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There is a settings for an offset in the frame scanning as well as size so than you can scan a "sub-frame", I don't know if it's the same thing for the Perfection ?

A little reading about the retro engineering process : https://ronangaillard.github.io/posts/reverse-engineering-epson-filmscan-200/

Hey cheesestraws ! Thanks for your interest, here is the link : https://github.com/ronangaillard/fs200-classic-mac Everything is not super clean, but there are some useful information I guess 😊

After a lot of reverse engineering, I finally cracked the frame selection : thanks to the ESC P (SetBay) command format The correct format is two identical bytes, both containing the frame number (1-indexed). I was trying [frame-1, 0] (0-indexed with mode byte) based on the 68k driver...

Hi everyone, Following up, I decided to take a different approach: writing a direct SCSI driver in C to control my Epson FilmScan 200, bypassing TWAIN entirely. The goal is to automate multi-frame scanning and save directly to disk. What I've discovered so far: The FilmScan 200 uses the...

Sorry ! I did not mean than PPC macs are not retro ! :D It's just that I don't have one ! I thought that the first ViewScan versions were for PPC, I'm going to have a look ! Thanks !

Unfortunately I don't have a modern machine with SCSI ! And I wanted a retro mac to be part of the scanning process 😉

I need to have a look. I'm not really confident as it's a film scanner it needs to scan six images in a row. But I'm going to have a look still ! Also the SCSI protocol is freely available in the service manual ! (I don't know if this was common at the time)

Thanks for your help ! Yes I guess you are right, the direct disk save must rely on the TWAIN driver/app. This scanner is not very popular so there is limited resource on the internet but I'll take another dive ! (Fun fact, the system 7 driver is still available on Epson official website) I'm...

Unfortunately there are only "Screen" and Printers in this list. I also thought I could add some kind of "file" destination but unfortunately no. I tried GC 3.7.2 but it had no TAWIN support. I then tried with 4.1 and it manages to scan a single picture (whereas PS 4 manages to scan 6 images...

Thanks for that detailed answer ! Unfortunately I went through the manual, and also though the "TWAIN interface" but I don't think there's a way to directly scan to disk. Here are some screenshots (nothing to play with, weirdly I cannot even set the Scanning Quality to "Fine") : That's very...

Hi everyone, I just got a Epson FilmScan 200 for cheap to scan my 35mm films on my SE/30. I finally managed to make it work and here is my current workflow : - Opening Photoshop 4.0 - File -> Acquire -> TWAIN Scan - Epson programs/plugin launches - Tick the six checkboxes in order to scan the...

Hi ! Sorry life got me very busy, and I lack enough motivation to go to the end of the project. The hardware part works perfectly, I was able to send packets and communicate through SCSI to my Mac. Unfortunately the retro enginering part of the original hardware I was trying to replicate takes...

Congrats ! Following with attention the next steps !

Sorry for the long delay. You can do what you want with the files, even a commercial usage. Try to mention me somewhere if possible.

Could it be that your usb port doesn't provide enough current, that could lead to some random behavior. Is you adb keyboard un plugged ? Are you able to try this on a stock arduino which is not soldered ?

Thanks for the feedback. I'm working with the Nuvotech driver right, and I wanted to stick to it because of performance. And I thought that switching to dayna would not fix my problems, as I may have issue with my SCSI layer implementation. But after reading your answers maybe my issue is a...

Hi everyone, I've been finding time between work and home renovation, but unfortunately I can't fix the instability (maybe due to the SCSI protocol software implementation on my side). It's a lot of energy for a silly and single (?) bug but that makes to project unusable. I'm starting to get...

Hey, You would need : - pcb - a resistor - an adb connector to solder - a Pro-Micro arduino (often come with headers so no need to buy some more) I would say that if it's a ProMicro clone you should not have issues, but make sure it's a true copy to make sure it's pin to pin compatible. It...

I need to make some little hardware fixes, and find a way to manufacture a few of them before selling. I will keep you updated but this make take some time as I'm still busy with life/work :(