How about using the 365nm ones, and add another filter? Cheers, -Neil. On 2/27/2016 9:47 PM, Jean-Paul Louis wrote: > Bob, David wanted deep UV, not near UV. 365nm is near UV. what he asked f= or was 260ish nm. > > Near UV less are cheap, but 265nm are in the $80 range > > Just an extra $0.02, > Jean-Paul > N1JPL > > >> On Feb 27, 2016, at 8:27 PM, Bob Blick wrote: >> >> I've bought 365nm LEDs on eBay and aliexpress.com. Prices are low and >> they definitely have less visible output than 395nm LEDs from the same >> vendors. >> >> These are the ones I've bought most recently: >> >> http://www.ebay.com/itm/251647264719 >> >> Bob >> >> On Sat, Feb 27, 2016, at 03:05 PM, David VanHorn wrote: >>> Ouch. $86 ea and up. >>> >>> On Sat, Feb 27, 2016 at 11:28 AM, embedded systems >>> wrote: >>> >>>> http://www.digikey.com/product-search/en/optoelectronics/infrared-uv-v= isible-emitters/524328 >>>> >>>> This email has been sent from a virus-free computer protected by Avast= .. >>>> www.avast.com >>>> < >>>> https://www.avast.com/sig-email?utm_medium=3Demail&utm_source=3Dlink&u= tm_campaign=3Dsig-email&utm_content=3Dwebmail >>>> <#DDB4FAA8-2DD7-40BB-A1B8-4E2AA1F9FDF2> >>>> >>>> On Sat, Feb 27, 2016 at 6:07 PM, David VanHorn >>>> wrote: >>>> >>>>> Is there a source where I can buy a few deep UV leds? I am taking >>>>> pictures of glass under UV light, and even with a Hoya UV(0) filter >>>>> (highest blocking available) the UV leds I have are getting through >>>> because >>>>> they are up at 395 where the filter still passes. They show up as an >>>>> intense blue light in the camera. :( >>>>> >>>>> I need to move the source down below 350nm so that the filter is more >>>>> effective. I know they are made down to 260 ish, but I need some tha= t I >>>>> can actually buy in onesies. >> >> --=20 >> http://www.fastmail.com - IMAP accessible web-mail >> >> --=20 >> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .