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Daylight bulbs for viewing prints

ruthiebabe 10 41 United Kingdom
23 Feb 2009 5:30PM
Hi, Iíd like to buy a daylight bulb to put in a desk lamp or similar in my workroom, itís a rather dark room and I have trouble viewing prints I print off, obviously it makes things worse that the lamps I have are tungsten or halogen.

Trouble is Iím unsure what to buy, a quick look on the net and you come up with daylight bulbs with various fittings but they seem aimed at sufferers of seasonal affective disorder. Common sense tells me that they should be equally suitable for viewing prints but am I wrong? Maybe there is some special knowledge that I need, or something specifically photographic. I did see a little desk lamp in the colour management section of Morris photo but itís very expensive and probably too specialist/unnescessary

Any advice gratefully received, thanks, Ruth

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pennyspike 14 2.1k 29 United Kingdom
23 Feb 2009 5:40PM
Craft shops used to sell them, but I'm not sure whether they're still available.
rictac2 13 150 England
23 Feb 2009 5:43PM
Hi Ruth

If your desk lamp is a screw fitting rather than bayonet, we (PhotoSkill) can supply a daylight output CFL (Compact fluorescent Lamp; PM me if you like.

geoffash26 13 2.5k United Kingdom
23 Feb 2009 6:20PM
As Penny says go to a craft shop and they call them craft lights
available in 60w and 100w BC & ES if you really get stuck give me a PM I sell them at work but they're not the best object for posting Smile
MikeA 13 1.3k England
23 Feb 2009 7:31PM
I find the 30W good see link. Also use them in most of the house, much better than the yellowish light from most energy savers - 6500K colour temperature.
link here

or Colour Confidence viewer as another option.

link here
dcash29 12 2.2k England
23 Feb 2009 10:43PM
Why not visit your local electrical wholesaler.

Purchase a fitting and an Osram L 18/865 Lumilux cool daylight

These are the lamps used at my photographic society
thewilliam 9 6.1k
23 Feb 2009 11:17PM
I use a two-tube desklight that uses D65 fluorescent lamps that are marked F15W/55.

Be very careful when choosing "daylight" lamps because a lot of the aren't. Try to see this month's issue of Imagemaker, the SWPP mag.
dcash29 12 2.2k England
23 Feb 2009 11:27PM
The tubes i mentioned are 6500 Kelvin Fluorescent tubes, designed to provided standardised lighting for colour critical environments such as pre-press and photography.

Which simply replaces the fluorescent tube in a standard fitting
brian1208 Plus
14 11.3k 12 United Kingdom
24 Feb 2009 8:39AM
They had some in my local Sainsburys Homebase last week - (I've stocked up against the day the EU snaffles the last of them in exchange for their "Mercury Bombs" Smile
rictac2 13 150 England
24 Feb 2009 10:50AM
Osram 865 tubes are 6500K, this is true, but there is a lot more to it than that.
They are not a continuous spectrum, they are cold 'northlight' and colour reproduction is not as good as it could be.

Colour temperature 6500 K
Colour rendering group 1B
Colour rendering index Ra 80 ... 89
Light colour 865

Osram Lumilux delux 954 tubes available from about 18W - 55W are just about the best available regarding consistent and accurate viewing (or studio lighting), with a continuous spectrum and better (less blue) temperature but you would need a 2G11 fitting:

Base / Cap 2G11 4 pin
Colour rendering group 1A
CRI 95
Colour Temperature 5400 kelvin

I could dig out the spectral output graph of the 954 for anyone interested.

I know this is probably beyond what the OP would be looking for owing to the 2G11 fitting, but thought it would be of general interest too.
Tungsten 'craft lamps' are not accurate or consistent colour, run hot and use 4 - 5x more electrickery per lumen output.


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