motto

Hello, this is my first post so bear with me if I fail to hit the right buttons on this post.

For years I have exported jpegs from Lightroom 4 to a disk or thumb drive with no problems. For the first time, I was thinking of exporting the jpegs to a compact flash via my Lexar card reader, then putting the card in my Canon 50D body to play a slide show on a friends TV. After I exported the images and inserted the card in my camera, it says there are no images on it.

I know the images are on the card because when I open the card on my computer they are all there. Why won't my camera recognize them?

Thanks for the help

motto

CHG_CANON Loc: the Windy City

Your CF card is not a memory stick. You cannot write files onto it and expect a camera to recognize them.

motto

Thanks for the quick reply. I'll have to figure out a different way.

bsprague Loc: Lacey, WA, USA

If your friend's TV is relatively new, it probably has a USB port and can display images. If not, your friends Blu-Ray player probably has a USB port. A lot of Blu-Ray players can display JPEGS copied to a DVD disk too.

Apaflo Loc: Anchorage, Alaska

Actually you can write files to a CF or an SD card just as you do to a thumb drive or memory stick... because for all practical purposes they the same thing! The problem is putting them where the camera looks for them and even more critical is having the exact image format the camera is looking for. Keep in mind that your PC has loads of storage space, RAM and compute power that the camera lacks, so the computer can recognize almost anything while the camera only looks for exactly what it writes, and it makes a few heuristic checks to validate the image and ignores anything that fails the test.

I don' t do Canon, and would have to check to be sure about Nikon. There is a menu option for being able to view images that are not in the current directory that the camera is writing to. Even in the right directory it might not like just any image. It's the right size, the right naming convention and maybe other things or it is ignored.

Try shooting an image and saving it to the computer, and then reformatting the card in the camera, and then try copying that one image back to the card. There is no question that the camera can view it (if it has not been modified) if it is put in the right place. When that works try other images...

EoS_User Loc: Oshawa, Ontario Canada

Photos can be written to a CF card and viewed in camera as Apaflo stated. [B] BUT, BE CAREFUL !! This can alter you cameras photo numbering configuration. If the last photo taken is "Img_5367.JPG" and it has been removed from the card then you reload some images and their number is "Img_3498.JPG" there is a very strong possibility the camera may reset the counter to "Img_3499.JPG" for the next photo taken. I have done this on my 50D.

motto

Thank you everyone. Your info is much appreciated.

motto

WayneT Loc: Paris, TN

Welcome to the forum.

Fotoartist Loc: Detroit, Michigan

Excellent answer.

xptom Loc: Concord, CA

The camera has to recognize the images. First format the card to remove all files. Put card into camera and take one photo. When you take a photo the camera creates a folder to store the image. Now insert the card into your card reader and you will see that a DCIM folder has been created. Look inside that folder and you will see a numbered folder folder. Save your images that you wish to share in that folder and you can now see them on your camera.

bsprague Loc: Lacey, WA, USA

Five years ago I had a Sony and a Panasonic camera that came with software that could put content back on the cameras after processing on a PC. Both cameras were made to function as media players. The Sony, and its software, would set up the camera and if you plugged the camera into a Sony TV, the TV would "see" the camera and you could play the content on the camera with the remote from the TV.

The Panasonic camera was a little different in that it came with it's own remote and would work equally well on all TVs.

Our Blu-Ray players and TVs now have a lot more built into them. Trying to use a Canon, Sony or Panasonic camera as a media player is unnecessary. It is just too easy to use a generic USB device plugged directly into the TV or its attached Blu-Ray player.