silkyfeet
Established
good work there i must say keep it up
Designing a new film scanner; need your help
- Thread starter quejai
- Start date
- Latest activity Latest activity:
- Replies 338
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Jake Mongey
Well-known
Good color reproduction
Good software
resolution
price
speed
Good software
resolution
price
speed
quejai
Established
By the way, I recon this will cost around 900AUD or 700USD to build.
aizan
Veteran
wow, excellent progress!
if the stitching and focusing can be done quickly and painlessly, cultural heritage institutions might be a potential market.
if the stitching and focusing can be done quickly and painlessly, cultural heritage institutions might be a potential market.
Johnmcd
Well-known
Great stuff! I'm glad my neg came in handy. Yes it's expired but always refrigerated.
So with the finished product, we assemble ourselves from a bit list etc.? Sounds like a half the fun 🙂
Cheers - John
So with the finished product, we assemble ourselves from a bit list etc.? Sounds like a half the fun 🙂
Cheers - John
Tijmendal
Young photog
Whoa! That's impressive!
Happy to see progress is being made.
Happy to see progress is being made.
jzagaja
Well-known
Sell license to Kodak this is how probably Logmar did with their 8mm camera. There will be great interest in home telecine machine with that magnification.
quejai
Established
What we're up to now is rebuilding the chassis, as I alluded to in some other recent posts. Every dimension of the earlier chassis is increasing slightly, the supporting panels are increasing in thickness (for rigidity), the aesthetics are changing slightly, etc.
A whole bunch of fresh mechanical parts were ordered, along with several meters of 20x20 V-slot, which forms the frame of the chassis. Just yesterday I finished cutting it to the required lengths, and I confirmed that you can infact cut it comfortably with a hacksaw (i.e. you don't need an expensive dropsaw), and drill holes in it properly with a power drill (i.e. you don't need a drill press or whatever they're called). Interestingly, oiling the blade of the hacksaw made it so much easier than otherwise.
So now, after scavenging some stuff from the previous chassis, we now have a pile of bits that will form the main section of the final scanner. The main thing left to do is to use a laser-cutter (my uni has a couple) to chop up some acrylic for the side supports, that should be done by next week, and then we can immediately begin assembling it together. Pics of it should follow.
I've also been working on the software/electrical side of things too, I've been involved in some other projects recently using OpenCV, which I think will be super suitable for fast image previews and maximum-quality final image output.
Regarding kodak licencing - I mean it's not a bad idea, but I'd prefer not to mess with that sort of businessy stuff regarding film anymore, otherwise I'd have to take this project a bit more seriously which might kill the fun factor.
Anyway, a brief update for now.
A whole bunch of fresh mechanical parts were ordered, along with several meters of 20x20 V-slot, which forms the frame of the chassis. Just yesterday I finished cutting it to the required lengths, and I confirmed that you can infact cut it comfortably with a hacksaw (i.e. you don't need an expensive dropsaw), and drill holes in it properly with a power drill (i.e. you don't need a drill press or whatever they're called). Interestingly, oiling the blade of the hacksaw made it so much easier than otherwise.
So now, after scavenging some stuff from the previous chassis, we now have a pile of bits that will form the main section of the final scanner. The main thing left to do is to use a laser-cutter (my uni has a couple) to chop up some acrylic for the side supports, that should be done by next week, and then we can immediately begin assembling it together. Pics of it should follow.
I've also been working on the software/electrical side of things too, I've been involved in some other projects recently using OpenCV, which I think will be super suitable for fast image previews and maximum-quality final image output.
Regarding kodak licencing - I mean it's not a bad idea, but I'd prefer not to mess with that sort of businessy stuff regarding film anymore, otherwise I'd have to take this project a bit more seriously which might kill the fun factor.
Anyway, a brief update for now.
gcard
Newbie
Great stuff quejai!
I'm very excited to see the final result! Keep up the good work 😉
I'm very excited to see the final result! Keep up the good work 😉
Asprine
Member
Any news or new samples?
Where are we at?
Where are we at?
quejai
Established
Funny you should ask now.
Other than time, everything is on track.
Within the past week, uni exams have finished (meaning I can work on this again), a whole bunch of lasercut stuff arrived (assembly began today on the final version, pics below) and I had a new idea for how to do the holders.
Basically a big roadblock has just been passed (the acrylic arriving) and now I have lots more time to work on it, so expect regular and interesting updates. I'm going to try to pump out some more samples/tests or pics over in about 6 hours or so.
Attachments
Tijmendal
Young photog
That's looking really good!
quejai
Established
thanks!
I kept building it today, bloody hell there are a lot of bolts, then threw on the same 'private wharf' negative as earlier and got the same sort of results. Over the next few days I anticipate finishing the electronic focusing system, which will make doing tests a lot easier.
Here are some more pics! Still a couple of end panels to go on
I kept building it today, bloody hell there are a lot of bolts, then threw on the same 'private wharf' negative as earlier and got the same sort of results. Over the next few days I anticipate finishing the electronic focusing system, which will make doing tests a lot easier.
Here are some more pics! Still a couple of end panels to go on
pyeh
Member of good standing
Looking good, quejai.
For all Sydney RFFers, there'll be a lunch and/or dinner meetup on December 3. Look for a post in the Australia and NZ Regional Club sub-sub-sub-subforum.
For all Sydney RFFers, there'll be a lunch and/or dinner meetup on December 3. Look for a post in the Australia and NZ Regional Club sub-sub-sub-subforum.
Asprine
Member
Thanks for the update.
Its already looking like a professional machine.
Looking forward to your next posts.
Still scared for dust though when i see all those open spaces.
Its already looking like a professional machine.
Looking forward to your next posts.
Still scared for dust though when i see all those open spaces.
Brian Puccio
Well-known
This is an amazing project, every iteration has shown not just more promise but also just how diligent and clever you are. Well done and good luck with this!
Talus
pan sin sal
Subscribed to see where this goes. Keep up the good work!
quejai
Established
Thanks all
Dust - Yes there is a fair bit of surface area isn't there. I do plan to make an enclosure, with a fan to keep dust out, and to deal with dust on the film the current idea is to get some dust-absorbing rollers from cleanroom suppliers, and just roll the film against that before putting it in the scanner. That's the initial method, although calebarchie and I are both working on more integrated electrostatic approaches that will take more time to develop. Be aware that Kodak's standard method for cleaning motion picture film involves dipping it in some solvent - I'm not all that familiar with this, but that approach could be used here too for more stubborn dirt.
Getting the electrofocus system to work is taking more time than I was intending, but today I realised that I had something done up a bit too tight which was making other things stick.
Also, another test. On the sensor 1 pixel corresponds to 1 micron on the film, not sure what that is in ppi. The 20x lens was used. This is beyond any useful resolution and has fully passed into silly territory. 400iso ultrafine extreme in 35mm, photo taken on my phone of a computer screen. Also the negative has been inverted here, showing a high contrast area.
Dust - Yes there is a fair bit of surface area isn't there. I do plan to make an enclosure, with a fan to keep dust out, and to deal with dust on the film the current idea is to get some dust-absorbing rollers from cleanroom suppliers, and just roll the film against that before putting it in the scanner. That's the initial method, although calebarchie and I are both working on more integrated electrostatic approaches that will take more time to develop. Be aware that Kodak's standard method for cleaning motion picture film involves dipping it in some solvent - I'm not all that familiar with this, but that approach could be used here too for more stubborn dirt.
Getting the electrofocus system to work is taking more time than I was intending, but today I realised that I had something done up a bit too tight which was making other things stick.
Also, another test. On the sensor 1 pixel corresponds to 1 micron on the film, not sure what that is in ppi. The 20x lens was used. This is beyond any useful resolution and has fully passed into silly territory. 400iso ultrafine extreme in 35mm, photo taken on my phone of a computer screen. Also the negative has been inverted here, showing a high contrast area.
Attachments
Jockos
Well-known
1 inch is 25400 microns. If 1 micron is 1 pixel, that'd give you a resolution of 25400ppi - pixels per inch. 😱
jzagaja
Well-known
That high magnifications are great for 8mm movies on Kodak Vision 50D.
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