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Adobe posts Lightroom v4.2 and ACR 7.2 release candidates

By dpreview staff on Aug 28, 2012 at 01:29 GMT

Adobe has announced 'release candidate' versions of Lightroom 4.2 and Adobe Camera Raw 7.2. The latest near-complete versions add support for a series of hotly-anticipated cameras, including the Sony DSC-RX100 and Canon EOS 650D / Rebel T4i. The Lightroom update also corrects a series of bugs present in the current version of the software. As usual, release candidates are considered well tested but not final. Camera Raw 7.2 also adds the option to change the 'as-shot' image crop, if the camera has recorded the whole sensor's data.

Some bugs in Adobe Camera Raw are also addressed in this update, along with additional lens profiles being included. For more details, see the Adobe Lightroom blog.

New Camera Support in the Camera Raw 7.2 Release Candidate

  • Canon EOS 650D / Rebel T4i
  • Canon EOS M
  • Fuji FinePix F800EXR
  • Leaf Credo 40
  • Leaf Credo 60
  • Panasonic DMC-FZ200
  • Panasonic DMC-G5
  • Panasonic DMC-LX7
  • Pentax K-30
  • Sony DSC-RX100

Bugs Corrected in the Lightroom 4.2 Release Candidate

The following bugs that were part the Lightroom 4 releases have been corrected. The team appreciates the very detailed feedback the community has provided on Lightroom 4 and we’re excited to correct a number of issues experienced by our customers. These issues have been FIXED:

  • Folder stacks with virtual copies get unstacked when moving to another folder
  • Stacked photos get hidden in both the Grid view and Filmstrip.  This occurs when photos get unstacked as a result of enabling auto-stacking.
  • Errors encountered when publishing videos to Facebook through the Facebook Publish Service
  • Users may have occurred problems when trying to enter the Web Module from Library.
  • Unable to edit JPEG photos in Photoshop Elements
  • Unable to upload files to Flickr if there is a carriage return in either the Title or Caption fields (Win only).
  • Background graphics that are applied to a Book globally may not appear as expected in a Saved PDF.
  • Certain book covers had spine text positioned in a Horizontal manner, not Vertical.
  • Double byte characters are not being exported to PDF in Books
  • Photos were exported with original GPS coordinates recorded by the camera, not with the GPS coordinates updated in Lightroom.
  • Keyboard shortcuts in the Develop module sometimes do not work when editing an image in Process Version PV2010.
  • Parents and synonyms of “do not export” keywords also do not export.
  • Audio does not play in video files after creating a slideshow containing music (win7 only)
  • Tether support not working for Nikon D4, D800 , and D800E (win only)

Please provide feedback on your experience with the Lightroom 4.1 Release Candidate in our Feedback Portal (link -


Total comments: 52
By Roger_Williams (Sep 6, 2012)

I am using the version of ACR within PS CS5 and wonder if I can install this version of ACR in it, or even if I should. I have updated to the latest version usable with CS5 but I have not purchased ACR itself. But the horror stories with Lightroom make me wonder whether this is too early to upgrade.

By micahmedia (Sep 29, 2012)

ACR is not stand alone software--it's part of Photoshop and some other CS software. Your version of PS is limited to 6.x versions of camera raw. If you want to work with files from a newer camera that your version doesn't support, you either need to upgrade to CS6 or convert the raw files to DNG with Adobe's free DNG converter utility.

By Raffix (Oct 6, 2012)

Updates to ACR even in CS5 will add new camera support, BUT you can't use newer ACR versions like 7.
For those that use LR4 are really getting the shaft when they use both apps as now to get the same raw dev usage when you just need to work on one image and find it easy to open PS/CS% vs a catalog etc...You can't process it the same way you would in LR4
This is just simple mathmatics for Adobe to push to upgrade to CS6, Which is a shaft for those that know Adobe over the years and know CS6 is the "skip" upgrade.

By Raffix (Oct 6, 2012) least for the most part (regards to upgrade).

What should be taking place is for those who have licensed 4.2 should be able to use ACR 7.2 as well. The ACR of CS6 is NOT the selling point to begin with and shouldn't be the Adobe's card to play on people over the years to force the upgrade. Just make desirable and features we will upgrade. But why pull the rug under our feet when you upgrade LR from 1 to 4 WITH support of ACR tandem as it should be. ACR is a Camera Raw developer and the engine UNDER LR, not the other way around. LR has taken the lead in further progress of ACR, and now turning the tables back on the users. Bad move. Well at least this behavior of diloyalty is what keeps other companies alive. I've been a big Adobe fan for decades... rather disappointed.

Comment edited 9 minutes after posting
By goku75 (Sep 4, 2012)

I being used lightroom from the first version and i was happy of work, but with the version 4 i've noted that it's slow in development mode, for example: the color correction is not reactive in real time with the change of tint...
you noticed this? The my computer is macpro 1.1 quadcore 3 ghz with 9 gb ram and the catalogue is in the ssd, the os is lion.
Thank you and sorry for my english.

By micahmedia (Sep 29, 2012)

I've noticed the demo of CS6 runs sluggish on my machine, which is an 8core Windows box at 4ghz with 32gb ram. It's not unusable, but it's a touch slower than CS5 runs. Actually, photoshop runs fine, it's the newer ACR process that's sluggish. And a touch buggy with adjustment brushes too.

I'm glad I demo-ed it first. It's not bug free/optimized yet. I think I'll give it another couple months before I upgrade. Hopefully it'll be working ok by then.

By Dennishh (Aug 31, 2012)

Warning! Do not upgrade or install lightroom 4.2 RC. I decided against my better judgment to try this out on my system that is currently running 4.1. I installed 4.2 RC two a separate drive and was horrified to find out that it took over all my settings for 4.1 and made it totally unusable. Only 4.2 RC would work and it deleted all my user settings and took out all the links to the plug-ins. I tried uninstalling and reverting my PC again this did not work. I reinstalled light room 4.1 and I still do not have any of my old settings. I think Adobe has lost control of their program and have no idea how to fix it.

By Dennishh (Sep 1, 2012)

Managed to revert to 4.1 and find profiles. 4.2 had set save profiles with catalog so I unchecked it and all is OK. It didn't seem to save the settings though.

By bluelemmy (Aug 30, 2012)

>Users may have occurred problems


Nils G
By Nils G (Aug 28, 2012)

I tried to downoad LR4 camera RAW, 7.2. WinZip always comes up wants $30. Is there any other way to unzip the Adobe file? For reference, I use camera raw with my Nikon D90 and my Sony RX100.

By vellocet (Aug 28, 2012)

Heh, WinZip. I remember those days.

All recent versions of Windows include the ability to unzip files natively (I believe since XP?). You can also use free, open source software like 7-Zip ( to do it.

1 upvote
Esmee Farquhar
By Esmee Farquhar (Aug 28, 2012)

If using RAW causes so many problems, why shoot in RAW at all? Isn't that time better spent making photos you really want instead of RAW to JPEG conversion?

poa kichizi
By poa kichizi (Aug 28, 2012)

You should try using raw...

By audijam (Aug 28, 2012)

edt the same JPEG 5 times then you will see why

1 upvote
By nekrosoft13 (Aug 28, 2012)

And how did you come up with this un-educated conclusion?

By JWest (Aug 28, 2012)

Er, what problems would those be? The problem of greater dynamic range? The problem of superior sharpening and noise reduction? The problem of non-destructive editing?

Enlighten us, Esmee. Personally, I shoot RAW to enable me to make the photos I really want. Why do you shoot JPG?

Comment edited 18 seconds after posting
ABM Barry
By ABM Barry (Aug 28, 2012)

I guess you are the sort of person that uses an iPhone and asks: Why would you buy a D4 & superb glass?

In case you haven't worked it out by now, this site is called Digital PHOTOGRAPHY Review. I suggest that you take a good tour of the content. You may even discover RAW.

In closing, manipulating jpegs is like trying to correct Prints; very limited and can only be done with scissors.

Comment edited 1 minute after posting
By graybalanced (Aug 28, 2012)

People do not use raw because it causes problems. They use raw because JPEG causes a lot *more* problems...

...and also because you do not always have time to "make the photo you really want" in camera. When you are doing photography that involves action or fast-changing light conditions, like street or wedding photography, you cannot always stop and get it right in camera without missing the shot. Raw is extremely valuable in those types of photography.

Comment edited 1 minute after posting
1 upvote
By fedala (Sep 4, 2012)

What ?
RAW is the base of Digital Photo Editing.
Working in computer maintenance, I tend to conclude that 80% of the problems found with computers or softwares is found between the keyboard and the chair...

By Echodyne (Aug 28, 2012)

Any indication that the demosaicing algorithm for the X-Pro 1 has been improved with this new release?

By FTW (Aug 28, 2012)

That is all ok, but you need CS6 to use it, it will not work on CS5. I have up to the throat to eternally be forced to buy a new version of PS every time I buy a new camera. I use CS5 and see no major improvement, or at least not what brings me an advantage in CS6. I use the RAW 6.7 and have only problems with it, it leaks memory and every 3 or 4 shots I need to exit the program and restart, it is a pain in the best. So, I planed to buy a Sony RX100, I will then not buy it. I had a big discussion once with Capture One service for that issues. Here it is worse, you need to buy the program at every update of new cameras. And since we buy a few per year, this is unaffordable, specially if one considers Pro One pricing policy.

By Brogan000 (Aug 28, 2012)

Yeah, pretty annoying. One way around that is to use Adobe's free DNG converter tool. You can convert your unsupported RAW files to DNG files (Adobe's standard RAW file, no information is lossed) and then you are free to use your photos with whatever version of Adobe you are using. It just sucks that you have to jump through the hoops though.

1 upvote
Doug Pardee
By Doug Pardee (Aug 28, 2012)

ACR 7 also doesn't work with Photoshop Elements. Presumably there's an Elements 11 coming along next month to deal with that. Yay, more forced upgrades from Adobe!

Comment edited 3 minutes after posting
Peter 13
By Peter 13 (Aug 29, 2012)

Switch to LR. Cheaper, leaner. I am still with CS2 and the latest LR.

mark power
By mark power (Aug 31, 2012)

Another way if you have LR, is to download the trial version of new LR which supports RX-100 RAW, then open and export files as TIFFS if you want them on your hard drive or if you want to process them in a version of PS earlier than 6. As an aside I think we have two warring factions at Adobe. Why deny users of CS5 the ability to use the RAW update ( for RX-100) then allow it with the LR 4.2? I'm happy with CS5 and don't need to spend hundreds of dollars just to see my RX-100 raw files. But then there's LR, much cheaper than PS, does most of the same things and the free? update can read RX-100 raw. It doesn't make any sense, except maybe to Adobe. Incidentally, on a Mac, the new LR does not exist side-by-side with the old LR. The LR 4 becomes LR 4.2 just as it does on Windows. Hey Adobe, how about making things simple: give all users of PS who have paid out many bucks the ability use an updated version of the RAW processor.

1 upvote
By Raffix (Oct 6, 2012)


By D1N0 (Aug 28, 2012)

crashing when using multiple monitors (i don't see it).

1 upvote
By HVenkat (Aug 28, 2012)

The camera raw 7.2 does not work after downloading ? The adobe application manager (which appears to be the only application amongst all the zip file does not open and the text that pops up is that "it is probably damaged" and all this from adobe labs ?

By leecamera (Aug 28, 2012)

Does anyone know if 4.2 will have tethered support for the 5D3. I gather 4.1 doesn't and it would be nice to avoid using any workarounds.

As an aside, although vs 4 was a dog to use I've found 4.1 pretty good for speed. I'm using Snow Leopard on an 8-core but it has been fine with my MBP too. (Granted, if I have lots of brush adjustments it can slow things down but that seemed true with LR3)

By Youdster (Sep 6, 2012)

Sadly not. I tested tethering LR 4.2RC at the weekend with my 5D3, and it still doesn't work. However, I have found this beta to be a bit more responsive all round (including importing images with DNG conversion, which has been painfully slow since 4.0). I guess (and hope) the 5D3 issue may be addressed with the full 4.2 release; I don't think Adobe can afford not to, as Aperture has supported 5D3 tethering for the past month or so.

BTW, if you feel tempted to update to Mountain Lion, the EOS Utility software is not yet compatible (and won't be until October, according to Canon), so think carefully before upgrading yet, as you may lose your only way of tethering for the time being!

By jerrith (Aug 28, 2012)

Great! Can't wait for the final release so I can finally get the most out of my latest toy, the Sony DSC RX-100 :-)

By Najinsky (Aug 28, 2012)

I've seen a small but welcome improvement in performance on maxed out 2010 MacBook Air. RC4.1 Was very slow for loading, adjusting and exporting. All three areas are a bit better, especially exporting. However, I ran RC4.1 on Lion, whereas I've since upgraded to Mountain Lion, so that could be a factor.

Support for the RX100 seems nicely implemented at first glance and the files respond well to clarity and sharpening.

Comment edited 1 minute after posting
By rrr_hhh (Aug 28, 2012)

"Camera Raw 7.2 also adds the option to change the 'as-shot' image crop, if the camera has recorded the whole sensor's data."

This is really a welcome addition ! And a long overdue one. Proprietary software like Olympus Viewer and other software like C One were offering that since a long time and I was really missing it in LR.

Comment edited 39 seconds after posting
1 upvote
Paul De Bra
By Paul De Bra (Aug 28, 2012)

Posted in the m43 forum already... I cannot find this option in ACR 7.2 RC for E-M5 raw files which do contain the whole sensor's data.
There seems to be an issue that it may only be for "newly supported cameras", meaning no Olympus camera (and no Panasonic as they crop raw data unlike Olympus).

By joshnl (Aug 28, 2012)

What's the advantage of this feature?

By JWest (Aug 28, 2012)

@joshnl - it allows you to change your mind about which aspect ratio you chose in-camera, and recover the data from the top/bottom and/or sides which would otherwise have been lost.

By maillardj (Aug 28, 2012)

Do I have to upgrade from 5.5 to use this?

By Martinka (Aug 28, 2012)

Wrong version number in the title
Wrong url in first link (Adobe LR blog)

By tornwald (Aug 28, 2012)

Where is the Sigma dp2M support?

By PeterZed (Aug 28, 2012)

Shame this update doesn't address slow performance issues/memory leaks reported by countless people using the Process Version 2012 (PV2012). You'd think that would be priority #1 for Adobe to fix.

These issues tend to surface if you're doing serious work with lots of selective brush adjustments/gradient filters, etc. No doubt the memory leak is the prime culprit here. :(

By Spectro (Aug 28, 2012)

I was looking for a speed increase, don't care for the other features.

By Nemesis2001 (Aug 28, 2012)

yes, LR4.1 needs to be fixed, it still have performance issues.
It is generally slower than the 3 version and it is very slow for example when using Clarity and Noise Removal functions together.
[EDIT] This particular bug seems to have been fixed as I read here

"Luminance Noise slider is unresponsive when Clarity is greater than 0."


Comment edited 5 minutes after posting
By SchorschB (Aug 28, 2012)

Has anyone heard (or seen while trying this release candidate) if Lightroom now supports the Retina display of the MacBook Pro?

Wye Photography
By Wye Photography (Aug 28, 2012)

I don't think Adobe likes Apple anymore.

By graybalanced (Aug 28, 2012)

I don't think this is an Apple vs Adobe issue.

Is there any non-Apple raw converter that supports the Retina display?

By SchorschB (Aug 29, 2012)

It's not about the raw converter - it is about displaying the images... and not including support for the retina display will push people towards Aperture - since Aperture can display pictures on the display using all pixels.

Carlos Echenique
By Carlos Echenique (Aug 28, 2012)

The DNG Converter for Mac file is corrupted. Only 35mb of the 109mb downloads.

By adrianaho (Sep 4, 2012)

Try downloading again. You probably had a connection issue. It works fine for me. I just downloaded.

By Najinsky (Aug 28, 2012)

Probably should read 4.2 release candidate?

-Courtesy of Najinsky's proof reading services.

By NinpouKobanashi (Aug 28, 2012)

Ya typo

By amazme1 (Aug 28, 2012)

Don't see a fix for the sloppy raw processing of x-pro1 files.

By smatty (Aug 28, 2012)

I doubt that Adobe is going to change anything on their Raw processing for the X-Pro 1. Have they ever come back and change the Raw processing for any camera???

Total comments: 52