The high CRI thing was from 2010.
I'm not sure whether they'd be any better for cave use than the standard LEDs of appropriate colour, and there's a fair efficiency hit compared to simply using more neutral/warm regular LEDs.
In both cases I have not had problems with getting the colours to look right.
Try http://www.qpcard.se/BizPart.aspx?tabId=28&tci=51 The 201 card is 14cm by 4cm. Not tried it underground.
This I simply don't understand. Why does electronic flash render 'known' colours OK, but cave walls differently?
Could it be your perception of the colour of the cave walls?
I find that compared with film, digital images of caves tend to be biased towards a 'warmer' rendition when using electronic flash, so that, for example, grey rock turns out well – grey on film, but reddish-brown on digital
LED or Flash? Can you tell?
So with film, the film was colour balanced for daylight (unless you used specialist film) (.....)
So with flash which is designed to mimic daylight the colours were balanced as expected.
Quote from: footleg on December 09, 2011, 10:28:54 pmLED or Flash? Can you tell?<snip>FlashLEDFlash??
LED or Flash? Can you tell?<snip>
They are also a warmer white.
Really nice pics those, what sort of exposure time did you use, and it looks like 2 sets of P7 lights? Was each one just 1 x P7 or did the lights have more than one?
Bad Behavior has blocked 1133 access attempts in the last 7 days.