Hello,
I have been talking about showing the difference between a Smooth Reflector and a Stippled Reflector, so everyone can see the difference for themselves. Finally I have the shots for you to see.
The test light is the Blue 1D that I just finished. It has an XM-L T6 led in it, I cannot tell you the tint, but it's up in the 6000k+ range. It is showing about 3000ma on high. All shots are on high. It is powered by 4xAA Eneloops. The reflector is a 51.2x29.5mm Aluminum Mill Reflector For XM-L T6, from CNQG. It is a SMO reflector and I will Stipple it for the second half of the tests.
The photos are all shot with my Canon S3IS set on Manual. The settings are:
ISO 200
F:2.7
Shutter 1 second
WB/Daylight
The last set of photos, taken inside has a different set of parameters and it will be identified under the photos.
ALL Photos are set up with MouseOut SMO and MouseOver Stippled.
Here we go;
MouseOut SMO and MouseOver Stippled.
MouseOut SMO and MouseOver Stippled.
MouseOut SMO and MouseOver Stippled.
MouseOut SMO and MouseOver Stippled.
MouseOut SMO and MouseOver Stippled.
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MouseOut SMO and MouseOver Stippled.
This last set, is to show a little more definition of the beam. Settings are the same, except for Shutter speed of 1/60 Second. A faster shutter, to show a little more definition.
Basically, using the Stippling gives more spill, with a larger hot spot. You loose throw, but gain side spill. You also loose lumens, since the light is now expanded across a larger area, it seems to cut down on the light. Some of this is perceived, some of it is actual loss, because the reflector is no longer smooth, so it does not reflect out as well as it did. I cannot measure lumen output, so all I can give you is a few photos. I would guesstimate somewhere around 25% to 30% loss using a Stippled or OP reflector.
My preference is spill over throw ans uniformity of the beam over artifacts. That's why I stipple my reflectors.