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File
Management
by Brad Alexander |
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Listen
phello photog enthusiasts, there is NO need to post images
that are like half a meg in file size. If you are going to be posting
photos, it would greatly help us all if you learn how to use any number
of photo editing programs out there. Many cameras even come with their
own basic programs. I am not aware of any photo editing software that
does not allow you to crop, change the image size and allow you to
save at various levels of compression as a jpg.
For me, I like the
file size of 720x480 pixels. A few years ago, I always tried to
get the image at or very close to 100k. Sometimes I had to get the
physical size of the image much smaller than 720x480 to accomplish
this. However, today, high speed is much more available, so 200k
is acceptable. You can achieve this in two ways – image size and/or
compression. By simply saving as a jpg, you are ultimately compressing
the image. However, most programs (if not all) allow you to adjust
the level of compression to help you achieve a smaller file size
without too much degradation to the image. If you can’t get the
image down to a reasonable file size (around 200K) by means of an
acceptable level of compression, then just change the actual size
of the image. For example, a 720 wide image will be a larger file
size than a 640 pixel wide image.
Honestly,
if you want to share the images then great, we all want to see them.
But taking just a couple of extra minutes to prepare your images
for sharing really helps us all. I even have high speed and can
easily notice when there are 10 images to download at half a meg
or more a piece.
Here are some examples:
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540x360
pixels
Compression level= 9
Photoshop CS
129K
Some
programs use a compression level from 10-100, some 1-12. The higher
the level, the larger the file size and less jpg artifacts visible. |
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720x480
pixels
Compression level= 9
Photoshop CS
192K |
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720x480
pixels
Compression level= 12
Photoshop CS
488K (huge jump in file size not
necessary) |
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FHF
thanks Brad Alexander for his contributions!
If you'd like to submit
a photography related tip, please email
it to FieldHerpForum.com. Submissions must be VERY detailed
and image heavy to give a visual aid. Imagery MUST be at or under
800 pixels in width.
Also visit the "FHF
Image Lab" to discuss and share your images!
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