DeepDesertPhoto

One of the things I did before purchasing Affinity was check the OS requirements and it did say it is compatible with High Sierra. So far I have not had any problems with it other than the lack of JPF support. There have been 2 recent updates for High Sierra. It is now up to 10.13.4 OS. The updates are supposed to improve stability. The only issues I have had with High Sierra so far are iMovie quitting during a video edits. I make sure to send the error report to Apple since iMovie is an Apple product.

That is only partly true as far as Adobe. Adobe could have built CS5 to be compatible with newer Apple OS but they did not because they want users to switch over to Creative Cloud. I will not pay $10 a month to rent the use of a program. I have other programs that were made back when I was using the Lion OS and they installed without any problems on High Sierra OS. All I had to do with them was check for updates. VLC and HandBrake installed and ran fine on High Sierra without updates, which meant their programs were made to operate on many Apple OS. Adobe could have done the same if they wanted to.

It's possible. Have to wait and see if APh adds support in the future. The only reason I used it was because Jpeg2000 had the ability to compress TIFs to half size yet still preserved all their quality through Lossless compression. PNG also has lossless compression, but PNG does not support LAB Color, which is why I went with Jpeg2000. I did not anticipate Adobe not making Photoshop CS5 obsolete.

When I tried to convert using ColorSync I was trying to convert the JPF back into a TIF. ColorSync ended up converting it to RGB 8 bit. Many of my JPFs are in LAB 16 bit color. However, I did not check to see if ColorSync would convert it to another variation of JPEG2000 which could preserve the original color data. I will experiment and see what happens. Worst case scenario is that I will have to wait until Affinity adds JPEG2000 support that includes the variants. It is possible that the JPF variant is owned by Adobe. They can be sticklers when it comes to their patents.

That was actually one of the first things I tried, as shown in a screenshot provided. I tried to use the "Open With" and then selected Affinity in the drop down menu. When selected in this way the program did open but it displayed the "unsupported file" error. As I concluded, the JPF variant is simply not readable with APh.

Here is the smallest JPF I have. It is just under 8 MB and was originally an 8 bit RGB PNG before I compressed it into a JPF using Photoshop CS5. As I mentioned in the original posting the logic board in my old MacBook Pro failed and was unrepairable due to its age. My newer MacBook running on High Sierra is not compatible with CS5 which is why I decided to try Affinity. Let me know if you can do anything with this JPF because all I get is the "Unsupported File Type" error when I try to force Affinity to open it. And I would appreciate it if this image were not distributed beyond this forum because I do have a JPG version for sale through stock photo agencies. AlternativePower-MS.jpf

Still does not work. I'm including 2 screenshots. First screenshot shows the search as you pointed to. As you can see the search will show the JPF files but they will not highlight in order to be opened. In the next screen shot I attempted to change the file extension from JPF to JP2 because it said in the program specs that JP2 is supposed to be readable. But that did not work either. When I attempted to open the same file with the extension renamed to JP2 the program popped up and error that the file I was trying to open is not supported. I did try to convert a JPF into a TIF using two utilities. One is called ColorSync and the other is the Preview App that is built into my Mac. Both programs did convert the JPF into TIF, but they degraded the original quality. The original JPF was in LAB 16 bit color. When converted by the utilities the result was RGB 8 bit. That is an unacceptable loss in color data. I will have to wait and see if Affinity adds JPF support in the future or try to find a program that can convert my old JPFs without losing color depth data.

Mine does not have that ability. The dialog display window is not like what yours shows. Are you using a Mac or a Windows PC? I do know that programs on Macs might not operate identical to those on Windows. The dialog window on mine does not show what yours is showing.

I just tried to open the file and it will not read it. Here is a screenshot of what the dialog window shows me. As you can see the JPF file will not highlight and the open button will not highlight or allow me to click it. I tried renaming the extension to JP2 and all I got was an error stating an unsupported file type. Perhaps it is because my JPF files are in the LAB color mode and not sRGB.

Yes, I saw that in AP's specifications that it will read JP2 and JPK. But mine are JPF, which is another variation of JPEG2000 and AP will not read it. I have several hundred images in JPF.

Sorry for the late reply, I did not get any notification that there had been any replies to my post. Yes, TIF is lossless, but switching from one color format to another, such as from LAB to RGB, might result in some loss of color data. I do not think the utility called ColorSync supports LAB color. I will have to check to make sure. All I know is that AP does not recognize my JPF files.

Hello, I am new here so I suppose the best thing to do is introduce myself and let you all know what my topic is about. To begin, I am a professional landscape and nature photographer. I create HDR composites that I sell through stock agencies and also in local art galleries in Sedona and Jerome AZ. For many years I used Photoshop CS5, and it did what I needed done as far as image manipulation and editing. But a short time ago my old MacBook running Lion OSX failed. The GPU in the logic board burned out and I got the white screen of death. I wanted to get it fixed but the parts were no longer available, which forced me to buy a newer Mac running High Sierra 10.13.3. PS CS5 does not work well on High Sierra. It would not update and it often crashed with errors. Adobe technicians told me that CS5 had never been tested on High Sierra and probably would not work. They advised me to get creative cloud, but I told them I was not going to rent a program. I only buy programs with perpetual license. I found Affinity Photo while searching for CS5 alternatives. I have been testing Affinity for the last couple of days and so far I am impressed. It has many of CS5's capabilities, but the controls will take me some time to get used to. I will probably end up buying the program when the trial period is over. But there is one thing that does need improvement with Affinity. It need support for the JPEG2000 format. I have several hundred images stored in that format and Affinity cannot open them. I use the JPF format to archive my master copies after all editing is finished. I put them in a folder with the original camera raw copy. The reason I used this format is because it supports LAB 16 bit color, just like a TIF, but has lossless compression and has half the size of a TIF. This format is also being used in some video applications. Since Photoshop supports JPEG2000 I think Affinity should consider supporting it as well if your company wants to compete with Adobe on their level. I can use another program called ColorSync to convert my old JPF files back to TIF but that might degrade their quality. So if you are considering adding JPF support to Affinity please let me know. And if you're interested in seeing some of the work I do here is a link to one of my portfolios. The images on this site are being marketed through Getty Images. My HDR lightning composites are my biggest sellers. http://www.roomtheagency.com/profile/555/ Thanks for listening.