Digital BW, The Print

You may not be aware that the Ott-Lite products are not good for 
critical appraisal of prints as they have a spiky spectrum unlike true 
daylight or tungsten bulbs.  Off course tungsten is far less blue than 
daylight and therefore not really suitable as it gives a distorted 
appearance to what you are evaluating. The best option is the bulbs and 
enclosures available from So-lux. 

Solux create their own color universe; no other artificial light source produces results similar to them. On the other hand, professional proofing booths and light boxes produce results very similar to Ott-Lites, both being multi-phosphor fluorescents. So if your goal is to be seeing what other proofing lights show, an Ott-Lite isn't a bad low cost choice. Multi-phosphor fluorescents also use much less energy, last far longer, and retain their color accuracy much longer than Solux bulbs, as well as reducing the possibilities of burns, and not overheating your studio. Solux really need to be switched on quickly for a print check, then turned off again, due to heat as well as fairly rapid color change over time. Multi-phosphor fluorescents can be run 24/7 with little energy use, little heat buildup, and little change over time. So these other factors should be considered when choosing a light source.


C. David Tobie
Global Product Technology Manager
Digital Imaging & Home Theater
Datacolor
CDTobie@...
www.datacolor.com/Spyder3



-----Original Message-----
From: Richard Kenward <richard@...>
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Sent: Sat, Feb 27, 2010 9:45 am
Subject: [Digital BW] Ott-Lite replacement


In his posting of Fri, 26 Feb 2010,  writes
>"keesatindy" restorephoto@...    keesatindy
>
>Thu Feb 25, 2010 4:58 pm (PST)
>
>My 18w Ott-Lite vision saver bulb just died and I just discovered they no 
longer
>make this bulb. The switch on this lamb quite working long ago. Fortunately, it
>was in the "on" position and I've used a switched surge protector for the 
on/off
>function ever since. These bulbs were always a pain to replace anyway. Even
>dangerous, I think.

snip

Guys

You may not be aware that the Ott-Lite products are not good for 
critical appraisal of prints as they have a spiky spectrum unlike true 
daylight or tungsten bulbs.  Off course tungsten is far less blue than 
daylight and therefore not really suitable as it gives a distorted 
appearance to what you are evaluating. The best option is the bulbs and 
enclosures available from So-lux. 
http://solux.net/cgi-bin/tlistore/infopages/index.html

Cheers

Richard
-- 
Richard Kenward      <www.artisan-digital-services.co.uk>
phone +44(0)1873 890456
fax +44(0)1873 890565




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