OK, this is what bought on eBay:Pau wrote:I don't think so, the collimating optics at my lamp housing is very strong although the ones inside the Nikon illuminator could be different (mine has only one other lens inside the illuminator). The optics need to be able to focus the LED die at the rear focal plane (and fulfilling it) of the objective after Köhler
...and this one I got from Ray http://www.photomacrography.net/forum/v ... hp?t=37394
Is something missing in the 1st one ?
Agree, Chinese stuff is just for training ...Pau wrote:You can put some more money, I have a "3 W" no brand chinese UV LED and, despite working it's not well powered and produces a large amount of white light.
The Nichia I linked is excellent although expensive and I'm also very satisfied with the LG 3535 385nm
Browsing for FL information I saw some FL units with fly eye type lensJohnyM wrote:Nothing is powerful enough for fluorescence
Those 10W diodes are just many weak diodes on single board. You need to find strongest SINGLE diode, otherwise you'll get very uneven illumination or you'll need to use diffusion which ultimately bring their power down to that 3W equivalent...
https://www.nikoninstruments.com/Produc ... opes/SMZ18