Recent content by tehfrr

I picked up the 380nm laser for photography as well. I have a full spectrum converted Nikon D850, and I use it with a Baader U Venus filter for UV photos. UV photos are harder than visible or infrared photos. The problem is unless you buy specialty lenses approaching $10,000 what is in focus...

yeah I have a Sanwu Pocket 405nm at 500 mW and its not enough. If I went the wall plug-in route Id be carrying around a battery bank in my backpack.. The graph shows what my UV filter will transmit. Sounds like its DIY it is then. You have a really cool build. Im surprised its dim violet as id...

Ive been wanting one of these for years now to help focus a UV camera in low light on things far away. Are lasers like this (200mw @ 375nm) still only in the realm of DIY?

well, Id go lower, but as far as going higher, it would defeat the entire point to use visible (or near visible) light. I tried using my 500mw 405nm laser, no good

Example, all 3 shots from the same place. Mt Adams as seen from Mt Rainier (WA) Visible: Infrared: Ultraviolet:

yeah UV from an electrical arc is effectively emitted isotropically (like an expanding sphere) so it would take a massive amount of power, Id probably get arc flash burns. Combine that with the fact that UV scatters much easier than visible or IR.. The best I could find was a Wildfire system -...

Here's where I tested the 500mw 405nm laser. I put the beam square on the daisy closest to it: The full spectrum camera seen in the above picture was maybe 4-5 feet from the flower. Here's the pic it took: Then I turn on my filtered 365nm flashlight and get this:

Thank you for all the responses, appreciated. I already have a 500mw 405nm laser, and it is not suitable, not even close. I definitely want 375nm - 240nm. Nothing lower as 240nm starts generating ozone gas. I want to keep this project relatively sane; Im comfortable with lasers and ultraviolet...

As of 2020, is there anything useful I'm missing here with respect to small UV lasers? So far the only thing Ive seen on a small UV laser is that they are uncommon and the only diode is super expensive ($4,758 USD for a 375nm 70mW at Thorlabs). I also saw a YouTube video of a guy who scavenged...

Hi. Does anyone know if SKY-Lasers is still open for business? I'm having a hard time finding decent quality 808nm and 980nm lasers. (Experienced with > 5mw lasers, own a couple goggles to cover a range of wavelengths) Tried to purchase a 300mw/250mw set from them, no confirmation email or...