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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 firstname.lastname@example.org Thanks for reading this post and we hope you thought it was interesting, Georges Harnack for the Predilux Team
Looking for a buyer who shoots stills as well as motion and would rather own then rent a dual purpose Briese. I'm selling my Briese Focus.2 100. The Focus.2 100 is brand new and comes with motion and still setup. For motion, an older Briese 2.5K daylight HMI with just over 1,000 hours on head/ballast (works great). For stills, brand new, factory direct Briese strobe head fitted for Broncolor packs with a like new Broncolor Scoro S 3200 RFS Power Pack. All additional tubes/accessories/adapters needed for the Focus.2 100 to go between still and motion as well as 1/4 and 3/4 diffusion. The Focus 100 travel bag is included as well as an older, non-focus, square 100 reflector which is the only item that needs some tlc. Asking $28,000 ($40,000 if purchased separately - the Scoro alone is $14,000). I’m really interested in selling the whole kit (not breaking it up). So either the dual purpose fits your business model or you know someone who can appreciate the amazing features of the Broncolor Scoro S. If interested, message me and I’ll send photos (or video) of all the items. Again, the focus reflector is brand new, the Scoro is like new (6 jobs shot on it), and the only item with age, the Briese HMI ballast and head, has just over 1000 hours. Thank you. Mark
Hi everyone, I'm going to setup a Briese Light 220 on an exterior shoot, and I need to know how can I avoid to him fall down with the wind! (It's not a windy place). I've 100 kgs of Sand bags but I would like to strap them on some trees or if it's not possible on the ground! What should I use if I the trees are to far and the ground situation is the only possibility? Thanks by your time, Bruno
Hello Cinematography community. I am a still photographer that uses a scan back camera to capture my still photos. Because each photo is scanned over time (verses the instant capture of a DSLR) I use continuous light sources (verses flash). One of those sources is a Briese 2500watt HMI which I bought new, have had for a while, and used for only 1,080 hours. I'm looking to sell it and for those who know of this German brand, it's not something you drop on craigslist. Any suggestions on where best to post this item for sale? Thank you. Mark