Images Being Truncated in Photo Viewers: Only Happens to EOS T1i images on my Win10 Computer

[dunniteowl]

I am having an issue that I currently find myself completely at odds with.  I have two Canon Cameras, the first is my Rebel EOS T2i.  The other is a Rebel EOS T1i.

My Win10 laptop just had a crash recently, which required a Repair of Win10.  At the end of it, there was a list of all sorts of 'removed' files, many of which were MS Updates.  I Can't verify if, before the crash, everything was fine.  I just recently started using the T1i as my 'secondary' camera, meaning I'd use it with lenses I could change quickly while my T2i did the "heavy lifting" with my new Sigma 150-600 lens, so that I didn't have to keep changing the monster lens with smaller lenses while out doing my thing.

Since I just started doing this and Spring is in the air, I've been out taking wildflower photos.  So just yesterday I was loading up images from both cameras and then going through them with the included Windows Photo Viewer.  As I was going through the images, each image would load up (I am using RAW+JPG) it would take a second or three before all the RAW data was loaded.  I see the image get a bit more clear as the data fully loads. (It also doesn't allow me to go to the next image until if fully loads.)

Now, as it loads one of the T1i images, it initially shows me the entire photo.  Then as it starts to load all the RAW data, the images truncate to showing ONLY the top left 1/4 of the photo and it turns a fairly bright pink as well.  I loaded up a free photo viewer from the MS store (to see if it was the Photo Viewer itself) and get exactly the same result.  The initial full images show for about 2-5 seconds before they truncate and turn pinkish.

I then decided to check the images in RawTherapee (which is where I do my Photo Touchup Editing) to see if that would help me sort it out.  RawTherapee cannot load ANY of my T1i images, it didn't even give me what the other two did.  It just said it couldn't load those images, period.

I am pretty sure that previous versions of Windows did just fine with both cameras (I let my wife use the T1i while I used the T2i for photo walks a few years back, but she's not into the photography thing, so I took it over as my secondary as previously described,) but at the time I was using both cameras in JPG only mode.  In September of 2025 I decided to jump in and use RAW on the T2i and while the images take longer and use more memory, they loaded fine as far as that goes.  I literally JUST started using the T1i as my secondary and I think these are the first images on that camera that I set to RAW+JPG.

It just so happened that my Win10 Crash occurred before I really got a chance to look at the T1i's RAW+JPG images.  This is only mildly annoying as I can just go back to using the single camera method (saving me about six pounds of total weight in camera, batteries and two more lenses), though I have found that the two camera method is really starting to 'gel' for me for speed of using different lenses.  The Sigma is a 'monster' that requires me using my tripod and changing out that for smaller lenses is an exercise in patience and dexterity with a single camera setup.

That's the nitty gritty detailed story of what's going on.  I am pretty sure that it is the camera at this point, otherwise I feel that the RawTherapee program would have loaded them, truncated or fine.  Instead it just said, "No. I can't load that image."  While RT can work with JPGs, it takes the .cr2 RAW data when loading up the initial images.  I surmise that this boils down to an issue with the T1i's age and software compatibility as it's now considered a 'legacy' device.

I would be very interested to hear any suggestions that lead to a solution or course of action I could take to sort this out satisfactorily.  I apologize for the length, though I felt a full and as accurate a description of my issue as possible was worth it.

Thanks! dunniteowl

[stevet1]

dunniteowl,

I'd say, if Raw+ is giving you fits, just don't use it. Don't let that get in the way of enjoying your pastime of taking photographs.

You can explore why Raw+ is not working as an intellectual exercise, but don't let it get in your way.

There's an old saying, "Don't let the perfect become the enemy of the good."

Steve Thomas

[dunniteowl · Accepted solution]

Yeah, that's where I'm at, really.  I just set it for RAW.  And, yes, as an intellectual curiosity, I'd explore it, though I promise that those days are more behind than in front of me now.  If I get interested or bored enough, I might see if I can fix it, but before I do that, I'd be more interested in exploring the disassembly of the body so I can get at the view finder lens and either replace it or clean and reinstall it.  It doesn't affect the picture quality, but it does make it a bit 'blurry' all the time, which is no bueno for ensuring that my manual focus images are the sharpest they can be (I have a couple of lenses that only work in manual mode as the USM motor only drives from near to far and not the other way.)  <--- And THAT would be more of an intellectual exercise as well, though much more engaging than fixing my RAW+ so it works.  I love taking stuff apart and putting it back together.  As a kid my dad nearly exploded when he saw his binoculars disassembled on a cloth on the kitchen table.  I got them back together and other than the scratching of the black coating on the screws, you'd never know I did it.  I love optics in general.

dunniteowl

[ebiggs1]

"Some folks have more precious considerations, like being able to afford their homes, vehicles, utilities and such that limit what they can afford on their passions."

Never an insult or rudeness meant just a fact of life. DPP4 is free so it doesn't cost you a penny. It is an app that is as easy or as involved as the user wants. Simple to complex. Great photos are made in post editing not in the camera for the vast majority of the time.

"Just something to consider when offering advice."

The advice is offered to help improve beginners that may not know what top level photography is about. Although Canon has offered DPP4 for a very long time by far the most of Canon camera owners do not know about it. Perhaps these people are satisfied with the images they get as is and that's fine but the bottom line is the best come from tweaks done in post editing. You might be surprised to see what just a simple crop or adjustment to composition in DPP4 can make. Your good photograph is now a great photograph. The decision is yours.

[LeeP]

Thank you for your decorum. It would be wise for all of us to consider how the tone created by our words may be perceived by our readers before hitting the "reply" button and to apologize genuinely whenever what we write is misperceived by others rather than doubling down and reinforcing an unfortunate tone. Being right isn't as important as being cordial first.

[LeeP]

"Great photos are made in post editing not in the camera for the vast majority of the time."

That is an opinion rather than an incontrovertible truth. 

[ebiggs1]

""Great photos are made in post editing not in the camera for the vast majority of the time.""

"That is an opinion rather than an incontrovertible truth."

Even your iPhone has a post editor built in. It does boil down to what you want. What you expect,and are good with. You are right it's not for me to say but it doesn't alter the fact 99% of all the great shots you see and admire have gone through some post editing. Beauty is in the mind of the beholder, however.

[LeeP]

"You are right it's not for me to say but it doesn't alter the fact 99% of all the great shots you see..."

When someone uses a "but" clause, the reality is that the word "but" invalidates what came before it. So what you're really saying in that sentence is that YOU are right.

You have a powerful need to be right 100% of the time even when you are not and you will stridently make sure that any opinion you disagree with is quickly trampled under foot. That doesn't advance the cordiality that this forum seems to value as a core norm.

I would hope that you would be more mindful of how your "help" comes across with an authoritative, opinionated tone as it stomps on conversations and that you would adopt a kinder, more supportive tone with people that allows for multiple perspectives without you feeling the need to "school" people. That "schooling people" mentality--because one thinks they are always right--really has no place tonally in this forum. 

The fact that the individual in the thread felt insulted points to the value we should all uphold, specifically to think how our commentary will be received by other. A person who cares about cordiality would have said: "I am sorry that the way I spoke caused you to feel insulted." 

Decorum must be maintained 100% of the time.

The individual responded with grace an an olive branch to which you doubled down, and that is not an isolated occurrence in your commentary with people.

Being kind must be valued vastly more than being right.

As for your stance that all the great pictures are made in post, if that were lierally true, someone could just hold the shutter release down, whirl the camera around, and achieve an "Ansel Adams" level of iconic excellence in post.

The rest of us know that composition and exposure control make the photograph in the first place.

[dunniteowl]

Again, I am sure you MEANT no insult.  That said, this post is like 'doubling down' on your tone instead of taking a step back and wondering if you might be better off with something like, "I am sorry, I didn't intend any insult.  I will take care to measure my tone in the future."

You do you, though.  I can handle it.  I did mention I wasn't sure that I should even respond.  However, as we are all putatively 'adults' here, I thought perhaps a gentle reminder and some fair criticism of your position was in order.

I see you feel differently and I accept that.  Please, I also do not intend insult, however I DO intend a gentle rebuke of your position.  Take it for what that's worth..

[LeeP]

well said

[ebiggs1]

"Decorum must be maintained 100% of the time."

The facts are the facts. You may not like the message or the messenger but it does not alter the facts.