Search Results - PentaxForums.com

The Latest

Forum

Cameras

Showing results 1 to 2 of 2 Search:

Forum: Flashes, Lighting, and Studio 03-17-2016, 01:03 AM

DIY Ring-light questions
Posted By maltfalc

Replies: 17
Views: 2,540

what makes you think that?

Forum: Flashes, Lighting, and Studio 02-13-2016, 09:59 AM

DIY Ring-light questions
Posted By maltfalc

Replies: 17
Views: 2,540

you're thinking of voltage. current can be adjusted from 0 to the led's rated amperage with a fairly linear change in brightness between the two. doubling the current gives a bit less than double the output because the led gets hotter and less efficient. there's also a slight shift in colour, which is why pwm is sometimes used.

Search took 0.00 seconds | Showing results 1 to 2 of 2

Forum Jump