2001-09-26 by mh@toomanyartists.com
... Simple answer; because you are scanning into a 16bit space and the scanner is not 16bits. That 3.7 worth of information is linearly placed along the 16bit
Thread view
Attachments: 0
2001-09-26 by mh@toomanyartists.com
... okay, well why don t you make a CCD with more volts and less noise? You can t put aside our theoretical arguments by saying a CCD has noise. ... Why does
Thread view
Attachments: 0
2001-09-26 by mh@toomanyartists.com
... Never mind about that, I guess when you said the way current scanners are designed you were correct. ... I don t know about 3.2 drange, but how about the
Thread view
Attachments: 0
2001-09-26 by Austin Franklin
... That s a misnomer. Analog is not infinite. It is limited by noise, and that is what dynamic range is...the largest signal over the noise. If you have a
Thread view
Attachments: 0
2001-09-26 by Austin Franklin
... I didn t see you point this out anywhere in your post here... I just don t understand why we re discussing this, it s just a plain fact when representing
Thread view
Attachments: 0
2001-09-26 by Todd Flashner
Austin, I m going to take a different approach here. The point/counter-point has got my head spinning. We ve spanned too many posts for me to put it all
Thread view
Attachments: 0
2001-09-26 by mh@toomanyartists.com
... What he is saying is that the CCD s voltage is analog and therefore infinite. Why can t, using your above example, someone make a scanner using the more
Thread view
Attachments: 0
2001-09-26 by mh@toomanyartists.com
I am glad to see that others finally got involved in the old bit depth discussion Austin and I have been having! I ll address the issues below, / ... Austin,
Thread view
Attachments: 0
2001-09-26 by Austin Franklin
... A higher DR gives that, yes. ... No. Typically, the input to the A/D will be +- 3 volts, for a 6V total swing. Then each bit represents N millivolts.
Thread view
Attachments: 0
2001-09-26 by Nicholas Hartmann
... Lon - On a very basic level: make sure the printer is switched on and the green light is steady (not blinking). Go back into the Chooser, highlight or
Thread view
Attachments: 0
2001-09-26 by hgporter@yahoo.com
This is a cross-Post from the PiezoBW forum. Has anyone seen results from the Nikon 8000? I have read reviews from several sources and the results are mixed
Thread view
Attachments: 0
2001-09-26 by tyork@accesscable.net
Hi Trish, Where did you post the images? I am very interested in selenium- toned prints and this would be a very useful guide as to how I am doing. Thank you.
Thread view
Attachments: 0
2001-09-26 by Alessandro Pardi
Austin, let s see if I got it right: the DR tells us how deep the scanner can see into the film, and so higher DR values mean higher ranges of the analog
Thread view
Attachments: 0
2001-09-26 by Jose Luis Martinez
Julian, ¡Great news! I ll be there. This is probalbly the first Piezo exhibition in Barcelona (¡and maybe in Spain!). ¡Can t miss it! Un saludo, Jose Luis
Thread view
Attachments: 0
2001-09-26 by Kees Brandenburg
Hi, Do you have the latest 1160 driver and update? You can find them here: You have
Thread view
Attachments: 0
2001-09-26 by Julian Thomas
Thanks! This is the start of something whereas the sp has been going on for 12 months. I ve just found the contact I ve been trying to find since moving
Thread view
Attachments: 0
2001-09-26 by Austin Franklin
... I would agree, especially if you just index your counter off the value...then all you are taking up is more memory, but no more processing. The counters
Thread view
Attachments: 0
2001-09-26 by Julian Thomas
Thanks Martin. The exhibit is of my Street stuff - only problem is as someone has just said to me no one buys streetstuff! Sad but true. Go-fly hav echeap
Thread view
Attachments: 0
2001-09-26 by Jason DeFontes
It wouldn t take any longer to calculate a 16 bit histogram. To calculate the distribution of pixels values in an image you have to count every pixel. The
Thread view
Attachments: 0
2001-09-26 by Todd Flashner
... Sorry His site is www.digitaldog.net, but I got it from a discussion on another list. Perhaps I ll get you the entirety of the post at a later point.
Thread view
Attachments: 0
2001-09-26 by lon_c@hotmail.com
I have no experience with a Mac. I have a friend with a Mac that also has very little experience. We are trying to get an Epson 1160 printer working on his
Thread view
Attachments: 0
2001-09-26 by Austin Franklin
... Where did you get that quote from? I tried www.digitaldog.com, and it s a web site about dogs...real dogs...as in woof, woof ;-)
Thread view
Attachments: 0
2001-09-26 by Austin Franklin
... This is a fact. Please. Bit depth IS a limiting factor of dynamic range in the way current scanners are designed. ... Well, yes it does. I ll bet you
Thread view
Attachments: 0
2001-09-26 by Austin Franklin
... I believe that s not really right. The holes in the values don t get interpolated...the holes are just left as holes. Think about it, what pixels are
Thread view
Attachments: 0
2001-09-26 by Todd Flashner
... Martin, I believe this is confusing because Austin has been trying for a long time to make dynamic range a function of bit depth, and it just doesn t work
Thread view
Attachments: 0
2001-09-26 by Austin Franklin
... No. It means that you need to have headroom within the space to make adjustments. ... I don t know what you mean. Be careful when you say 16 bit data .
Thread view
Attachments: 0
2001-09-26 by Martin Wesley
... wrote: (snip) ... losing data. ... of a lower ... already had ... course). Todd, Austin, Let s see if I can muddy the waters here. Any time you make any
Thread view
Attachments: 0
2001-09-26 by Todd Flashner
Austin, Thanks for the effort. Ready for more? ;-) ... I see, that makes sense to me. ... No, I don t want to talk about 8-bit, or about doing it in the scan.
Thread view
Attachments: 0
2001-09-26 by Martin Wesley
Jerry, I think you are probably right in terms of the mechanics of the printers but if the firmware is different, then electronically they are different
Thread view
Attachments: 0
2001-09-26 by Carolyn Frayn
Trish, Thank you so much for posting those wonderful photos and the comparisons of the different dilutions and time in selenium toner... Your time spent at
Thread view
Attachments: 0
2001-09-26 by Andre Vallejo
There s something more in this soup,because even with the dynamic range of a chrome not being more than 3.6,a scanner about 4.3DR as the new Nikon 4000 or
Thread view
Attachments: 0
2001-09-26 by Austin Franklin
... Yes, but the difference would only be 1/2 of what they show it is...since it s +/-. ... Yes, this is actually a pet peeve of mine. The current way
Thread view
Attachments: 0
2001-09-26 by Austin Franklin
... Yes, on a different page than the images I was talking about! Amazing! Thanks for pointing that out.
Thread view
Attachments: 0
2001-09-26 by Austin Franklin
... For 12/14 bit data setpointed (expanded) in 16 bit space, it depends on the size of the move. You can lose data by ending up having more different values
Thread view
Attachments: 0
2001-09-25 by Jerry Olson
Sorry Bernd, The Printers are the same, but the DRIVERS aren t! My mistake. Also, I suppose the voltage is different... Jerry
Thread view
Attachments: 0
2001-09-25 by Nij
Bernd, I am in the camp (without definite confirmation at this time) that the printers are the same barring: 1) Power supply; 2) Paper-edge sponge thinggies
Thread view
Attachments: 0
2001-09-25 by ternahan
Julian, These images are very interesting indeed. Show us more! I wish I could see them on the photo rag...they come very close to glowing on my monitor. I ll
Thread view
Attachments: 0
2001-09-25 by Todd Flashner
... Austin, as you can imagine I write this with great trepidation, as I m sure you will read it with with great suspect, but I d like to try to work through
Thread view
Attachments: 0
2001-09-25 by ternahan
Martin, Yes, they are toned selenium prints at different dilutions (1:5 and 1:9) .... ..archival at 1:9 and warm tone at 1:5. The difference between the
Thread view
Attachments: 0
2001-09-25 by Martin Wesley
Bernd, Well that certainly settles the question and makes me really wonder about Epson. Why would they do this? Hopefully it is a straightforward step change
Thread view
Attachments: 0
2001-09-25 by Moreno Polloni
... There s a little disclaimer at the bottom of the page that says Images are simulated . In otherwords, the dramatic differences they re showing are BS.
Thread view
Attachments: 0
2001-09-25 by Martin Wesley
Trish, I have lost track. Are these scans of untoned and selenium toned silver prints? I liked delicate tones you captured in the B&W of the orchids and the
Thread view
Attachments: 0
2001-09-25 by Martin Wesley
Julian, Wish I could make your opening and see your work in person. The images on the Photo.net site are very good and very intriguing. You have an interesting
Thread view
Attachments: 0
2001-09-25 by Martin Wesley
... whole ... print! ... make ... what they ... bit vs 16 ... fidelity... . That ... show is ... such as ... of 16 ... losing data. ... wouldn t be ... are
Thread view
Attachments: 0
2001-09-25 by Ruhrfoto/Bernd L.
... wrote ... Martin, Jerry, I just downloaded the 1280 driver from the Epson website. It doesn´t run my 1290. Have to be patient until Paul
Thread view
Attachments: 0
2001-09-25 by ternahan
The link is finally working. thanks for your patience. t ternahan@gentlelens.net You are invited to visit: http://www.photo.net/photodb/folder?folder_id=150137
Thread view
Attachments: 0
2001-09-25 by Julian Thomas
Sure!! I ll post the final show later in the week. But I have some new stuff that I ve just posed to photo.net. The prints of these are the best things I ve
Thread view
Attachments: 0
2001-09-25 by Jerry Olson
Bernd, it s true. they are the same printer. I get excellent results using the VM inks and Paul s curves. Jerry
Thread view
Attachments: 0
2001-09-25 by ternahan
congratulations...will you post online for those of us to far away to come? t ternahan@gentlelens.net You are invited to visit:
Thread view
Attachments: 0
2001-09-25 by Austin Franklin
... I believe they are not being honest here, or just plain don t know what they are talking about. There is a little link to a URL that shows 14 bit vs 16
Thread view
Attachments: 0