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Crop or resize? What happens when you pick a lower pixel count setting
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Crop
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To Crop or Not to Crop? That is the question...
by Brenda Tharp
author of Creative Nature & Outdoor Photography
Why is cropping frowned upon by some, and used heavily by others?

Crop bad if you want to keep wide angle from chosen lens,
Crop good if you want a bit extra zoom while retaining the arpeture setting of the lens as it would be set to wide.
As you zoom, the DOF changes, therefore, by cropping lens you get some extra zoom while still allowing wider arpeture.

To get this same crop effect, one would have to use an equivalently longer lens on a 35mm film camera.
Nothing changes about the lens; it's simply the amount of the image we use from the back of the lens.

Crop for Impact
Farmington Bay Waterfowl Management Area near Salt Lake City has ideal winter conditions, which often attract hundreds of bald eagles. Every eagle ignored me for several days of freezing temperatures until this eagle made a two minute fly over.

Crop - it's not seedy
Ask a farmer and a photographer what a good crop is, and you'll get two different answers.
One will say "wheat" and the other will ask "how long have you got?"! ...

How to Crop Badly Composed Photos in Photoshop
by Richard Schneider
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A crop body is a digital camera which has a smaller sensor, which only "sees" a portion of the field of view, making it look like you are closer to the subject being photographed.

The basics of the Crop Tool in Photoshop are fairly straightforward. After dragging a rectangle over your image, you press enter and the image is cropped as you specified. Resolution doesn't change; the dimensions of your image just get smaller and whatever no longer fits is gone.

Just remember the crop factor in your lens buying adventure. A wide-angle lens will behave like a normal lens when used on a camera with crop factor.
Fortunately, the lens people have already reacted and extended their portfolio towards the ultra wide spectrum.

What if you don't crop? Well, you have different views, but you can still compare DOF I guess. The focal length of the lens is the same in each case, so the ratio of the DOFs is just the ratio of the circle of confusion values, 18.45 microns for the Canon APS-C crop sensor camera, 29.

Quick Fix: A New Crop Brings New Life To a Photo
Crop and tweak color to emphasize a subject
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6 (Canon), 1.5 (Nikon, Fuji, Sony, etc.), 1.3 (Canon). (1.3 crop sensors are also sometimes called APS-H.) Most manufacturers not only produce cameras with these cropped sensors, but also offer DSLR cameras with full frame sensors.

Picture This: Sakar International's New Edit On Demand Technology Lets Users Edit, Crop, Caption Photos Inside Camera
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Crop in Camera
We all know that your images can be cropped in software after capture but try and crop in camera if you can. In other words, use longer lenses or take a more considered approach when framing.

CROP FACTOR & FOCAL LENGTH MULTIPLIER
The crop factor is the sensor's diagonal size compared to a full-frame 35 mm sensor. It is called this because when using a 35 mm lens, such a sensor effectively crops out this much of the image at its exterior (due to its limited size).

Crop
We're going to start by cropping the photo so that it has a horizontal orientation.

Crop the image to the desired aspect ratio. Programs such as Photoshop let you crop or select areas of an image using any aspect ratio that you specify. To do it manually you:
1. Determine the aspect ratio you want to use.
2. Determine how high the image needs to be in pixels.

Crop Factor - A digital SLR sensor is smaller than a frame of 35mm film, so only a portion of the image that passes through the lens is captured by the sensor.

Crop. To use only a part of a photographic image by cutting out the portion not wanted.
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Daylight. Sunlight that is either direct, as on a clear day, or diffused through clouds on an overcast day.

Crop Factor and 35mm Equivalent Focal Length Chart

Related Topics
The Camera Lens ...

CROP FACTOR - A number used to multiply a lens's actual focal length to express how much of an apparent increase you can expect in the effective focal length of any traditional 35mm SLR lens you use on a dSLR camera.

Crop
In computer graphics, to cut off the sides of an image to make it the proper size or to remove unwanted parts. Most graphics applications allow you to crop images with a clip feature.

Crop Factor ( or Lens Crop Factor): Digital cameras typically have sensors of size less than “full-frame' (24 X 36 mm). As a result, the image circle formed by the lens falls on a receiving device with a surface area of less than 864 square millimetres.

Crop. To trim an image or page by adjusting its boundaries.
Cropping. Cutting out unwanted (edge) parts of a picture, typically at the printing or mounting stage.printer or monitor when compared with the original image.

Crop-sensors advantages
- Generally considered better for macro, especially for super-macro
- Approximately 60% more depth of field than a full-frame sensor, given an equivalent field of view
- Able to use the flexible Tokina 10-17mm fisheye lens to its full benefit ...

Crop (cropping)
To trim the edges of an image, often to improve the composition. Cropping can be done by moving the camera position while viewing a scene, by adjusting the enlarger or easel during printing or by trimming the finished print.

Crop your photograph. You probably have a lot of unnecessary empty areas in your photo (and probably some of the background behind the white paper, too).

3 Crop And Rotate. I'm a strong believer in cropping out problems early on. Junk often shows up along the image edges, for example, and it's worth removing that junk and fixing crooked horizons before moving on.

5. Crop in the right places. When taking pictures of people, the bottom of the frame should be across the shoulders, hips, middle thigh or middle calf. Making people look like a head only or an amputee is not flattering.

50% crop
In 3D mode you get the same limited exposure controls as before, but the camera will only allow you to pan left-right (or vice versa). The feature essentially creates a stereo pair of panoramic JPEGs which can be played back on Sony's 3D Bravia TVs.

DO I CROP OR USE A TELECONVERTER?
Cropping into an image gives the same effect as using a longer lens. To check whether this is a practical option we did a test using a Canon EOS 5D, with a 100-400mm lens set to 300mm and the 1.

100% crop from 40M High Res Shot
Another solution for the 40M mode is to avoid any areas with motion in them, so here I shot from the same position as the image above, but switched to the Olympus 75mm f1.8 lens. This is a very sharp lens and here I've closed it to f4 for an optimal result.

Auto-crop output
Use this option for automatically trimming the output image to avoid artifacts on the edges.
^ Index :: ^ How to Use
Viewing the pictures ...

Don't crop just yet!
If you recall from earlier on, chromatic aberration is more prevalent on corners. Photoshop's algorithm takes this into account so make sure you are editing the image in its original aspect ratio or else you'll get weird results in some areas of the image.

Step 1: Crop Out Distractions
Have you ever looked around you and been disappointed about your subject's location? Maybe it's a messy home interior or an unremarkable backyard. A location might appear boring at first, but you can improve it by thinking about what your camera "sees".

Step 3: Crop an image that has already been resized and placed
Over in the Layers window, click right on the layer corresponding to the photo that you wish to crop. Select "Edit Content" from the menu of choices.

Crop and adjust saturation on the image to the left and you get this new image here.
TIP: Although this image might look a little over-saturated on the screen, I suggest over-saturating panoramas you are going to print. They'll have more punch on paper.

Crop both photos to the same size
Adjust white balance on both photos if needed
Previous ...

Crop
To delete part of an image or its border for a more pleasing effect through the elimination of distracting or unwanted details.
Dock
Some cameras use device or cradle for recharging the camera's battery and for connecting to a computer or printer.

Crop Factor
(also:
Focal Length Multiplier
35mm Equivalent)
Not to be confused with "Crop" of a picture, these terms are exclusively used in the context of relating focal length to field of view (FOV), using a full-frame sensor size (24x36mm) as a reference.

Crop factor
Image sensor format
References[edit]
^ a b What is "35 mm equivalent focal length?" The Panorama Factory, 2004.
^ Atkins, Bob. "Digital Depth of Field". Retrieved 23 May 2012.
^ Vincent Bockaert, Sensor sizes. DPreview.com.

Crop on the top Navigation Bar.
Eyedropper Tool (I)
This tool is used to select colors from your image. When this tool is active click on a color you would like to set as your foreground. Holding [Alt] key while clicking will change the background color.

Crop Frame
I had understood that you had to calculate this with the crop factor included so the 50mm lens would need a shutter speed of 1/80 or higher. Your article seems to contradict this. Which is correct?
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crop marks lines printed with an image to show the dimensions to which finished pages should be trimmed
fill the color or tint applied to the interior of a character form
disk a magnetic medium on which the computer stores information ...

A crop for effect (I wanted to emphasize the diagonals and get rid of some of the overblown sky). I also edited to bring more color out in the skintones.

Crop in tight on the animals to again reduce the chance of seeing anything man made in the background. Fill the frame with your subject, even to the point of cropping part of the animal out of the shot.

To crop the image, the Rectangular Marquee tool is chosen from the Tools palette (see Figure 14). Once the Rectangular Marquee tool is selected, the Rectangular Marquee Tool options will appear in the Options bar (see Figure 15).

to crop it
to trim the photo to the required size and composition (usually electronically)
to capture it ...

100% Crop of the above photo
Conclusion:
Again, this is a really nice compact digital camera. It captured the images I asked of it with sharp accurate exposure and has modes that allow me to do most anything I would need.

Don't crop any of your first ten images tightly. Leave space around the main subject. Don't submit square or odd size images. Again this comes down to the markers preference so best not to do it initially.

Creative Crop/Getty Images
The ISO number is a measure of light sensitivity. It originally referred to the sensitivity of a given type of film, and the standards for measuring were determined by the International Standards Organization (ISO), which is where the name comes from.

Image 2: Crop from image 1
Image 3: Shot taken with 100 mm focal length ...

FX in DX Crop Mode
35mm Film
VR (Vibration Reduction) Image Stabilization ...

One could crop a 16:9, 4:3 or 3:2 image into a square, but cropping isn't the same as the experience of seeing square and composing a square image directly in the camera. Square image files are smaller, but the "pixels-per-inch" resolution is the same, even though the captured image size is smaller.

How to Crop a Digital Photo Using Adobe Photoshop
2. How to Convert Your Photos to Black and White in Photoshop CS3
3. How to Remove Red Eye Using Adobe Photoshop CS3
4. How to Remove Blemishes using Photoshop CS3 & CS4
5. How to Make a Web Photo Gallery Using Photoshop CS3 & CS4
6.

The bottom crop is a shadow performance test suggested by Paul Schilliger. It examines how much detail the scanner is able to pull out of deep shadow, and how much noise is in there. To see what was happening in the shadows, I used Photoshop to apply the steep curve that you see on the right.

100-percent crop, Tokina 10mm
100-percent crop, Nikkor 10.5mm
200-percent crop
Q: I hear lots of good things about the Tokina 10-17mm fisheye zoom. However, I have a Nikon D200, and I'm afraid to buy anything other than Nikon lenses for my camera. Do you have any experience with this lens?

Shoot wide and crop later. With the size of sensors today, we can easily afford to crop into our photos so shoot as wide as you can. Remember that it's better to crop than to have that perfect shot with a body part out of the frame. Doh! ...

Zoom in and Crop. Just by zooming in and cropping the image in-camera you can change a photo from unimpressive to very attractive. Says Allison, “Photo 6, of Daniel & Meryl, is a snapshot of a beautiful couple, but a distracting background and too much space make it an unflattering pose.

10. Creatively crop. Whether the camera is tilted funny or your cropped it that way, a unique cropping of an image draws the viewer in.
11. Don't be happy. You don't have to share a smile - show the anger or tears.

Do you need to crop, resize, edit or rotate your photographs before sharing them?
For example, the digital photograph(s) you submit must be no larger than 800x600 pixels.

Crop your photos - working with digital photos lets you zoom in and print a particular part of a photo. If, for example, you took a picture of your kid, but didn’t see the unsightly garbage cans in the background, you can crop out the garbage cans and not have them in the photo.

Full Frame vs Crop Sensor
There is a lot of confusion about the nature of cameras with the APS-C sensor size vs. cameras with 35mm sensor size. Often the talk runs around image quality and I see that there is a general assumption that a DSLR with a 35mm sensor is always better.

Pros don't crop their images

Cropping is a very common practice, especially when taking action shots at sporting events such as a rugby match or F1 race. It's less common when there is plenty of time to set up the lighting and perspective, such as portrait or product photography in a studio.

Rotate and Crop
The next thing you should do to clean up photos is to rotate and crop your image. Often, some of our pictures are in the wrong orientation. You should use a Rotate Tool in your photo editing program to get it right.

Maximising your crop
Restore old bushes by cutting up to half the branches down to the ground. Aim to leave six to eight well-spaced, upright branches.

} , { "Title" : "Focal Length Multiplier" ,"GlossaryIcon" : "" ,"HideInGlossary" : "" ,"Summary" : "For a D-SLR that uses an imaging sensor smaller than full frame (35mm film frame), the ratio of the diagonal of the camera's imaging sensor in comparison to the diagonal of a 35mm frame is the crop ...

(NMA) CROP-To trim or cut off parts of the picture by printing methods to eliminate superfluous portions, and thus improve the composition. CROP MARKS-Markings placed on original copy, indicating where part of the top, bottom, or sides of the picture are to be omitted.

crop - to reduce a picture to a smaller area, cutting off the edges - usually to leave a better composition.
cross processing - developing a film using a process intended for a different kind of film - i.e.

You can crop the image to fit the frame ...
Panoramic Formats: Panoramic formats have become very popular in the past few years. Many 35mm cameras now include a panoramic inserts as well as some range finder and medium format cameras.

Focal Length Multiplier and Crop Factor
Whether a camera lens is seen as wide-angle or tele is dependent on its Angle of View (AoV); for a particular image size AoV is dependent on focal length.

Use to crop during printing. edge number Film has a clear unexposed strip running the length of both edges.This strip, called the rebate, is pre-exposed with edge numbers to identify each frame as well as a product code to identify the film make and type.

A high MegaPixel count comes in handy when you want to crop pictures, and when you want to make enlargements. For uncropped 4x6 prints, 2 megapixels are usually enough, but for 5x7s and 8x6s, you kinda need to go up to 3 if you want a sharp picture.

Smaller sensor also has a "crop factor multiplier" because it has a smaller surface than a 35mm camera film, it takes a small portion of the projected image (crops the image) and produces a normal frame, hence practically is multiplying the focal length covrage, for example Nikon DSLR has a X1.

3x 'crop factor' provided a good compromise between effective magnification and image quality. Its replacement, the 1D Mk III, was an improvement in most respects, but was plagued by autofocus problems.

In DSLR cameras it is important to know about the crop factor. Since the sensor in the cameras is smaller than a 35 mm film frame you need to consider the crop factor. In cameras using the APS-C sensor this factor is 1.5x or 1.6x.

A subject is framed if the photographer is able to include and crop surrounding objects so that the resulting lines and shapes lead to the subject. For example, you could take a photograph through a wooden fence overlooking a horse in a farmer's field.

In CS3 I enjoyed using the crop tool to slice although I'm sure Adobe intended the slice tool to be used. In CS5 the crop tool has become the Artboard tool which takes a bit to get used to.

Photo pro's will then use Photoshop or other image editing software to crop the image more tightly into the bolt. If the bolt is primarily vertical, cropping will follow this orientation.

Granted, it is easy enough to crop away unwanted areas after the fact and thereby make them look like they were well composed in the first place, but unless you have a high-megapixel camera and have remembered to shoot at high resolution, ...

On first glance the image looks pretty sharp (this is a small crop of the original shown here), however the fall of the water drops are recorded as synchronised squiggles which indicate the camera was vibrating while the shot was taken even though the camera was on a large professional tripod! ...

We've already talked about the low noise & wide-angle capability of the D3, but it can also shoot in DX mode (with or without a DX lens) to provide that sometimes helpful "crop factor". But what is the image quality like?

With the quality of the current crop of new digital cameras, exploring infrared photography is finally a possibility for those of us who don't want to deal with the hassles of traditional infrared photography.

The dynamic range of the current crop of DigiCams is similar to that of color transparency film. The LCD preview (when you can see it) does let you get the best possible exposure given this limitation, but it is impossible to capture the wide tonal range possible with black and white negative film.

If you are a novice with your computer, you may find it easier and more convenient to simply use your camera's digital zoom feature rather than to crop and resize the image on your PC.

Remember to use a tripod for keeping your photographs level, otherwise you will have to crop some off the top and some off the bottom of the pictures in you panorama and you will wind up with a narrow strip. Keep the tripod itself level so the photographs are all horizontal and level.

Unless you're likely to crop extensively or make prints larger than 8x12, you should find shooting at 3 MP more than satisfactory. That's the setting I use on my 5 MP and 8 MP cameras. Unless you know you won't want anything larger than 4x6, there's really no reason to use a lower setting than 3 MP.

You should zoom-out and then crop your image to get the desired section of your photo.
Focus your photos
Most cameras will automatically try to focus the item you are photographing.

Typically, image editing programs are used to sharpen and crop images and fix over and underexposed shots by adjusting their tonal range levels.

Common mistakes made while taking family pictures is to crop in at the bottom of their legs. This eliminates the foreground completely. Take a step back, include a portion of the ground (or leaves in this case) and the result is more pleasing to the eye.
Wrapping scenery around the subject ...

different monitors can crop the image to less than full frame. There is a safe area in the frame inside which the image is unlikely to be cropped
CPU
Central Processing Unite, used to compute exposure ...

Automatic flash exposure systems make using flash easier than ever before, but there are some problems that crop-up on a regular basis.

Also know as crop factor. It affects the range of the lens by effectively "magnifying" the image making zoom lenses seem to have a greater range and reducing the angle of view on wide angle lenses. Most modern DSLR have a 1.6 crop factor.

After sharpening, you may want to crop out any extra unfinished edges before saving. That's it! You now have a nearly noise free, super high resolution photo!
Here's our resulting 94 megapixel image again. Download the full resolution file here (14MB ZIP)
Conclusion ...

Once captured, you may want to manipulate the image, to increase or decrease sharpness, contrast, brightness, colour saturation etc and perhaps to crop the image to improve its composition.

There are two possible issues here. First, labs tend to crop off a small amount on all sides when making enlargements. That's how the printing machines work. The amount trimmed off is fairly minimal, however.

Filling the frame is especially important when it comes to the square format. This format allows for a tight crop that looks well with most subjects.
Bee owner by Anton Novoselov ...

See also: See also: What is the meaning of Image, Photograph, Camera, Light, Photography?

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