Home › Forums › TWAIN Classic › warm up window – workaround needed
- This topic has 5 replies, 3 voices, and was last updated 15 years, 4 months ago by pirulo_1979.
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I need to scan same old super8 film with an epson perfection photo 4180.
I tried to scan the the film in horizontal.but it wasn t a good idea at least for 2 reasons.the first was that the focus is not unique on the whole line.some how there was some small change and also the light intensitive was not the same in the whole line.Then I tried to scan them in vertical which gave me better result.But I’m face a big problem with that.
The film cover the “warm up window” and the result is that the film scan has got a long white line along the film.My question is: Can I make a scan without film in the “warm up window” and after using twain send the same value when I have the film on that window?
ok, I’ve read the post 4 times now and while I still don’t know what you’re talking about I am curious (or slow… or both).
Could you ask that question again but with all different words?.
Sorry for my not clear explanation.But is not that easy to explain 🙂
So if you scan positive films you can use the mask what you got with the scanner.In all epsons scanner for sure you will notice that there is part of this mask which is not allowed to be covered by the film.In fact this part is used by the scanner in order to make a kind of white balance before scanning the film.I was looking for a way to avoid this balancing or to force some one with a fix setup.I need to do that because if the film cover this part of the scanner the scanned image will be with alterated colours.
Hope i was a bit more clear, if not just ask me again 🙂 thanks for you help anyway.Sounds like you want to do a transparency scan that relies on previously generated (or default) calibration data so the scanner won’t need to use the calibration window which is blocked by the film.
I don’t have the answer. Just trying to restate your question clearly.
If you don’t get an answer here, try directing your question to Epson’s support staff. I bet there are people at Epson who know what that model can do and how to do it. It may take some persistence to track down someone who knows the answer.
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It may take some persistence to track down someone who knows the answer
It may take some serious persistence to track down anyone who knows anything at all about twain is closer to the truth, but I generally agree, the vendor is a decent bet. Just be patient with them.
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Thanks for your help. I ll try with the vendor, but i think they don’t know and I m sure they don t like when you use twain commands directly without using their own software.They will say it makes the scanner unstable. 🙂 . Actually i was training to sniff the communication within my scanner and software to see if some twain value was changing if the film was covering the “proibit area” or if not.Actually I couldn t noticed any different.That’s why I asked here. Who knows maybe the informations which are collected during the calibration are store just in the scanner.
Indeed in some other forum they says that it is not a calibration, they say that when you scan positive films and you are using the up llamps the scanner needs to setup the value of the white.so it needs to balance the white according with the light provided by the lamp. Thanks all I know. thanks again for helping.- AuthorPosts