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Deleting images in camera
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Feb 20, 2019 07:49:36   #
rond-photography Loc: Connecticut
 
boberic wrote:
I am just guessing,but it seems to me that the more times that you remove and re-insert the card the more likely damage, corruption, you may cause.


Statistically, that is true. In reality, I have yet to see a card fail. I have about 10 cards, but most of the time I take the one that is in the laptop out, put in the one from the camera, load that card I took from the laptop into my camera, format, and done. Hundreds of times with no issues.

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Feb 20, 2019 07:52:04   #
rond-photography Loc: Connecticut
 
rfoelber wrote:
I have for the first time heard that one should not delete images from the card while it is in the camera. Because it corrupts the card? I have been doing this daily on long trips to weed out bad shots and to avoid being overwhelmed at the end of the trip. Also, when you use Lightroom, you are supposed to download images via Lightroom and Lightroom is not an easy way to deal with a huge number of new images. Anyway, I will download and then reformat the card in the camera, as suggested, if that is truly the right way to go.
I have for the first time heard that one should no... (show quote)


I have heard one thing over and over from pros at seminars: Don't delete in camera. Instead, study those photos and see what you did wrong and how you can make it a better image.

But, as others have pointed out, it does not matter to the camera and card (other than time spent and battery power used) if you delete in camera.

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Feb 20, 2019 07:53:15   #
sodapop Loc: Bel Air, MD
 
rfoelber wrote:
I have for the first time heard that one should not delete images from the card while it is in the camera. Because it corrupts the card? I have been doing this daily on long trips to weed out bad shots and to avoid being overwhelmed at the end of the trip. Also, when you use Lightroom, you are supposed to download images via Lightroom and Lightroom is not an easy way to deal with a huge number of new images. Anyway, I will download and then reformat the card in the camera, as suggested, if that is truly the right way to go.
I have for the first time heard that one should no... (show quote)


as one who takes lots of photos I am Just curious as to what is "not easy to import large numbers of photos into Lightroom" What difficulties do you encounter?

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Feb 20, 2019 07:55:36   #
wishaw
 
I have a canon xti. When I got it originally I would delete some raw images in camera. I would then download using the canon software. I then batch processed to covert to jpg. In camera I had images numbered 1,2,3,4,5. If I deleted 1 and 3. I then batch processed. The images are then numbered 1,2,3. If I wanted the original raw it had a different numbered from the jpg. Do not know how other systems work but with canon you can select any number you want for the first image to convert and it numbers sequentially from there.

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Feb 20, 2019 08:08:31   #
mwsilvers Loc: Central New Jersey
 
rfoelber wrote:
I have for the first time heard that one should not delete images from the card while it is in the camera. Because it corrupts the card? I have been doing this daily on long trips to weed out bad shots and to avoid being overwhelmed at the end of the trip. Also, when you use Lightroom, you are supposed to download images via Lightroom and Lightroom is not an easy way to deal with a huge number of new images. Anyway, I will download and then reformat the card in the camera, as suggested, if that is truly the right way to go.
I have for the first time heard that one should no... (show quote)

While I generally low level format my SD cards in camera, I have also deleted thousands of images in camera over the years without any difficulties.

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Feb 20, 2019 08:16:45   #
mizzee Loc: Boston,Ma
 
When I down load on a trip, I will:
1. Insert the card into my laptop
2. Open the files on the card
3. Drag and drop the files to a predesignated folder on my external hard drive
4. Move them into LR when I’m back home. (This makes for marital bliss when on the road!)
5. Reformat the card in the camera for the next day
My husband and I traveled for 6 weeks and this system worked flawlessly.

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Feb 20, 2019 08:21:46   #
dsmeltz Loc: Philadelphia
 
rfoelber wrote:
<snip> ...when you use Lightroom, you are supposed to download images via Lightroom and Lightroom is not an easy way to deal with a huge number of new images. <snip>


Oddly I use LR precisely because it is easier and more efficient for downloading and organizing large numbers of images. Maybe I (and a bazzilion other LR users) have missed something that you alone know.

Please share your reasoning. We all would like to learn.

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Feb 20, 2019 08:25:02   #
camerapapi Loc: Miami, Fl.
 
Delete in camera all the images that do not please you. Always format before shooting.

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Feb 20, 2019 08:27:29   #
dsmeltz Loc: Philadelphia
 
rfoelber wrote:
Everybody also seems to be using a card reader, which I haven't done for a while. I just insert the card directly into the laptop. That brings up something that someone else felt strongly about - never taking the card out of the camera. He transferred images directly to his laptop. I guess if you are in a dusty situation that may make sense.


That little slot in your laptop where you insert your SD card to be read is called a "card reader". Welcome to the card reader user club.

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Feb 20, 2019 08:37:56   #
gvarner Loc: Central Oregon Coast
 
Formatting in-camera fixes it. Gets the card ready for the next batch. Formatting allows new files to be stored in contiguous sectors instead of scattered around into vacant sectors left by deleted files. The new data ignores old fragmented bits and overwrites them. At least that’s how it works on a hard disk. You might also want to consider leaving about 1/4 headspace on the card, try not to fill it up to the brim.

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Feb 20, 2019 08:45:21   #
byjoe Loc: Stillwater, OK
 
rfoelber wrote:
I have for the first time heard that one should not delete images from the card while it is in the camera. Because it corrupts the card? I have been doing this daily on long trips to weed out bad shots and to avoid being overwhelmed at the end of the trip. Also, when you use Lightroom, you are supposed to download images via Lightroom and Lightroom is not an easy way to deal with a huge number of new images. Anyway, I will download and then reformat the card in the camera, as suggested, if that is truly the right way to go.
I have for the first time heard that one should no... (show quote)


I have discovered that if I delete in camera before downloading I might miss something on the 2” camera display that I would pick out, crop in, and save on the 27” monitor. Unexpected surprises do happen every once in a while.

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Feb 20, 2019 09:10:08   #
nadelewitz Loc: Ithaca NY
 
larryepage wrote:
I'd have to see some convincing evidence to show that deleting images in-camera is a bad practice. The file system on the memory card is for all intents and purposes the same as the file system in our computers, and we know that computers can handle deleting files all day long with no problem. That said, it could be that the camera's file system might have potential problems handling fragmented storage on the card...where files might get split into pieces due to the "holes" in data resulting from deleting files. Or it is possible that when those holes are left after deleting the image files, the camera operating system just doesn't go back and use that space again until the card is reformatted.

I've become pretty picky around how I handle and use my memory cards, but this is not something that I've ever considered a no-no. It's not something that I'm aware has ever created a problem for me or anyone else over the past 13 years or so.

Bottom line...I'd be very interested to see some specific, credible information about the what, why, and how of this proposed danger.
I'd have to see some convincing evidence to show t... (show quote)



Fragmentation is not a consideration/problem with solid state drives, and I wouldn't think it a problem with memory cards either.
With rotating-platter hard drives, fragmentation contributes to slowing-down of file access. Never seen any suggestion that it affects re-use of empty sectors on the drive, though.

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Feb 20, 2019 09:14:35   #
catchlight.. Loc: Wisconsin USA- Halden Norway
 
Exactly...

I will add that you are not really deleting the image, only the file directive. the deletion actually takes place when the card is formatted and written over.

You can actually recover formatted material as well.


Jimmy T wrote:
I concur with CHG_CANON.
Obvious Man would ask, why does Canon, Nikon, etc. put the delete button on the back of the camera if it isn't safe to use?
Thanks,
JimmyT Sends

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Feb 20, 2019 09:17:06   #
PMW603
 
When traveling, I format in camera a 64gb SD card and a 64gb CF card. After shooting all day in Jpeg on the SD and raw on the CF, I download the SD card via flash reader to my iPhone 7 Plus. I then use the jpegs for a quick review, edit for straightening and other composition adjustments and upload to my social media account for my trip journal with notes. The raw files on the CF card stay in camera for the trip and are processed in LR at home on my iMac desktop. I have had one 64gb SD card fail but was lucky I had downloaded the CF card raw files separately to LR after my trip to Trinidad! I always reformat in camera as per my instruction manual from Canon. Thank you for this topic!

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Feb 20, 2019 09:22:09   #
insman1132 Loc: Southwest Florida
 
I can only tell you from personal experience, rf, that I do it all the time. And I am still waiting for my first card to go bad.

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