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Found 4 results

  1. Hi, We are two technicians working in the film industry in France (a grip guy and a gaffer) and we just discovered this very interesting forum. We particularly noticed that gaffers and cinematographers were asking questions about light output and what aperture is obtained at a certain distance. It happens that with the help of two IT engineers we developed an iOS app responding to this question about 2 years ago. First and for all, we’re not going to post messages everywhere on this forum to sell our app nor are we going to pollute your threads to gain in visibility. We just think some of you might be interested in what we created and since we’re a really small team working on off-time we can’t do any real advertising, so you probably wouldn’t know our app existed. Our app is called Predilux (for pre-diction and lux for light) and predicts the exposure as measured by a light meter, by choosing a light source and a distance. Or inversely predicts the distance to the light source by specifying the exposure. Predilux takes into account: Camera settings (FPS, ISO, Shutter angle) Source settings (Focalisation, Lenses, Grids, Dimmer, CCT, etc) Gels mounted on or close to the source (All ROSCO e-colour+ range) All results have been experimentally verified by us with a light meter in rental houses. For each source setting we made several measurements at different distances and this took a lot of time. So Predilux does not rely on constructor’s data, but on real data reflecting the state of the equipment as found in rental houses. Our data sometimes differs from the constructor’s data. Here is a quasi exhaustive list of the sources measured and included in the Predilux (12/2019) : Tungsten ARRI 150, 300 Plus, 1K Plus, 5K Fresnel, T10, T12, Rubylight (MFL lamps) Briese 77, 100, 140, 180 with lampes ranging from 650 W to 2K Mole Richardson Softlite 1K, MaxiBrut 16 (MFL lamps) Openfaces such as Redhead, Blonde, Desisti Renoir 5kW and LTM Cyclight 2K ETC Source 4, Dedolight, Zaplight, CMC 20K, etc. HMI ARRI AS 575, 1200, 4K, 6K, 12K, Arri M18, M40, M90, ArriMAX 12K & 18K K5600 JokerBug 200, 400, 800, Alpha 1600, 4K, 9K, 18K AFM 575, 1200, LTM Cinepar 2.5K Fluorescent KinoFlo 2ft, 4ft & 6ft LED ARRI S30, S60, S120, S360 KinoFlo Celeb 200, 250, 400, 450, 850 DMG SL1, SL1 mini, SL1 Switch, MaxiSwitch Mole Richardson Tweenie, Senior, Tener Aladdin Biflex 1x1, 1x2, Flexlite 1x4, 350 Dedolight bi90, Cineroid LMD400, Velvet V1 Balloon Airstar Gaffair 1200, Elipse 4000, PAD 9ft x 9ft, Tube 16K If any of the administrators of this forum wish to try out our app, we would be happy to give them one or several free life-time activation codes. For all the other users, our app is available on the Apple Store (). An Android release is planned. If you have questions or requests, don’t hesitate to contact us at this address predilux@wid.la Thanks for reading this post and we hope you thought it was interesting, Georges Harnack for the Predilux Team
  2. I will be doing a shoot in jungle. I want to know how can I control the day outdoor light. The weather condition around here is sometimes rainy and hard sunlight. I want to do various scene in different lighting, so please help on how I can create the different lighting scene 1. diffused lighting on character and the surrounding trees. 2. hard side light to fall in character face. 3. using top sun light for a day murder scene. ( i want to use a lot of highlight in the scene, how it would be as using top sun light? and what precaution are required ) Kindly help me with what hmi, or solars i can use and how to use it I want to have a bit of contrast between the character and background ( i want the character to be 1 stop up and the surrounding to be 1 stop down )
  3. Hi, new to the forum, and so far it's been a really great learning experience. Anyway, I was wondering how any of you might go about getting a similar quality of light from this shot in Grand Budapest Hotel on a budget? The project I'm working on mostly takes place in the kitchen of which I've included pictures below: I'm pretty young and I usually just reserve myself to writing and directing, but I thought it might be a good experience to try to DP one of my projects. However I could use a little guidance as this is all rather new to me still, but I did have a few initial ideas. I plan on putting up white curtains as the view outside is rather un-cinematic, and because I feel like it will add to the main character's feelings of being trapped. I don't have much of a budget, the brightest lights I could rent are probably a couple of 1K tungsten lights. However, I plan on using my 5D mark III with ML Raw, so I can go up to 1250-1600 and get a pretty clean image, and I tend to like to shoot between an f.2 - f.4. My nearby rental place does have a set of 2 x 1K Arri's and an Arri 650w open face that are decently priced for the week. I could possibly try and rent a few other smaller tungsten lights as well. I was thinking about possibly going and blocking out the sun with some black cloth draped over some C-stands on the deck and then setting up one of the 1K's in front of it to light up the white curtains acting as the sunlight. My thinking to do this is so I can keep color temp consistent, and so we don't have to worry about clouds coming in and out all day. It would also help keep consistency as Minnesota weather can be rather unpredictable, and it will be a 2-3 day shoot. From there I was thinking of using the second 1K as my key for the subjects as most of the dialogue happens in singles, probably bouncing it off of maybe some muslin or setting up a cheap book light scenario. Then finally using the 650w either for fill or for bouncing off the ceiling to raise ambient light levels. Anyway, I know that was a lot of information, but I was just wondering what any of you might do to get a similar look on the cheap all while trying to keep it consistent over a couple of shoot days. That was my initial idea, but I'm still not sure if that would even work as I've only been studying this stuff for the last couple months. Looking forward to hearing any and all ideas!
  4. Hello I am about to shoot my year end final dialogue exercise in a month's time from now, the film has to be shot in studio space on 35mm film and sound synced. The film explores the internal conflicts of a family living in an lower middle class weared out house. It's raining or overcast in most part of the film and hence it is softly lit throughout but at the same time, I am trying to go for a higher contrast(not exactly very high) with lighting. Now, I am looking to create contrast within the space with respect to exterior and interior by the means of lighting (avoiding a lot of fill), a soft key coming from window bounced off a white board might work. As far as film stock is concerned I am thinking of testing two stocks, Kodak 5219 Vision 3 500T and Fuji Eterna 8583 400T, both to be pulled by a stop in combination with a low strength ultracontrast filter. This makes the colour desaturated and also makes the overall contrast low and blacks softer, but at the same time the contrast with respect to lighting would be higher (conventionally Key - Fill ratio will be higher). Sugesstions would be appreciated. Shashank Walia Cinematography,2011 FTII.
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