Sorry about that...if price is no option it shouldn't be a problem to use a high-end spectrophotometer to measure 21 step wedges. The specs of the unit that you give below seem to be completely adequate. My main concern was for people on a budget...where the used densitometers seem to give much better performance than the lower-end new spectrophotometers. Robert On 3/31/03 11:19 AM, "Dimitri Katsaros" <dcka@...> wrote: > Yes, but if you recall, I did specify that you forget about price > differences. So, the spectrophotometer I had in mind was the > Spectrolino. Alternatively, the people at X-Rite suggested the 508, > but the downside with the 508 is that it cannot be used with a > monitor (to my knowledge) nor can I see a way for it to be fitted to > a device similar to the spectroscan. OTOH, the 508 is slightly more > accurate (0-2.0D +/-.005D and 2.0-2.5 +/-.010D). > > Dimitri > > --- In DigitalBlackandWhiteThePrint@yahoogroups.com, Robert Morrison > <rmorrison@p...> wrote: >> The problem with many of the pro-sumer level spectrophotometers is > that they >> don't have strong enough light sources to measure black patches > with low >> reflectance (high dmax). As a result, several of us have found > that these >> devices are not good for readings above 1.6 or so. This is a > problem for >> determining accurate shadows on many matte papers and causes > considerable >> problems if you plan to work with coatings or print on glossy or RC > papers. >> As such, buying a used professional densitometer, like the X-rite > 810, which >> several of us have, makes more sense for measuring step wedges for > BW work. >> >> Robert >> >> >> On 3/30/03 9:28 PM, "Dimitri Katsaros" <dcka@y...> wrote: >> >>> Hi all, >>> >>> I was wondering if, forgetting for a moment about any >>> price differences, a dedicated densitometer is, in >>> general, any more accurate that using a >>> spectrophotometer for measuring a 21-step wedge. I >>> know that there are variances between models and >>> brands, but I am also wondering if there would be any >>> advantage in owning both. >>> >>> Thank you >>> Dimitri Katsaros >>> >>> ===== >>> Quiquid latine dictum sit altum viditur >>> >>> __________________________________________________ >>> Do you Yahoo!? >>> Yahoo! Platinum - Watch CBS' NCAA March Madness, live on your > desktop! >>> http://platinum.yahoo.com >>> >>> >>> Please visit the Group Homepage to check the Files, Bookmarks, > Polls and other >>> resources as they are often being updated. The page is at: >>> >>> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint >>> >>> If you wish to receive no emails or just a daily digest, or you > wish to >>> unsubscribe, please edit your Membership preferences by visiting > this same >>> page. >>> >>> Please follow these basic guidelines: >>> - Include your full name with your message. >>> - Include the address of your website, if you have one. >>> - As threads develop, trim off excess portions of earlier > messages to keep >>> them short. >>> - As the topic of a thread changes remember to change the subject > header. >>> - Good manners are required at all time. No personal attacks or >>> &amp;quot;flames.&amp;quot; >>> - Complete your Yahoo profile. >>> - Before posting a question, search the message archives and the > various >>> resources on the homepage. >>> >>> >>> >>> >>> Your use of Yahoo! Groups is subject to > http://docs.yahoo.com/info/terms/ >>> >>> >>> > > > > Please visit the Group Homepage to check the Files, Bookmarks, Polls and other > resources as they are often being updated. The page is at: > > http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint > > If you wish to receive no emails or just a daily digest, or you wish to > unsubscribe, please edit your Membership preferences by visiting this same > page. > > Please follow these basic guidelines: > - Include your full name with your message. > - Include the address of your website, if you have one. > - As threads develop, trim off excess portions of earlier messages to keep > them short. > - As the topic of a thread changes remember to change the subject header. > - Good manners are required at all time. No personal attacks or > &amp;quot;flames.&amp;quot; > - Complete your Yahoo profile. > - Before posting a question, search the message archives and the various > resources on the homepage. > > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > >
Message
Re: [Digital BW] Densitometer or Spectrophotometer?
2003-04-02 by Robert Morrison
Attachments
- No local attachments were found for this message.