Flashlight for photography

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dholland
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goshdogit wrote:
It’s great to see so much activity in this thread! Kudos to everyone involved, including dholland for being so interactive with folks offering advice. Thumbs Up

Thanks, Goshdogit – there are some great folk here!

goshdogit wrote:
One exception is ‘Crescendo’ by ToyKeeper, which works with a simple on/off tailswitch instead of an e-switch. Here’s a video demonstrating it on another flashlight.

That’s perfect for my application! One tap to ramp brighter, two for darker and a blink at the ends so you know you’re there. I’ll look into how you define the ramp and how you reprogram the driver, and come back if I need help with it. I see there’s an enormous thread on modding the Z1, so I expect it’s there. Looks like I’ve found my ideal light. v1.0 of my ideal light at least.

Thanks! Dean

MascaratumB
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dholland wrote:
goshdogit wrote:
One exception is ‘Crescendo’ by ToyKeeper, which works with a simple on/off tailswitch instead of an e-switch. Here’s a video demonstrating it on another flashlight.

That’s perfect for my application! One tap to ramp brighter, two for darker and a blink at the ends so you know you’re there. I’ll look into how you define the ramp and how you reprogram the driver, and come back if I need help with it. I see there’s an enormous thread on modding the Z1, so I expect it’s there. Looks like I’ve found my ideal light. v1.0 of my ideal light at least.

Thanks! Dean


That’s my video Big Smile I’m famous on YT now Silly Facepalm Evil

I am still using Crescendo on that light (a zoomie), so in case you need some help, let me know !!

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dholland
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JaredM wrote:
I think the simplest option could be the Jaxman Z1, DC-Fixed lens, and Samsung LH351D in 5000K or 5700K. I’m sure with some patience and an hour or so of practice, you surely could handle an emitter swap. It’s just two wires and many folks here would be glad to help you along the way.

Yup. I’m sold on the Z1 as a host.

JaredM wrote:
… these actually get slightly more green the harder you run them, and most of their shift runs parallel to the BBL, increasing in CCT with drive current.

Thanks for making me aware of this. I’m used to flash where there’s only a minor shift of colour temp through the power range – I hadn’t thought of green/magenta changes with power. Won’t be a problem with this light as it’ll be used solo and won’t need to match others in a studio.

JaredM wrote:
I actually have a Z1 in like new condition that’s on my for sale or trade list. I could swap in an emitter for you if I had time to acquire one. I’d love to see how it works for you and iterate on some designs. Right now it’s got the stock 70CRI XPLHI.

I’d originally hoped to start using v1.0 of the light in about 2 weeks, but AliExpress quotes a vague lottery of 15-60 days for delivery. It’s US$68 including postage for the 5000K 90 CRI CREE XHP50 version (close enough to get me started while I work on v2.0). Your reduce, re-use, recycle idea might work out quicker! Any idea on timeframe? The 70 CRI wouldn’t work, but the Samsung or CREE 90+ CRI in 5000K or 5700K would work well.
Dean
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PM incoming.

I hope to see you enjoy your time here at BLF – a belated Welcome as well. Lots of fun and learning to be had.

xseven
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Hi!
Any updates on the project? Smile

dholland
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Yes! JaredM did a fantastic job of customising a (safe!) Cometa for me, and it’s fabulous. It’s got a Samsung 90CRI LH351D emitter, a better switch and DC-Fix diffusion just above the emitter (away from the lens). The beam shape is great, with just slight variation in colour across the beam. I also got an Emisar D18 with SST-20 4000K 95CRI emitters as a complement – the Emisar as a sledgehammer for power, and the Cometa as a stiletto for highlighting the subject.
Before the lockdowns I did two professional commercial shoots with the Emisar and a cheap zoomie (I didn’t have the awesome Cometa then), shot on iPhone 11 – this is all to show that you don’t need what’s traditionally thought of as “pro” gear to get pro results. The client loved the outcome. I’m writing an article about the experience, which I’ll share with everyone here. I’m currently moving my whole business online, and that’s taking over everything… hoping to get back to writing in a couple of weeks.
Thanks for the follow-up!

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