Have you priced college textbooks lately? Again, low volume specialty/technical books do not enjoy the benefit of volume discounts.
SMPTE is a not-for-profit organization, with test films, publications, membership dues and conference registration fees being the primary income to cover all the other expenses of staff, standards coordination, conferences, local sections, and the SMPTE Journal.
http://www.kodak.com/US/en/motion/newsletters/notes/oct2001/pytlak.shtml
------------------
John P. Pytlak, Senior Technical Specialist
Worldwide Technical Services, Entertainment Imaging
Research Labs, Building 69, Room 7525A
Rochester, New York, 14650-1922 USA
Tel: 716-477-5325 Cell: 716-781-4036 Fax: 716-722-7243
E-Mail: john.pytlak@kodak.com
Web site: http://www.kodak.com/go/motion
I would think making a dupe of 35-PA would violate SMPTE's copyright (ie the right to copy).
Heck, They charge an arm and a leg for just their RPs, EGs and such...if it was OK to copy them, then why would anyone purchase them?
Steve
------------------
"Old projectionists never die, they just changeover!"
Steve Guttag said .....
"if it was OK to copy them, then why would anyone purchase them?" Because one still needs the precision aspect of the film now and then for real critial evaluation as well.......a good dupe is no less inferior in frame dimensions and steadiness than is needed for projector alignment or plate filing.
Perhaps SMPTE should offer to its customers a less expensive film for this purpose. But oh heck we wouldn't want a new film tool to appear in this e-cinema day and age would we...? Its fine to use the precision tool when needed but that is only once and a while. You don't use a micrometer to align rack plates.....
The prints I've had made and seen on films have looked really nice. I just wouldn't use it for resolution checks though......but when done on a wet gate printer it looks excellent!!
Mark
Making a wet gate print on a continuous contact printer WILL have the right image dimensions, but without pin registration, the frame may be shifted from the standard (SMPTE 195), especially in the vertical direction. Likewise I would be wary of using a print to evaluate unsteadiness, as you have added the unsteadiness of the printer.
Certainly, a print would not be a good test of resolution, since the contrast would be way too high, "blowing out" the detail in the resolution targets.
Of course, unless a reversal print film is used, you will get a NEGATIVE image of the chart.
Labs use the film for setting up their optical printers. That is why the film has BH perfs. (I've suggested a separate version with print film (KS-1870) perfs, but there was little interest).
------------------
John P. Pytlak, Senior Technical Specialist
Worldwide Technical Services, Entertainment Imaging
Research Labs, Building 69, Room 7525A
Rochester, New York, 14650-1922 USA
Tel: 716-477-5325 Cell: 716-781-4036 Fax: 716-722-7243
E-Mail: john.pytlak@kodak.com
Web site: http://www.kodak.com/go/motion
I really like Mark's idea; aligning and filing aperature plates is 95% of what I use 35PA for!
John, I think there will be renewed interest in the KS-1870 version of B&W 35-PA. There was some discussion about it at the last P-3 meeting. I think that the telecine folks will have to get a special version for them in BH-1866 perfs.
Steve
------------------
"Old projectionists never die, they just changeover!"
Why???
------------------
John P. Pytlak, Senior Technical Specialist
Worldwide Technical Services, Entertainment Imaging
Research Labs, Building 69, Room 7525A
Rochester, New York, 14650-1922 USA
Tel: 716-477-5325 Cell: 716-781-4036 Fax: 716-722-7243
E-Mail: john.pytlak@kodak.com
Web site: http://www.kodak.com/go/motion
------------------
John P. Pytlak, Senior Technical Specialist
Worldwide Technical Services, Entertainment Imaging
Research Labs, Building 69, Room 7525A
Rochester, New York, 14650-1922 USA
Tel: 716-477-5325 Cell: 716-781-4036 Fax: 716-722-7243
E-Mail: john.pytlak@kodak.com
Web site: http://www.kodak.com/go/motion