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Posts Tagged ‘General Photography’

Cropping – A Starter’s Guide

Wednesday, January 28th, 2009

Digital cameras are great but many don’t have very impressive optical zoom capabilities. As a result, our subject can be relatively small in the print area. Time to crop out all of that extra stuff and fill the frame with our subject. Just beware that you are deleting pixels, never to see them again and this can have a serious effect on your ability to print a decent looking image.

Our general rule of thumb here at the lab is to have at least 1200×1800 pixels for a 4×6. There’s some wiggle room here to have fewer pixels and get a good print, but try not to overdo it. And a word of caution – everything looks good on your screen, you can’t always predict what the print will look like from your computer screen.

 

Original image - 2560x1712 pixels

Original image - 2560x1712 pixels

Here’s my other nephew, playing with some toy trucks. The original pixel dimensions are 2560×1712.

 

 

 

 

cropped to 948x1422 pixels

cropped to 948x1422 pixels

Next, I’ve cropped it to be a 4×6 vertical, taking out the tow trucks entirely. The pixel dimensions are now 948×1422. It’s smaller than our recommended size and there is a difference in the picture quality but in this case, most customers will probably be happy with the results.

 

 

 

 

Original image - 1280x1920 pixels

Original image - 1280x1920 pixels

Cropped to 471x676 pixels

Cropped to 471x676 pixels

In the second example, I’ve taken an image that was 1280×1920 (that’s just over our recommended dimension) and cropped to the horse and rider in the lower left corner. Now the image is just 451×676 and its printed quality is noticeably reduced. You can tell the focus isn’t perfectly sharp and edges that should be smooth are now more jagged. On the screen, these imperfections may not look too bad, but the print will look “digital” (and not in a good way). I wouldn’t recommend cropping this much to make a 4×6 print. You’d be better off getting closer to your subject before taking the picture.

 

How do you tell what your pixel dimensions are? On a Windows PC, change your folder view to “Details.”

 

Change View to "Details"

Change View to "Details"

If the dimensions aren’t listed, right-click along the top where it says “Name,” “Type,” etc. and scroll down to “More…” if necessary to find “Dimensions.”

 

Add "Dimensions" to your Details View

If Dimensions are not visible, right-click on title bar and scroll down to More...

Click on "Dimensions" to add them to your Detail View

Click on "Dimensions" to add them to your Detail View

 

Using Picasa to crop your photos is quick and easy, but impossible to monitor what your pixel dimensions will be until you’re done. You can check the pixel dimensions towards the bottom of the screen after you’ve cropped the image.

 

Cropping in Picasa

Cropping in Picasa

After you crop, the dimensions show up below the image

After you crop, the dimensions show up below the image - 950x1424

 

Adobe’s Photoshop Elements makes it possible to put in the pixel dimensions you want but if you’re cropping out large portions of your image, the computer will make its own adjustments, and sometimes not for the better. Here, Elements has changed the resolution to less than half of what our printer requires.

 

Cropping in Photoshop Elements - Choose your width & height

Cropping in Photoshop Elements - Choose your width & height

The resolution is half what we need to make a decent 4x6 print

The resolution is half what we need to make a decent 4x6 print

Here’s what to remember: the more pixels you start off with, the more you can afford to crop. For a 4×6 print, try to keep those dimensions to 1200×1800 or higher.

Happy Shooting!

 

Printing and Proportions – The Missing Manual

Saturday, January 24th, 2009

When I was learning about photography, two things no one ever really talked about were proportions and cropping. No one mentioned that my images would be cropped every time I ordered enlargements. What do you mean I won’t get the whole image that I see on this 4×6 print? It wasn’t until I was ordering enlargements through a mail-order lab that there were instructions to draw on the negative sleeve how you would like the image cropped that it started to sink in.

Why all the confusion and sizes that don’t match? Blame the changing industry, I suppose. Ansel Adams shot with 4×5 and 8×10 cameras. For him, making prints or enlargements of 8×10, 16×20, and 24×30 all make sense. Each size is proportional to the next so nothing gets cropped.

Along came the 35mm film cameras and suddenly the full frame is 4×6 (a proportion of 3:2). Doubling that you get 8×12 instead of 8×10 – now you’ve lost 2 inches of your image. And good luck finding a ready-made mat and frame in a store designed to fit an 8×12 print. If you frame your pictures very tightly (from edge to edge filled with your subject – think group photo), this quickly becomes a headache.

And now we have digital cameras. When they first arrived on the market, their full frame was 4×5.3, designed to fill your computer screen nicely (that’s a proportion of 4:3) but there was no connection with 35mm sizes that we all know and love. As the technology evolved, most manufacturers realized this problem and they added a setting to take pictures with the same proportion as the 35mm film. As a result, though, your megapixels go down. Don’t fret, these days there are plenty of megapixels to make good enlargements.

Here are some visual examples so you can see what it all means as you get prints and enlargements made of your favorite images.

Here’s my nephew, playing with some new toys this holiday season. I took this with a point-and-shoot digital set at 3:2 so all my prints would be 4×6 without cropping. When I want to get them printed at different sizes, the red areas are the parts I will lose. A good lab should adjust where the red areas are so you don’t lose too much from the subject (see the 5×7 examples).

35mm (3:2) proportions

Original image: 35mm (3:2) proportions

Cropped to 3.5x5. Areas in red will not be printed

Cropped to 3.5x5. Areas in red will not be printed

Cropped to 5x7. Areas in red will not be printed

Cropped to 5x7. Areas in red will not be printed

Cropped to 5x7, version 2. Now the area that will not print is all at the bottom.

Cropped to 5x7, version 2. Now the area that will not print is all at the bottom.

Cropped to 8x10. Areas in red will not be printed.

Cropped to 8x10. Areas in red will not be printed.

 

 

 

 

 

 

 

 

 

What if I had shot at the 4:3 digital proportion? Then everything changes. Now you need to know if that was your camera’s setting. (All right, you don’t NEED to know…but it would be better if you did.) You could have your files all printed as 4×6 like you’re used to but then you will lose part of your image. Often this isn’t such a problem – unless you’ve filled the frame with your subject. Now my nephew has lost the top of his head and most of his toy truck. See the examples below.

Original photo with digital proportions: 4x5.3 (4:3)

Original photo with digital proportions: 4x5.3 (4:3)

Digital 4x5.3 printed as 4x6. Areas in red will not be printed

Digital 4x5.3 printed as 4x6. Areas in red will not be printed

Digital 4x5.3 printed as 5x7. Areas in red will not be printed

Digital 4x5.3 printed as 5x7. Areas in red will not be printed

Digital 4x5.3 printed as 8x10. Areas in red will not be printed

Digital 4x5.3 printed as 8x10. Areas in red will not be printed

 

 

 

 

 

 

A custom lab can print these as 4×5.3 and save his head and toy. But if you were planning on framing that masterpiece, forget it – there are no 4×5.3 frames out there unless you go with a digital frame. And even those are sometimes widescreen (16:9) rather than the 4:3 proportion. Egad! What’s a person to do?

You could change the setting in your camera if that model allows it. Look for a pixel setting within a menu and anything that indicates the 3:2 proportion. If it’s a point-and-shoot digital, it’ll likely be the second one listed as the first one will be the largest, 4:3 proportion. If you’ll be putting your prints in an album, I’d recommend getting them printed as 4×5.3 and get the whole image. If the print needs to go in a frame, go with the traditional 4×6, just be aware that if your framing was tight, you may not like the results.

Finally, what to do if you want an enlargement but don’t want the image cropped. Then you’ll have some white edges on two sides. If it’s a 4×5.3 digital image and you’re ordering a 5×7, that white will be on the 7” side. If it’s a 4×6 image, the white will be on the 5” side. Whatever decision you make, be sure to tell the lab. We can’t guess what you’re thinking!

For the math-challenged, here’s what you need to know to keep the full frame of your image as you make enlargements:

If your original size is 4×6, the full frame sizes are: 8×12, 12×18, 16×24, 20×30 and 24×36.

If your original size is 4×5.3, the full frame sizes are: 8×10.6, 12×15.9, 16×21.2, 20×26.5 and 24×31.8.

Good luck finding a frame for any of these goofy sizes. You’re better off cropping to these more common sizes: 8×10, 16×20, 20×24, and 24×30.

Another set of circumstances arise when scanning an old photo. Now the print size could be square! Turning a square image into a 4×6 will require cropping or white edges. Again, think of where the print is heading – album or frame – to decide what to do. If it’s going in an album, I’d suggest keeping the image the same proportion when it’s square so there’s no cropping. But if it’s going into a frame, print it as a common size. Again, you could opt for the white borders on two sides so there’s no cropping. See the examples below.

Original image is almost square

Original image is almost square

Cropped to a horizontal 4x6 image. Area in red will not print

Cropped to a horizontal 4x6 image. Area in red will not print

Cropped to a vertical 4x6. Area in red will not print

Cropped to a vertical 4x6. Area in red will not print

Printed on a 5x7 paper. No areas were cropped but there is white on the 2 sides

Printed on a 5x7 paper. No areas were cropped but there is white on the 2 sides


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