Mine exploration, photographs and mining history for mine explorers, industrial archaeologists, researchers and historians Mine explorer and mining history videos on YouTube Connect with other mine explorers on Facebook
Tip: do not include 'mine' or 'quarry', search by name e.g. 'cwmorthin', use 'Sounds like search' if unsure of spelling

Advanced Search
'Sounds like search' (useful if you are not quite sure how to spell the mine name)
Quick a b c d e f g h i j k l m n o p q r s t u v w x y z
Tip: narrow down your search by typing more than one word and selecting 'Search for all words' or 'Exact search'

Search for any word
Search for all words
Exact search
Tip: narrow down your search by typing more than one word and selecting 'Search for all words' or 'Exact search'

Search for any word
Search for all words
Exact search

Mine Exploration Forum

Author homebiuld LED photo lights
ferret

Avatar of ferret

Joined: 28/04/2007
Location: cornwall

View Profile
View Posts
View Personal Album
View Personal Files
View all Photos
Send Private Message
homebiuld LED photo lights
Posted: 18/10/2009 11:20:27
Reply |  Quote
i've been looking into moving toward these from flash and HID based lighting, many people are it seems and getting good results.
current plans are for a unit bassed on 3x Cree MC-E Emitter (max output 650 Lm each) [link]
these are more efficient than P7's if run well and seem to give a good light - running system ether made driver module or ATMEL based homemade SMD board.
probably powered by Li-ion 18650 cell based power-pack like the sten.
being of an engineering background cassings will be milled out of Al with front window bolted to it and O-ring sealed.

some smiler units have been build by Rod on ukcaving [link]- i've not seem one in action UG yet but have quite high hopes for this as a lightweight lighting system for photographyInnocent.

what are peoples thoughts ideas??

answers on a post card Shocked

ferret.
IP: 81.105.69.189 Edited: 18/10/2009 11:21:02 by ferret
rikj

Avatar of rikj

Joined: 27/12/2008

View Profile
View Posts
View Personal Album
View Personal Files
View all Photos
Send Private Message
homebiuld LED photo lights
Posted: 18/10/2009 17:08:34
Reply |  Quote
Surely worth doing I'd say. If it's for still photography then some of the usual considerations can be done away with.

With that sort of output the duration of shots will be around 4-8 seconds, so does that mean that heat sinking can be pretty much done away with?

Likewise runtime doesn't much come into it as even 200 shots of 4 seconds each isn't a lot.

Finally, I guess a good sturdy case would be nice, but it could just be carried in a decent waterproof box. Will be keen to see what you come up with. I'd be keen to try it myself, but unfortunately even just thinking about electricity makes my brain dissolve.

--

sanitas per evolo
IP: 86.128.243.124
Dean Allison

Joined: 13/01/2008
Location: Northumberland

View Profile
View Posts
View Personal Album
View Personal Files
View all Photos
Send Private Message
homebiuld LED photo lights
Posted: 18/10/2009 20:00:39
Reply |  Quote
Good luck with that. I have seen those emitters in action and they are pretty good. I am actually going back to using flash myself though. Love to see how your project turns out Smile IP: 90.203.50.159
Safety LED Miners Caplamps Moore Books: Specialist Books I.A. Recordings: Mining and Industrial History DVDs Explore a Disused Welsh Slate Mine
Disclaimer: Mine exploring can be quite dangerous, but then again it can be alright, it all depends on the weather. Please read the proper disclaimer.
© 2005 to 2013 AditNow.co.uk
Top of Page