![]() I also find that I get better results (in terms of sharpening that is) when I turn off all in-camera sharpening then perform a subtle sharpening if the subject warrants it, within PSE. The colour of the light, nominally 6000k, is perfect too - Neither the camera or photoshop make any changes when I select WB correction. ![]() The LED runs quite cool - at most just about warm - to the touch of the heat-sink. It's absolute simplicity to turn the filter-glasses for a perfect intensity. With the larger field-diaphragm port of the BX40 the v-ND is a lovely tidy fit. Yes, the 100% on plus the variable ND filter is my preferred method. Or maybe the simplest of all set the dimmer permanently at 100% and dim the light with ND filters, like your variable polarizer filter. As we know, the maximum continuous operating current of a LED must not be exceeded.Īn alternative option, I think, is the 21KHz PWM dimmer from retroDiode. IMHO, the voltage-current lab PSUs shown in the photos above, can be used if and only if it can be set to a constant voltage and variable, controllable current, which can be preset to stay below a limit. HIKARI VisionPlus H1 LED Bulbs,15000LM,30W TOP XHP50.2 LED Equivalent to 100W Ordinary LED,High Lumens LED Conversion Kit,6000K Cool White, IP68 Waterproof,Halogen Upgrade Replacement,Foglight 4.5 (5,192) 5999 (30. This message should be read after a 12h delay at least LEDs have an efficieny like a fluorescent lamp - not bad but not great either. To use the full power that is available you need good cooling. These are clusters of 4 single LEDs that are grouped closely together, similar to the wire of a filament, and work with higher voltage and less current, so you don't need especially fat cables. Quite a small emitter, similar to the flat filament of a bulb, and this one has a nice light temperature of 4500K. These are nice LEDs for cases where you need real power, like reflected light or high power darkfield : ![]() The second one has lots of power and can be used for bulbs and LEDīoth take up little space and can be used for other purposes like heat plates, little ovens, fans. I’ve long wanted to upgrade, but wasn’t pleased with the available aftermarket options. (F25) that unfortunately came with the halogen reflector headlights. The first one is nicer as a general purpose lab power supply. 17886 Views 17 Replies 7 Participants Last post by hoppyjr, May 30, 2019. If you are looking for an uncomplicated LED power supply these are nice: ![]()
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