadim Joy Link to comment Share on other sites More sharing options...
Premium Member Bill DiPietra Posted November 5, 2014 Premium Member Share Posted November 5, 2014 If you can afford fresnels, get fresnels. Link to comment Share on other sites More sharing options...
Gregg MacPherson Posted November 5, 2014 Share Posted November 5, 2014 Hey Bill, this reminds me of another conversation. We could have a poll, such as...."by default, what are the first two lights that someone starting out should aquire?". Does this forum do polls? Link to comment Share on other sites More sharing options...
Premium Member Bill DiPietra Posted November 6, 2014 Premium Member Share Posted November 6, 2014 Hey Bill, this reminds me of another conversation. We could have a poll, such as...."by default, what are the first two lights that someone starting out should aquire?". Does this forum do polls? LOL...not really sure. I think an earlier version of it may have, but I don't know if this one does. Tim?... Link to comment Share on other sites More sharing options...
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