Chronos > Chronos User Discussion
Let's talk lighting
John Delonghi:
I've just been doing some more tests with the Stratus lights and I've noticed some flicker at high frame rates I didn't see before.
I'm going to try a different power supply on one to see if that makes any difference but above 7000fps it's quite noticeable at the moment. Strange I didn't notice it before.
I've got an Aputure 300D LED light I'm comparing against the Stratus and I was surprised to find that even using a fresnel on the 300D, the Stratus holds it own against a light costing 7 times the price, but the flicker could be a problem if i can't solve it.
Incidentally, the Aputure also flickers if I set it below 100%, but I doubt I'll ever want to run it on anything other than full power with the Chronos.
Has anyone else using the Stratus seen flicker?
John Delonghi:
Stratus have a new driver board and I've just taken delivery of some and swapped one of the existing boards with a new one.
I've gone up to 38.57kfps with 2.830us exposure and can't see any flicker now. I'm just about to upgrade the other 3 Stratus lights I have with the new driver boards.
The new boards are clearly labelled "100W LED Driver V2" on the back so you can tell if you have the ver. 1 or ver. 2 boards.
I'd say the 4 x Stratus and 1 x Aputure 300D is going to be a good lighting kit.
There's a lot of light there and it all packs up into a couple of cases and will not stress a domestic circuit. It should all run off a 2KW generator if necessary.
Nikon1:
Anyone ever Tryed the 500W LED-Chips from Ebay?
dominoguru2:
I bought a godox 100W and it doesnt't flicker however the lighting is so dark still. I am not sure how many Godox I need to buy until the lighting is good like my slr which lighting is perfect every time. With good lighting comes good quality slo motion videos. With not so good lighting, the quality is not good. Chronus is a very expensive hobby.
Nikon1:
--- Quote from: dominoguru2 on July 15, 2018, 06:52:39 PM ---I bought a godox 100W and it doesnt't flicker however the lighting is so dark still. I am not sure how many Godox I need to buy until the lighting is good like my slr which lighting is perfect every time. With good lighting comes good quality slo motion videos. With not so good lighting, the quality is not good. Chronus is a very expensive hobby.
--- End quote ---
Depends mostly on how big of a Scene you want to Light with that one 100W LED-Light. Also depends a Lot on your exposure-Time /Framerate.
If you want to Light some small part of your Desk and take some Macro-Shots in Slow-Motion, it should be Plenty of Light for most of the time.
If you want to Light a football-Field (realy stupid big example) with that one 100W LED you will run into problems, even with Modern DSLR´s for normal Video.
The closer you (can) place your Light to the Object, you want to Light, the brighter it will be.
And if you have a smaller Area to Light up, it will also be Brighter.
If you want to Light something of the size of an normal Room you will need quite some Light for that, even at "just" 1500fps.
.
I did hear a Fimmaker once say, that you should invest as much money into Lighting than you spend on the Camera you are Using, if you want a realy good result.
And i think, that especialy for Highspeed-Video it is mostly true. An exception might be, if you are able to Use Sunlight (and maybe reflectors) all the time when you are Filming.
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