MTC Photography Posted August 22, 2002 Share Posted August 22, 2002 It would'nt be difficult for Agfa or other companies to make special run of perforated Copex HDP, by running through a film perforator<p> SPUR did the same thing: got some company to perforate for them Agfa Copex Rapid. Link to comment Share on other sites More sharing options...
MTC Photography Posted August 22, 2002 Share Posted August 22, 2002 The main reason I don't believe gigabitfilm is the same film as the film used by SPUR is the picture from gigabit looks so different <p>http://www.gigabitfilm.de/images/funke1_large.jpg. with gigabitfilm <p>http://www.8x11film.com/bilder/cop3515.jpg with Agfa Copex Rapid <p>The two pictures were all taken with 35mm camera. If the films are identical, developers are alike, why result so different ? Link to comment Share on other sites More sharing options...
MTC Photography Posted August 25, 2002 Share Posted August 25, 2002 The fact is, Schain and Partner did ask some undisclosed company to perforate some film for them. Link to comment Share on other sites More sharing options...
marcus_dunkmann Posted August 25, 2002 Share Posted August 25, 2002 Martin: you are definitely wrong! The film comes perforated on bulk rolls and packed in boxes directly from agfa geavert Belgium. They perforate it, it is a regular product of the company. I have these bulk rolls here for sale, they have never been opened od handled since they left the factory and are packed with foil. The perforation is work of Agfa ! Marcus Link to comment Share on other sites More sharing options...
david_foy1 Posted September 8, 2002 Share Posted September 8, 2002 re: H&W Control VTE Pan: The instruction sheet packed with my sample 120 size roll of this film in 1972 included this statement: "H & W CONTROL VTE Panchromatic Film is available also in 35mm x 36-exposure and 35mm x 20-exposure cartridges, and in 35mm x 100' bulk rolls. It is manufactured by Agfa-Gevaert and distributed by them in the form of unperforated microfilm as Copex Pan Rapid." David Foy Link to comment Share on other sites More sharing options...
MTC Photography Posted September 8, 2002 Share Posted September 8, 2002 A clue that may reveal that gigabitfilm is indeed Agfa Copex Rapid<p> At gigabitfilm website, the technical description about gigabitfilm stated that the back of gigabitfilm has small irregularities, which at low density area may show up on large size enlargments, and can be removed by acetone. When I examined my undeveloped Agfa Copex Rapid film, with Emoscope, I found that there are indeed many small green color spots, round shape, each spot has a halo ring around it. After development and fixing, the antihalation layer disappeared. <p> I suspect the Tura line of microfilm could be the same Agfa Copex Rapid. A quick examination of Tura microfilm with high power loupe may help to identify whether Tura is Agfa Copex or not, if there are green spots at the antihalation layer, than it is most probably Agfa Copex Rapid in different name, other wise, not.<p> The green spot is the birthmark of Agfa Copex Rapid film.<p> Link to comment Share on other sites More sharing options...
MTC Photography Posted September 8, 2002 Share Posted September 8, 2002 Macus, when I stated that SPUR ask some one to perforate some film, I did not meant 35mm bulk Agfa Copex Rapid, I meant SPUR ask some one to perforate some film in 16mm format, did they ? <p> My point was there are companies out there who has equipment and can perforate film at any size. I am still leaning to believe that gigabitfilm may not be exactly Copex Rapid, but some other film. For example Copex HDP, which has no perforation <p> I asked Dr. Schain about gigabitfilm, and Copex HDP<p> Dr. Schain replied that afar as he knows, Copex HDP is not suitable for pictorial use, even with special developer. However,I still have doubt, as gigabit clearly offer 4x5" format gigabitfilm. And AFAIK, there is no wide roll Copex Rapid, only Copex HDP comes in 105 (?) mm wide bulk-- which can be cut into 4x5" size. If gigabit uses Copex HDP for 4x5", there is no reason to exclude that they use HDP as "gigabitfilm". Link to comment Share on other sites More sharing options...
MTC Photography Posted September 8, 2002 Share Posted September 8, 2002 Re: green spots<p> Gigabitfilm only stated that their film has 'irregularity', no mention what color or shape these irregularities look like.<p> So I am not 100% sure the 'irregularity' of gigabitfilm is the same thing as Agfa Copex Rapid small round shape with ring green spots. Any one who used gigabitfilm care to take a look with a 20x loupe at the film back, to see what these gigabitfilm irregularities look like ? Link to comment Share on other sites More sharing options...
wolfgang_fischer Posted February 22, 2003 Share Posted February 22, 2003 Could not a SLR camera mirror be adapted to the enlarger?A lot of work, but maybe it's a solution.Wolfgang Fischer "That said, Minox first surface mirror is hard to come by, it is a collector item. -- Martin Tai , August 07, 2002; 06:20 P.M. Eastern " Link to comment Share on other sites More sharing options...
MTC Photography Posted February 23, 2003 Share Posted February 23, 2003 Wolfgang wrote: "Could not a SLR camera mirror be adapted to the enlarger? A lot of work, but maybe it's a solution" Great idea ! The SLR mirror is very high quality mirror, some has multiple layer coatings. I think one can buy the SLR mirror part, worth a try. martin Link to comment Share on other sites More sharing options...
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