ShiftN - Converging lines in photographs, particularly of buildings, forests and so on, can often detract from the desired effect. Architectural elements in photographs often have diagonal lines, but the mind thinks of buildings as having vertical and horizontal lines. Converging lines are caused by the film-plane being angled relative to the object of the photo, and that effect can be avoided optically by the use of either a shift lens (quite expensive) or the use of a medium or large-format view camera having swing features. With a shift lens, the lens itself is shifted perpendicularly to the z-axis, so that the film level can remain parallel to the subject. Shift lenses are mechanically and optically more complex than standard lenses, which is why they are comparatively expensive. Often, one is shooting with a "point and shoot" camera, where the option of changing lenses does not exist. The advent of digital photography or scanning existing photos from prints opens up new possibilities for manipulating the picture. Here is where ShiftN shows its strength.
ShiftN permits correction of converging lines; a majority of the correction work is taken over automatically by the program. Using the "automatic correction" item in the menu is in most cases sufficient to produce a satisfying result. Both the effects of converging lines and poor camera angle are corrected automatically.
The process in ShiftN is to search the image first for straight lines and edges, and to consider those which are sufficiently vertical to be likely architectural elements. On the basis of these straight line segments the program runs an optimization process that attempts to determine perspective, correcting the image so the lines are made parallel to each other.
List of Changes:
Version 3.6 from 2010-12-12Show all changes
Version 3.5 from 2009-05-01
Command line parameters
Version 3.4.1 from 2009-02-13
Version 3.4 from 2008-10-25
Spanish version added
Version 3.3 from 2008-05-08
Latest User Reviews:
Tappers 2011-02-28 03:55:12 #
Great program. Just what I was looking for. Really fixes those shots of churches, monuments, etc which you were too close to because of nearby buildings and had to use wide angle. Very pleased with the results!
Ruediger Hernandez 2011-02-01 08:52:18 #
Easy to use! Good interface! Recommend!
Madeleine Theron 2011-01-27 12:43:24 #
Quite efficient and easy to use.
Rogert5595 2010-12-06 12:50:35 #
Absolutly brilliant - though it could do with a short tutorial about how to use the manual adjuster
Geoffpyne 2010-11-22 09:11:28 #
An easy-to-use tool which does precisely what it claims. With wide angle lenses I find it is usually better to correct for barrel distortion (if necessary) before invoking Shift-N. I think this is because it provides some straighter lines for Shift-N to get a grip on.
Peterjonkergouw 2010-07-25 05:52:37 #
I use it for a long time and it works fine.
MalyJiri 2010-07-23 05:48:14 #
Davidmgeer 2010-04-24 07:24:21 #
Love it very easy to use and produces excellent results.
Eminence Grise999 2010-04-14 14:04:34 #
I was looking for a piece of software that would let me correct vertical perspectives for pictures of buildings. ShiftN is amazingly easy to use and does an excellent job.
Mail 2010-03-14 13:30:48 #
Function is useful at first glance, but would be improved if there was a button to loss-free turn the image prior to correction. Otherwise these have to be turned by hand in another programme.
Clebell 2010-03-01 23:31:47 #
I tried out shftn 3.5.1 now and I like it very much. It really does what it is advertised to do. It even has a batch function which could be very usefull. Great program would and did recomend it to my friends.
Johnridgway42 2010-02-19 08:30:56 #
It is excellent, beautifully simple to use and produces great results.
Bertus 2009-10-12 08:52:59 #
This program is really just one click and it does all the work. Incredible. Thank you for letting me use this.
Danchen12118 2009-06-24 18:07:32 #
ShiftN 3.5.1 is a small, easy to use, and very handy tool to fix some minor lens distortion. Few click with the mouse, the image looks much more decent.
Alan Wylde 2009-06-11 13:31:42 #
I am very impressed with the software. In all trials to date it has produced the result I was seeking.
Rogdias 2009-06-07 11:06:48 #
I've found this software to be very useful and accurate. The automatic correcting feature saves a lot of work, producing excelent results, and can be changed manually afterwards.
Carlton 2009-05-09 19:48:26 #
I have used the previous version of ShiftN and look foorward to the upgrade. I find ease of use to be unsurpassed and results to be outstanding. My travel photography catalog contains many many images of buildings in downtown areas where shooting space is often tight. ShiftN lets me get the proper perspective on all of this.
Andres 2009-04-27 08:46:47 #
so far, i have tried shift-n on a few pictures and noticed that it does a super job on some and hardly touches others - i am attempting to find out why that is - my pictures are mostly wide angle interior shots of homes that tend to show considerable distortion. peter
KatMarsh 2009-04-13 21:20:47 #
The software functioned just perfectly. Thank you Thank you, K
Photo 2009-03-25 14:39:54 #
Great little program, much reccomended. It is so easy to use and the results are very good!
Paolo.durandetto 2008-12-21 13:33:04 #
when a mac version?
I try your software and I think is useful, a good alternaitve to ptlens, and works good. I would like to have a mac version of this!
Mross-shifn 2008-12-07 02:19:59 #
Let`s get things straight!
This software is easy to use and very effective at correcting perspective error. It does this completely automatically and at a single click. It even crops the final image to retain as much of the original as possibe. For the tweakers there is a myriad of controls.
Chrisfugiel 2008-11-26 06:54:00 #
I`m looking for some help on ShiftN
Please tell me where I can get some information how to use advanced options in ShiftN.
Glynch 2008-11-19 17:31:24 #
Architectural Perspective Corrector
Amazing! easy to use and makes each photo look correct
Michael 2008-11-16 09:56:37 #
Far better than I`d expected
I take a lot of architectural photographs and have tried one work-around after another to correct for perspective distortion. The best solution no doubt is to buy a lense which compensates for this type of distortion, but such lenses are expensive - above my pay-grade. I downloaded ShiftN without expecting much from it. However, the very first photograph it corrected astonished me, and I continue to be impressed by and grateful for this program. Ideally, I'd like to be able to fine-tune the results a little more than seems possible, but that is a small complaint and does not in any way lessen my enthusiasm for what the program, as it now is, makes possible. I want to say that I am not only impressed by the results but by the front-end simplicity of the program. It takes just a few moments to download and install it, and one learns how to use it in moments. Now, if they could only get Photo-Shop to work this easily!
John_f_yates 2008-10-26 06:40:22 #
I was looking for a simple means of making basic changes to my digital photos at a sensible price
lom 2008-04-15 13:13:41 #
Good amateur / keen semi pro software
Does what it says on the tin - highly recommended download but don't think It's professional standard yet.
james brown 2008-03-03 01:46:58 #
useful and fun too
I mostly shoot architecture try to keep things level and flat from the get-go, however I find this software can sometimes trim images up even better than the controls in Photoshop and it does it automatically! Manual override as well, so the best of both worlds.
beeps 2006-12-26 11:52:28 #
It would be interesting to have this software combined with the sort of control available in PS working together. I'm just becoming interested in architectual photography so it's quite interesting to me.