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2005-03-16 by john dean
Does anyone have any idea from practical experience if it makes any difference at all if I send a 16 bit greyscale file over to the 9600 through QTR rather than the 8 bit greyscale file? I usually scan and set up everthing in 16 bit then print out 8 bit. It is slow enough as it is and I don't want it any slower for these larger size prints I have to do tomorrow unless it is a sure thing super-ultra-pro-giclee improvement. John
2005-03-16 by Walker Blackwell
Nope. No difference really. I send 8bit to my printer. Make sure that you flatten when you convert from 16bit to 8bit though. Otherwise it's pointless. If you have blocked shadows to begin-with with noticeable banding, keep it in 16bit. 8bit conversion will just worsen that problem. (I've had to do 16bit with only 3 photos in the last two years. It doesn't really come up much.) take care, Walker On Mar 16, 2005, at 05:38 PM, john dean wrote: > > Does anyone have any idea from practical experience if it makes any > difference at all if I send a 16 bit greyscale file over to the 9600 > through QTR > rather than the 8 bit greyscale file?� I usually scan and set up > everthing in 16 > bit then print out 8 bit. It is slow enough as it is and I don't want > it any slower > for these larger size prints I have to do tomorrow unless it is a > sure thing > super-ultra-pro-giclee improvement. > > John > > > > > > Please visit the Group Homepage to check the Files, and other > resources as they are often being updated. > > 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: > - As threads develop, trim off excess portions of earlier messages to > keep them short. > - Good manners are required at all time. No personal attacks or > flames. Hostile, aggressive or argumentative users may be removed from > the membership without notice. > - Keep your posts and threads related to the group topic of digital > B&W printing. Users who persistently make off-topic posts may be > removed from the membership. > - By posting on this forum you agree to abide by the group rules and > guidelines, and to abide by the actions and decisions of the group > Owner and Moderators. See �Group Topic, Rules and Guidelines� in the > Files section: > http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/ > > BY PARTICIPATING IN AND/OR POSTING MESSAGES TO THE DIGITAL BW, THE > PRINT YAHOO! GROUP YOU EXPRESSLY UNDERSTAND AND AGREE THAT THE �OWNER� > AND �MODERATORS� OF DIGITAL BW, THE PRINT YAHOO GROUP SHALL NOT BE > LIABLE TO YOU FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, > CONSEQUENTIAL OR EXEMPLARY DAMAGES, INCLUDING BUT NOT LIMITED TO, > DAMAGES FOR LOSS OF PROFITS, GOODWILL, USE, DATA OR OTHER INTANGIBLE > LOSSES (EVEN IF THE� �OWNER� AND �MODERATORS� OF DIGITAL BW, THE PRINT > YAHOO GROUP HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES), > RESULTING FROM: (i) THE USE OR THE INABILITY TO USE THE DIGITAL BW, > THE PRINT YAHOO GROUP; (ii) UNAUTHORIZED ACCESS TO OR ALTERATION OF > YOUR TRANSMISSIONS OR DATA; (iii) STATEMENTS OR CONDUCT OF ANY THIRD > PARTY ON THE DIGITAL BW, THE PRINT YAHOO GROUP; OR (iv) ANY OTHER > MATTER RELATING TO THE DIGITAL BW, THE PRINT YAHOO GROUP. > > > > > > Yahoo! Groups Sponsor > > ADVERTISEMENT > <22305_0205_016_b_300250_a.gif> > <l.gif> > > Yahoo! Groups Links > > � To visit your group on the web, go to: > http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/ > � > � To unsubscribe from this group, send an email to: > DigitalBlackandWhiteThePrint-unsubscribe@yahoogroups.com > � > � Your use of Yahoo! Groups is subject to the Yahoo! Terms of > Service. > > [Non-text portions of this message have been removed]
2005-03-16 by Walker Blackwell
that is, 16bit in the print file. I always have 16bit working files.
On Mar 16, 2005, at 05:44 PM, Walker Blackwell wrote: > > Nope. No difference really. I send 8bit to my printer. Make sure that > you flatten when you convert from 16bit to 8bit though. Otherwise it's > pointless. If you have blocked shadows to begin-with with noticeable > banding, keep it in 16bit. 8bit conversion will just worsen that > problem. (I've had to do 16bit with only 3 photos in the last two > years. It doesn't really come up much.) > > take care, Walker > > > On Mar 16, 2005, at 05:38 PM, john dean wrote: > >> >> Does anyone have any idea from practical experience if it makes any >> difference at all if I send a 16 bit greyscale file over to the 9600 >> through QTR >> rather than the 8 bit greyscale file? I usually scan and set up >> everthing in 16 >> bit then print out 8 bit. It is slow enough as it is and I don't want >> it any slower >> for these larger size prints I have to do tomorrow unless it is a >> sure thing >> super-ultra-pro-giclee improvement. >> >> John >> >> >> >> >> >> Please visit the Group Homepage to check the Files, and other >> resources as they are often being updated. >> >> 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: >> - As threads develop, trim off excess portions of earlier messages to >> keep them short. >> - Good manners are required at all time. No personal attacks or >> flames. Hostile, aggressive or argumentative users may be removed from >> the membership without notice. >> - Keep your posts and threads related to the group topic of digital >> B&W printing. Users who persistently make off-topic posts may be >> removed from the membership. >> - By posting on this forum you agree to abide by the group rules and >> guidelines, and to abide by the actions and decisions of the group >> Owner and Moderators. See Group Topic, Rules and Guidelines in the >> Files section: >> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/ >> >> BY PARTICIPATING IN AND/OR POSTING MESSAGES TO THE DIGITAL BW, THE >> PRINT YAHOO! GROUP YOU EXPRESSLY UNDERSTAND AND AGREE THAT THE OWNER >> AND MODERATORS OF DIGITAL BW, THE PRINT YAHOO GROUP SHALL NOT BE >> LIABLE TO YOU FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, >> CONSEQUENTIAL OR EXEMPLARY DAMAGES, INCLUDING BUT NOT LIMITED TO, >> DAMAGES FOR LOSS OF PROFITS, GOODWILL, USE, DATA OR OTHER INTANGIBLE >> LOSSES (EVEN IF THE OWNER AND MODERATORS OF DIGITAL BW, THE PRINT >> YAHOO GROUP HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES), >> RESULTING FROM: (i) THE USE OR THE INABILITY TO USE THE DIGITAL BW, >> THE PRINT YAHOO GROUP; (ii) UNAUTHORIZED ACCESS TO OR ALTERATION OF >> YOUR TRANSMISSIONS OR DATA; (iii) STATEMENTS OR CONDUCT OF ANY THIRD >> PARTY ON THE DIGITAL BW, THE PRINT YAHOO GROUP; OR (iv) ANY OTHER >> MATTER RELATING TO THE DIGITAL BW, THE PRINT YAHOO GROUP. >> >> >> >> >> >> Yahoo! Groups Sponsor >> >> ADVERTISEMENT >> <22305_0205_016_b_300250_a.gif> >> <l.gif> >> >> Yahoo! Groups Links >> >> To visit your group on the web, go to: >> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/ >> >> To unsubscribe from this group, send an email to: >> DigitalBlackandWhiteThePrint-unsubscribe@yahoogroups.com >> >> Your use of Yahoo! Groups is subject to the Yahoo! Terms of >> Service. >> >> > > [Non-text portions of this message have been removed] > > > > > Please visit the Group Homepage to check the Files, and other > resources as they are often being updated. > > 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: > - As threads develop, trim off excess portions of earlier messages to > keep them short. > - Good manners are required at all time. No personal attacks or > flames. Hostile, aggressive or argumentative users may be removed from > the membership without notice. > - Keep your posts and threads related to the group topic of digital > B&W printing. Users who persistently make off-topic posts may be > removed from the membership. > - By posting on this forum you agree to abide by the group rules and > guidelines, and to abide by the actions and decisions of the group > Owner and Moderators. See Group Topic, Rules and Guidelines in the > Files section: > http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/ > > BY PARTICIPATING IN AND/OR POSTING MESSAGES TO THE DIGITAL BW, THE > PRINT YAHOO! 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2005-03-17 by john dean
Thanks Walker. Sometime when I have time I will do a 16x20 test but I don't imagine the printer can process that extra information anyway. However, I assume each rip is different in the way it rips greyscale information. John --- In DigitalBlackandWhiteThePrint@yahoogroups.com, Walker Blackwell < lists@g...> wrote: > that is, 16bit in the print file. I always have 16bit working files. > > > On Mar 16, 2005, at 05:44 PM, Walker Blackwell wrote: > > > > > Nope. No difference really. I send 8bit to my printer. Make sure that > > you flatten when you convert from 16bit to 8bit though. Otherwise it's > > pointless. If you have blocked shadows to begin-with with noticeable > > banding, keep it in 16bit. 8bit conversion will just worsen that > > problem. (I've had to do 16bit with only 3 photos in the last two > > years. It doesn't really come up much.) > > > > take care, Walker > > > > > > On Mar 16, 2005, at 05:38 PM, john dean wrote: > > > >> > >> Does anyone have any idea from practical experience if it makes any > >> difference at all if I send a 16 bit greyscale file over to the 9600 > >> through QTR > >> rather than the 8 bit greyscale file? I usually scan and set up > >> everthing in 16 > >> bit then print out 8 bit. It is slow enough as it is and I don't want > >> it any slower > >> for these larger size prints I have to do tomorrow unless it is a > >> sure thing > >> super-ultra-pro-giclee improvement. > >> > >> John > >> > >> > >> > >> > >> > >> Please visit the Group Homepage to check the Files, and other > >> resources as they are often being updated. > >> > >> 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: > >> - As threads develop, trim off excess portions of earlier messages to > >> keep them short. > >> - Good manners are required at all time. No personal attacks or > >> flames. Hostile, aggressive or argumentative users may be removed from > >> the membership without notice. > >> - Keep your posts and threads related to the group topic of digital > >> B&W printing. Users who persistently make off-topic posts may be > >> removed from the membership. > >> - By posting on this forum you agree to abide by the group rules and > >> guidelines, and to abide by the actions and decisions of the group > >> Owner and Moderators. See "Group Topic, Rules and Guidelines" in the > >> Files section: > >> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/ > >> > >> BY PARTICIPATING IN AND/OR POSTING MESSAGES TO THE DIGITAL BW, THE > >> PRINT YAHOO! GROUP YOU EXPRESSLY UNDERSTAND AND AGREE THAT THE "OWNER" > >> AND "MODERATORS" OF DIGITAL BW, THE PRINT YAHOO GROUP SHALL NOT BE > >> LIABLE TO YOU FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, > >> CONSEQUENTIAL OR EXEMPLARY DAMAGES, INCLUDING BUT NOT LIMITED TO, > >> DAMAGES FOR LOSS OF PROFITS, GOODWILL, USE, DATA OR OTHER INTANGIBLE > >> LOSSES (EVEN IF THE "OWNER" AND "MODERATORS" OF DIGITAL BW, THE PRINT > >> YAHOO GROUP HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES), > >> RESULTING FROM: (i) THE USE OR THE INABILITY TO USE THE DIGITAL BW, > >> THE PRINT YAHOO GROUP; (ii) UNAUTHORIZED ACCESS TO OR ALTERATION OF > >> YOUR TRANSMISSIONS OR DATA; (iii) STATEMENTS OR CONDUCT OF ANY THIRD > >> PARTY ON THE DIGITAL BW, THE PRINT YAHOO GROUP; OR (iv) ANY OTHER > >> MATTER RELATING TO THE DIGITAL BW, THE PRINT YAHOO GROUP. > >> > >> > >> > >> > >> > >> Yahoo! Groups Sponsor > >> > >> ADVERTISEMENT > >> <22305_0205_016_b_300250_a.gif> > >> <l.gif> > >> > >> Yahoo! Groups Links > >> > >> To visit your group on the web, go to: > >> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/ > >> > >> To unsubscribe from this group, send an email to: > >> DigitalBlackandWhiteThePrint-unsubscribe@yahoogroups.com > >> > >> Your use of Yahoo! Groups is subject to the Yahoo! Terms of > >> Service. > >> > >> > > > > [Non-text portions of this message have been removed] > > > > > > > > > > Please visit the Group Homepage to check the Files, and other > > resources as they are often being updated. > > > > 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: > > - As threads develop, trim off excess portions of earlier messages to > > keep them short. > > - Good manners are required at all time. No personal attacks or > > flames. Hostile, aggressive or argumentative users may be removed from > > the membership without notice. > > - Keep your posts and threads related to the group topic of digital > > B&W printing. Users who persistently make off-topic posts may be > > removed from the membership. > > - By posting on this forum you agree to abide by the group rules and > > guidelines, and to abide by the actions and decisions of the group > > Owner and Moderators. See "Group Topic, Rules and Guidelines" in the > > Files section: > > http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/ > > > > BY PARTICIPATING IN AND/OR POSTING MESSAGES TO THE DIGITAL BW, THE > > PRINT YAHOO! 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2005-03-17 by Walker Blackwell
Yes and no. A "quadtone" setup relates to grey-scale bit-depth a bit closer than UC inks (because of ink-tone combos vs color combos) and I'm sure RIPs do interpret bitdepth differently. But when it gets down to it, ink is a totally different world and the information interpreted by the printer is really all the same. When using the RGB engine inside the 9600 (QTR does, right?), the color information is stripped slightly, but perceptual tonal "quality" is in the process of making a good digital file and the difference between a 16bit and 8bit file (after flattening!) is really nothing if you have a well linearized system and good profiles. A bad profile takes WAY more information out of your shadows/tonal "graduality" than a 16 to 8 bit conversion. peace, Walker On Mar 16, 2005, at 06:54 PM, john dean wrote: > > Thanks Walker. Sometime when I have time� I will do a 16x20 test but > I don't > imagine the printer can process that extra information anyway. > However, I > assume each rip is different in the way it rips greyscale information. > > John > > > > --- In DigitalBlackandWhiteThePrint@yahoogroups.com, Walker Blackwell > < > lists@g...> wrote: > > that is, 16bit in the print file.� I always have 16bit working > files. > > > > > > On Mar 16, 2005, at 05:44 PM, Walker Blackwell wrote: > > > > > > > > Nope. No difference really. I send 8bit to my printer. Make sure > that > > > you flatten when you convert from 16bit to 8bit though. Otherwise > it's > > > pointless. If you have blocked shadows to begin-with with > noticeable > > > banding, keep it in 16bit. 8bit conversion will just worsen that > > > problem. (I've had to do 16bit with only 3 photos in the last two > > > years. It doesn't really come up much.) > > > > > > take care, Walker > > > > > > > > > On Mar 16, 2005, at 05:38 PM, john dean wrote: > > > > > >> > > >>� Does anyone have any idea from practical experience if it makes > any > > >>� difference at all if I send a 16 bit greyscale file over to the > 9600 > > >> through QTR > > >>� rather than the 8 bit greyscale file?� I usually scan and set up > > >> everthing in 16 > > >>� bit then print out 8 bit. It is slow enough as it is and I > don't want > > >> it any slower > > >>� for these larger size prints I have to do tomorrow unless it is > a > > >> sure thing > > >>� super-ultra-pro-giclee improvement. > > >> > > >>� John > > >> > > >> > > >> > > >> > > >> > > >> Please visit the Group Homepage to check the Files, and other > > >> resources as they are often being updated. > > >> > > >> 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: > > >>� - As threads develop, trim off excess portions of earlier > messages to > > >> keep them short. > > >>� - Good manners are required at all time. No personal attacks or > > >> flames. Hostile, aggressive or argumentative users may be removed > from > > >> the membership without notice. > > >>� - Keep your posts and threads related to the group topic of > digital > > >> B&W printing. Users who persistently make off-topic posts may be > > >> removed from the membership. > > >>� - By posting on this forum you agree to abide by the group > rules and > > >> guidelines, and to abide by the actions and decisions of the > group > > >> Owner and Moderators. See "Group Topic, Rules and Guidelines" in > the > > >> Files section: > > >> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/ > > >> > > >>� BY PARTICIPATING IN AND/OR POSTING MESSAGES TO THE > DIGITAL BW, THE > > >> PRINT YAHOO! GROUP YOU EXPRESSLY UNDERSTAND AND > AGREE THAT THE "OWNER" > > >> AND "MODERATORS" OF DIGITAL BW, THE PRINT YAHOO GROUP > SHALL NOT BE > > >> LIABLE TO YOU FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, > > >> CONSEQUENTIAL OR EXEMPLARY DAMAGES, INCLUDING BUT NOT > LIMITED TO, > > >> DAMAGES FOR LOSS OF PROFITS, GOODWILL, USE, DATA OR > OTHER INTANGIBLE > > >> LOSSES (EVEN IF THE� "OWNER" AND "MODERATORS" OF DIGITAL > BW, THE PRINT > > >> YAHOO GROUP HAVE BEEN ADVISED OF THE POSSIBILITY OF > SUCH DAMAGES), > > >> RESULTING FROM: (i) THE USE OR THE INABILITY TO USE THE > DIGITAL BW, > > >> THE PRINT YAHOO GROUP; (ii) UNAUTHORIZED ACCESS TO OR > ALTERATION OF > > >> YOUR TRANSMISSIONS OR DATA; (iii) STATEMENTS OR CONDUCT > OF ANY THIRD > > >> PARTY ON THE DIGITAL BW, THE PRINT YAHOO GROUP; OR (iv) ANY > OTHER > > >> MATTER RELATING TO THE DIGITAL BW, THE PRINT YAHOO GROUP. > > >> > > >> > > >> > > >> > > >> > > >> Yahoo! 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Groups is subject to the Yahoo! > Terms of > > >> Service. > > >> > > >> > > > > > > [Non-text portions of this message have been removed] > > > > > > > > > > > > > > > Please visit the Group Homepage to check the Files, and other > > > resources as they are often being updated. > > > > > > 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: > > > - As threads develop, trim off excess portions of earlier > messages to > > > keep them short. > > > - Good manners are required at all time. No personal attacks or > > > flames. Hostile, aggressive or argumentative users may be removed > from > > > the membership without notice. > > > - Keep your posts and threads related to the group topic of > digital > > > B&W printing. Users who persistently make off-topic posts may be > > > removed from the membership. > > > - By posting on this forum you agree to abide by the group rules > and > > > guidelines, and to abide by the actions and decisions of the group > > > Owner and Moderators. See "Group Topic, Rules and Guidelines" in > the > > > Files section: > > > http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/ > > > > > > BY PARTICIPATING IN AND/OR POSTING MESSAGES TO THE DIGITAL > BW, THE > > > PRINT YAHOO! 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Groups Links > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Please visit the Group Homepage to check the Files, and other > resources as they are often being updated. > > 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: > - As threads develop, trim off excess portions of earlier messages to > keep them short. > - Good manners are required at all time. No personal attacks or > flames. Hostile, aggressive or argumentative users may be removed from > the membership without notice. > - Keep your posts and threads related to the group topic of digital > B&W printing. Users who persistently make off-topic posts may be > removed from the membership. > - By posting on this forum you agree to abide by the group rules and > guidelines, and to abide by the actions and decisions of the group > Owner and Moderators. See �Group Topic, Rules and Guidelines� in the > Files section: > http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/ > > BY PARTICIPATING IN AND/OR POSTING MESSAGES TO THE DIGITAL BW, THE > PRINT YAHOO! GROUP YOU EXPRESSLY UNDERSTAND AND AGREE THAT THE �OWNER� > AND �MODERATORS� OF DIGITAL BW, THE PRINT YAHOO GROUP SHALL NOT BE > LIABLE TO YOU FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, > CONSEQUENTIAL OR EXEMPLARY DAMAGES, INCLUDING BUT NOT LIMITED TO, > DAMAGES FOR LOSS OF PROFITS, GOODWILL, USE, DATA OR OTHER INTANGIBLE > LOSSES (EVEN IF THE� �OWNER� AND �MODERATORS� OF DIGITAL BW, THE PRINT > YAHOO GROUP HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES), > RESULTING FROM: (i) THE USE OR THE INABILITY TO USE THE DIGITAL BW, > THE PRINT YAHOO GROUP; (ii) UNAUTHORIZED ACCESS TO OR ALTERATION OF > YOUR TRANSMISSIONS OR DATA; (iii) STATEMENTS OR CONDUCT OF ANY THIRD > PARTY ON THE DIGITAL BW, THE PRINT YAHOO GROUP; OR (iv) ANY OTHER > MATTER RELATING TO THE DIGITAL BW, THE PRINT YAHOO GROUP. > > > > > > Yahoo! Groups Sponsor > > ADVERTISEMENT > <22305_0205_016_b_300250_a.gif> > <l.gif> > > Yahoo! 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2005-03-17 by Ernst Dinkla
QTR shows my Epson 10000 as well in the printer choices. Both are on the network so that's understandable. I'm wondering if that also means that there's a driver in QTR for the 10000. I'm not interested in quad printing on that machine (yet) but addressing the individual channels of the MIS 7600 inkset may be handy for some experiments in cyan + black printing as discussed. It will be handy anyway. Otherwise I will use the other RIP but that is CMYK channel only. Ernst
2005-03-17 by Scott Graham
Actually all the Epson printers, and probably the other brands, use 8 bit for printing so it makes no difference. If 16 bit goes to the printer it converts it to 8 bit. I suppose it is possible that the conversion method varies slightly between the printer and PS? but wouldn't think so. Scott --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "john dean" <deanwork2003@y...> wrote:
> > Thanks Walker. Sometime when I have time I will do a 16x20 test but I don't > imagine the printer can process that extra information anyway. However, I > assume each rip is different in the way it rips greyscale information. > > John > > > > --- In DigitalBlackandWhiteThePrint@yahoogroups.com, Walker Blackwell < > lists@g...> wrote: > > that is, 16bit in the print file. I always have 16bit working files. > > > > > > On Mar 16, 2005, at 05:44 PM, Walker Blackwell wrote: > > > > > > > > Nope. No difference really. I send 8bit to my printer. Make sure that > > > you flatten when you convert from 16bit to 8bit though. Otherwise it's > > > pointless. If you have blocked shadows to begin-with with noticeable > > > banding, keep it in 16bit. 8bit conversion will just worsen that > > > problem. (I've had to do 16bit with only 3 photos in the last two > > > years. It doesn't really come up much.) > > > > > > take care, Walker > > > > > > > > > On Mar 16, 2005, at 05:38 PM, john dean wrote: > > > > > >> > > >> Does anyone have any idea from practical experience if it makes any > > >> difference at all if I send a 16 bit greyscale file over to the 9600 > > >> through QTR > > >> rather than the 8 bit greyscale file? I usually scan and set up > > >> everthing in 16 > > >> bit then print out 8 bit. It is slow enough as it is and I don't want > > >> it any slower > > >> for these larger size prints I have to do tomorrow unless it is a > > >> sure thing > > >> super-ultra-pro-giclee improvement. > > >> > > >> John > > >> > > >> > > >> > > >> > > >> > > >> Please visit the Group Homepage to check the Files, and other > > >> resources as they are often being updated. > > >> > > >> 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: > > >> - As threads develop, trim off excess portions of earlier messages to > > >> keep them short. > > >> - Good manners are required at all time. No personal attacks or > > >> flames. 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2005-03-17 by john dean
> I suppose it is possible that the conversion method varies slightly between the printer and > PS? but wouldn't think so. > In terms of 16 bit to 8 bit conversion I wouldn't think so either. owever I know when you send a large file over to the 10K which is say 150 ppi or so the printer software does a remarkable job of ripping that file to 1440 and the output is a lot better than if you increased this file size in Photoshop to make a larger print from this less than appropriate file size. The driver does do things differently than Photoshop but exactly what and how that may apply to high bit files, I haven't a clue. I belive there are different theories about this. John
2005-03-17 by ray_maxwell2000
Actually you are wrong. The data sent to the printer head is not eight bits. It is only one bit. It tells the printer to print a dot or not print a dot. Some RIPs that send this data to the print head do indeed use 12 bits internally. In some printers you can choose from three dot sizes which requires 2 bits. Please know the facts, before posting. Thank you, Ray > Actually all the Epson printers, and probably the other brands, use 8 bit for printing so it > makes no difference. If 16 bit goes to the printer it converts it to 8 bit. > > I suppose it is possible that the conversion method varies slightly between the printer and
> PS? but wouldn't think so. > > Scott >
2005-03-17 by John Vitollo
Actually you are both right. But Ray lets be nice here and have respect for people. Scott was referring to information sent to the Epson print driver is converted to 8-bit..even if the file is 16-bit. Sure if you want to break it down to minutiae...yeah one-bit is sent to the each nozzle to fire it or not...sheesh! > > > > Actually all the Epson printers, and probably the other brands, use > 8 bit for printing so it > > makes no difference. If 16 bit goes to the printer it converts it > to 8 bit. > > > > I suppose it is possible that the conversion method varies slightly > between the printer and > > PS? but wouldn't think so. > > > > Scott > >- -- In DigitalBlackandWhiteThePrint@yahoogroups.com, "ray_maxwell2000" <rmaxwell@d...> wrote:
> Actually you are wrong. > > The data sent to the printer head is not eight bits. It is only one > bit. It tells the printer to print a dot or not print a dot. Some > RIPs that send this data to the print head do indeed use 12 bits > internally. In some printers you can choose from three dot sizes > which requires 2 bits. > > Please know the facts, before posting. > > Thank you, > > Ray
2005-03-17 by Kelsang Drime
Dear Ray, If we all knew the facts would there be a reason for this forum? From my side this forum functions to educate. It does so through the kindness of those who have great expertise and understanding and who are prepared to share that knowledge. For this I am grateful. Drime --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "ray_maxwell2000" <rmaxwell@d...> wrote: > SNIP
> Please know the facts, before posting. > > Thank you, > > Ray
2005-03-17 by brucenorikane
"ray_maxwell2000" <rmaxwell@d...> wrote: > > Actually you are wrong. > > The data sent to the printer head is not eight bits. It is only one > bit. It tells the printer to print a dot or not print a dot. Some > RIPs that send this data to the print head do indeed use 12 bits > internally. In some printers you can choose from three dot sizes > which requires 2 bits. > > Please know the facts, before posting. > > Thank you, > > Ray Ray, Are you sure? If the printhead data is only one bit, how does the printer address the variable dot size capability of the piezo head? Last time I looked, years ago, the ESCP commands used 2 bit data when the printer was in variable dot size mode. This would be data into the printer from the driver, not into the driver from the application. -bnn