Go Back   Rangefinderforum.com > Cameras / Gear / Photography > Rangefinder Forum > Rangefinder Photography Discussion

Rangefinder Photography Discussion General discussions about Rangefinder Photography. This is a great place for questions and answers that are not addressed in a specific category. Take note there is also a General Photography forum.

Reply
 
Thread Tools Search this Thread Display Modes

Using your smart phone and laptop screen as a film scanner
Old 10-08-2018   #1
Steve M.
Registered User
 
Steve M. is offline
Join Date: Jun 2009
Posts: 3,382
Using your smart phone and laptop screen as a film scanner

Sometimes I get wacky ideas soaking in the tub at home. So I dried off, taped a couple of negs to my laptop screen, took photos of them w/ my phone, emailed them to myself, downloaded them into a folder, and played with the files in Photoshop.

The 6x6 neg came out pretty well because it was well exposed, but the phone was picking up the grid lines on my laptop screen, so this would work better w/ a light table (or a homemade one, and that's the next project).

The 6x9 neg came out crappy because it was under exposed, and there's only so much you can do w/ a handheld smart phone used as a scanner. But I think that if I had a proper light source and well exposed negs this might work well enough for emails and basic proofs.





  Reply With Quote

Old 10-08-2018   #2
dfranklin
Registered User
 
dfranklin is offline
Join Date: Oct 2013
Location: Cambridge, MA, USA
Age: 43
Posts: 99
I recommend the new FilmLab app for the iPhone as a tool for the uses you mention--email and basic proofs.
  Reply With Quote

Old 10-08-2018   #3
Steve M.
Registered User
 
Steve M. is offline
Join Date: Jun 2009
Posts: 3,382
That's an interesting tip. Thanks. Would it improve the image quality any?
  Reply With Quote

Old 10-08-2018   #4
Steve M.
Registered User
 
Steve M. is offline
Join Date: Jun 2009
Posts: 3,382
Oh, I see now. That app apparantly combines multiple RAW images into one image w/ the idea of improving the image quality? I'll have to give it a shot. I did notice in the video that the guy had a proper light table.

https://www.youtube.com/watch?v=wE6GQXJfm6M

Whoops, never mind. They want to charge people for each scan after your free scans are used up? In their dreams! I'll do it myself, and I bet I can equal or better their quality. The idea of multiple RAW images from one photo sounds pretty questionable to me anyway, what w/ physics and all.
  Reply With Quote

Old 10-09-2018   #5
Godfrey
somewhat colored
 
Godfrey's Avatar
 
Godfrey is offline
Join Date: Dec 2011
Posts: 9,151
Quote:
Originally Posted by Steve M. View Post
Oh, I see now. That app apparantly combines multiple RAW images into one image w/ the idea of improving the image quality? I'll have to give it a shot. I did notice in the video that the guy had a proper light table.

https://www.youtube.com/watch?v=wE6GQXJfm6M

Whoops, never mind. They want to charge people for each scan after your free scans are used up? In their dreams! I'll do it myself, and I bet I can equal or better their quality. The idea of multiple RAW images from one photo sounds pretty questionable to me anyway, what w/ physics and all.
Yes, you need a proper light source. The pixelations of a tablet display degrade the image.

FilmLab doesn't make a charge per image. I think that the download simply runs free for a number of exposures and then asks you to pay for the app. I can't be sure since as a Kickstarter supporter of the project, I received the final release version all paid for.

FilmLab works very well, I'm pleased with what Abe Fettig has delivered.

G
  Reply With Quote

Old 10-09-2018   #6
Huss
Registered User
 
Huss is offline
Join Date: Sep 2014
Location: Venice, CA
Posts: 7,724
Quote:
Originally Posted by Steve M. View Post
Oh, I see now. That app apparantly combines multiple RAW images into one image w/ the idea of improving the image quality? I'll have to give it a shot. I did notice in the video that the guy had a proper light table.

https://www.youtube.com/watch?v=wE6GQXJfm6M

Whoops, never mind. They want to charge people for each scan after your free scans are used up? In their dreams! I'll do it myself, and I bet I can equal or better their quality. The idea of multiple RAW images from one photo sounds pretty questionable to me anyway, what w/ physics and all.
In their dreams? They had to create it, put money into it and they only charge $5.99 for it.

Thread here:
https://www.rangefinderforum.com/for...d.php?t=166403

But yes for quality scans u can't use your monitor or ipad, u need a proper light pad. Lots of threads on that.
  Reply With Quote

Old 10-09-2018   #7
Filter Factor
Registered User
 
Filter Factor is offline
Join Date: Sep 2018
Posts: 78
Hi Steve,

Yes, you've stumbled onto a very bare-bones version of the popular DSLR/macrolens scanning technique. One that has been very successful for many of our members here! Use of a tripod and a way to accurately ensure that the plane of the negative is parallel to that of the sensor will help improve things quite a bit. As well as finding a way to raise the negative up off the computer screen/light source. The grid pattern or pixels of the screen will disappear if you can raise the negative up off of the light source.

Cheers, Robert
  Reply With Quote

Old 10-09-2018   #8
Scapevision
Registered User
 
Scapevision is offline
Join Date: Jul 2014
Location: Toronto
Posts: 469
you can use the screen as long as you elevate the negatives away from it. This way the pixels get out of focus and you won't notice.
__________________
Flickr
scapevision.ca
Instagram
  Reply With Quote

Old 10-09-2018   #9
skucera
Registered User
 
skucera's Avatar
 
skucera is offline
Join Date: Aug 2015
Location: Harrisburg, Oregon, USA
Posts: 274
You could go more analog. A simpler way to illuminate from the back might be to tape a piece of plain white paper to a north facing window, then tape your negatives to that, and snap away with your smart phone. Your phone will automatically compensate for white balance, but you can compensate for that in post. Depending on your latitude and the amount of clouds outside, the illuminant will be somewhere between D50 and D65, and this illumination can be color corrected in Photoshop or some other. (If I'm speaking Greek, please ask for explanations of the terms.)

Scott
__________________
1917 No. 1A Autographic Kodak Junior
1940 Kodak 35 Rangefinder
1955 Leica M3
1969 Canon New Canonet QL17-L
1976 Konica Autoreflex T3n
1977 Canon 110ED 20
1979 Minox 35 GL
1979 Olympus XA
1980 Pentax Auto 110
1987 Polaroid Spectra
1996 Canon EOS Elan IIe

Last edited by skucera : 10-09-2018 at 19:54. Reason: Punctuation....
  Reply With Quote

Old 10-11-2018   #10
bulevardi
Registered User
 
bulevardi is offline
Join Date: Oct 2011
Location: Brussels
Posts: 145
Quote:
Originally Posted by Scapevision View Post
you can use the screen as long as you elevate the negatives away from it. This way the pixels get out of focus and you won't notice.
Try capturing the pixels if they have good bokeh
__________________
http://users.telenet.be/bulevardi/ << 【insta~flickr】
  Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -8. The time now is 18:52.


vBulletin skin developed by: eXtremepixels
Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.

All content on this site is Copyright Protected and owned by its respective owner. You may link to content on this site but you may not reproduce any of it in whole or part without written consent from its owner.