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how to crop without losing resolution

Community Beginner ,
Sep 23, 2015

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I took some family photos using my tripod and when I edit and print them the resolution is extremely low. so low the kiosk I printed at warned me.

using Nikon D7000 with 35 mm prime lense. so not a cheap set up.

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how to crop without losing resolution

Community Beginner ,
Sep 23, 2015

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I took some family photos using my tripod and when I edit and print them the resolution is extremely low. so low the kiosk I printed at warned me.

using Nikon D7000 with 35 mm prime lense. so not a cheap set up.

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LEGEND ,
Sep 23, 2015

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You need to provide more details.

How big did you print the photo at?

How many pixels (width and height) was the cropped photo?

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Community Beginner ,
Sep 23, 2015

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printed 4x6, ill get back to you on pixels. sorry don't have that with me

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Advocate ,
Sep 23, 2015

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Let's say you're shooting full size jpegs with your Nikon. They're maybe 4000x3000 pixels. You're using a wide angle lens to shoot your family in Disneyland so you decide to crop in on the people and crop out that huge castle they are standing in front of. Your crop reduces the image size to, say, 20% of the original, 600x800 pixels. Using a 300 pixel/inch printer, your image will be 2x3 inches at full rez. If you scale it up to fill a 4x6 inch printing area, you are expanding each pixel 400%. You are just making the pixels bigger; you don't get any more pixels.

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Community Beginner ,
Sep 23, 2015

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I see, I'm a self taught beginner.

So any cropping you do on a photo reduced the resolution?

Can you explain the image size in light room and how I should use it?

I do a lot of reading and a lot of practicing with my camera and 9 month old baby and 3 dogs! lol

ANY advice is greatly appreciated.

Thank you for responding

Katelyn

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LEGEND ,
Sep 23, 2015

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So any cropping you do on a photo reduced the resolution?

If by "reduced the resolution" you mean fewer pixels, then yes, that's true.

Can you explain the image size in light room and how I should use it?

When you export an image, you can change the number of pixels in the exported image. If your cropped image is, for example 2000x3000, and you want it to come out at a different number of pixels, then you could select (for example) 1000x1500 in the Export dialog box.

For printing, if you are going to print at 4x6, then you need to crop the photo so it has this aspect ratio. Then, when you export, you want 300 pixels per inch for printing, which would mean you need 1200x1800 pixels (or more) to get a good print.

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Community Beginner ,
Sep 23, 2015

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so 8x10 you would want 2400 x 3000? thank you!

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Adobe Community Professional ,
Sep 23, 2015

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Community Beginner ,
Sep 23, 2015

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thank you very much

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Adobe Community Professional ,
Sep 23, 2015

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As an FYI. I ran some tests using Costco printing, which requires 300 ppi for optimum results (see below). I took a 125 ppi image and resized it to 300 ppi inside LR and then had 4" x 6" prints made at Costco using glossy paper. The prints with Gloss 'Standard' and 'High' Export Output Sharpening looked good. You can get acceptable results with images as low as 125 ppi image dimensions if the cropped image is reasonably sharp (i.e. sharp focus and good lens quality). This is especially true for enlargements that are normally viewed at a further distance. See this article: Resolution for print viewing distance

Here are the suggested Export settings for 8" x 10" crops that you know will be upscaled. If you have sufficient image dimensions (2400 x 3000)  then use Output Sharpening 'Standard' setting and select the target paper type (Glossy, Matte). Make sure your LR Crop tool is set to '4x5 / 8x10' for making 8" x 10" prints.

Keep in mind the print size is 4" x 6" so try to adjust the screen view size to that size on your monitor.

(Click on image to see full-size)

Resample 300dpi 8x12.jpg

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Community Beginner ,
Sep 23, 2015

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‌original dimensions 4928x3264 cropped 3601 x 2385

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Community Beginner ,
Sep 23, 2015

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‌is that the numbers you wanted?

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LEGEND ,
Sep 23, 2015

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Yes those are the numbers I was looking for, and those look good, so the next issue is how did you do the export of these photos? What settings did you choose in the Image Sizing portion of the Lightroom Export dialog box? Show us a screen capture if possible. Or alternatively, what size in pixels (width and height) was the exported file that had the printing problem?

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Community Beginner ,
Sep 23, 2015

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To export- I used file export and sent them to my pictures, uploaded to USB to take to picture kiosk.

Image sizing I left on the default width & height, I didn't make any changes in the export box.

I have sense made the changes the person above recommended to long edge 10 in 300 ppi resize to fit box checked glossy paper standard sharpening.

should that be a good print?

Thank you so much for the help! I really appreciate it.

If you have any recommendations or tips I appreciate that.

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Adobe Community Professional ,
Sep 23, 2015

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>Image sizing I left on the default width & height,

That's the problem. You need to either turn off the scaling, or you need to scale to the exact right resolution needed for how large you want to print. You can specify the size in inches and then enter 300 in the resolution field if you scale. If you scale, make sure to specify the output sharpening for the type of paper you want to print on for the very best results. The settings trshaner shows are what you want. The resolution of your cropped file is more than enough for a good print.

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Community Beginner ,
Sep 23, 2015

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ohhhh ok. Thank you sooooo much!! Can you explain what scaling is and what it's used for? Thanks again!

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Adobe Community Professional ,
Sep 23, 2015

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Scaling: to make something bigger or smaller while maintaining the proportions of the original dimensions.

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Adobe Community Professional ,
Sep 23, 2015

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Imagine that your original is 3000x2000 pixels. When you are printing at 300 pixels per inch, that becomes a 10"x6 2/3" print. If you print that same image on a 6x4, you can either keep the file as is and your print is now 500 ppi. However, most printers such as the photo printers cannot print at such a resolution, so what you can do is scale down the original image to be 300 ppi at 6x4. This is 1800x1200 pixels. So the original pixels in the original image have to be averaged and interpolated to show the same image but in fewer pixels. This is downscaling. You can do this scaling yourself in the Lightroom export panel, or you can let your printing service take care of it for you.

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Community Beginner ,
Sep 24, 2015

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Thank y'all for all the information!!! Super helpful.

I will make the adjustments tonight and print them and let y'all know how they look!

Thanks again!

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Community Beginner ,
Sep 24, 2015

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‌if I export imae sizing resize to fit long edge 10 in 300 points can I print in any size?

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Community Beginner ,
Sep 24, 2015

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‌300 ppi sorry. Auto correct

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Community Beginner ,
Sep 24, 2015

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how do you turn of scaling and where do I find the trshaner setting you are taking about?  Jao vdL thanks again

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Adobe Community Professional ,
Sep 24, 2015

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'Scaling" is done using the Export module 'Image Sizing'> 'Resize to fit' option. (See post #9.)

Using 'Long Edge' insures that both landscape and portrait images will be exported to the proper pixel dimensions. For example using Width 10" & Height 8" with Resolution 300 ppi will cause landscape images to export as 3000 x 2400 pixels. Portrait images will export as  2400 x 1600 since they are "constrained" by the smaller 8" Height setting. Using 'Long Edge' allows batch export of multiple "mixed orientation" landscape and portrait images all at once without having to change any settings.

1) Set your Crop tool to the ratio for the print size your will making. For 8" X 10' use 8 x 10, For 16" x 20" use 4 x 6, which is the same aspect ratio.

2) In LR Export 'Resize to fit' select 'Long Edge' and input the larger print dimension (10" for 8" x 10" and 24" for 16" x 24" print size).

3) Set 'Resolution' to the required printer's resolution, which is usually 300 pixels per inch.

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Community Beginner ,
Sep 24, 2015

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wow awesome! thank yall so much. just picked pictures up they look great!!!!!!!!

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Community Beginner ,
Sep 24, 2015

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‌my final question (for now)

is there a setting to export pictures to print in any size?

for example if I take pictures for somebody and send them to that person how can they develop them in whatever size they desire? Is that possible.

THanks again have a blessed day

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Adobe Community Professional ,
Sep 24, 2015

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What you do in that case is to export at the largest size that they would possibly print at. The printing service will scale down for them. These services generally don't do as good a job as Lightroom but I doubt many people would be able to notice.

Sent from my ...

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Community Beginner ,
Sep 24, 2015

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‌let's say biggest size 9x10 I would put 10in 300 ppi?? Yes?

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Adobe Community Professional ,
Sep 24, 2015

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It depends on how you cropped your image. If you cropped at a 4x5 ratio than yes that should work (I am assuming you meant 8x10 instead of 9x10 as the latter is not a standard print size. However if your image is uncropped it is typically a ratio of 2*3. If you print that on 8x10 some parts at the long end will get cropped off by the photoservice. If that is ok by you, you want to export using the short dimension as the setting (I.e. 8 inch at 300 ppi). There is a pop up in export that allows you to set which dimension you want to use for the scaling.

P.s. Many people in your situation where you are not going to demand the absolute top quality because your audience would never notice (the overwhelming majority of people) simply export the picture at its native resolution (I.e. Turn off the scaling in export) and send that file. This is true if you are not making money of the images and just sending files to friends and family for them to print themselves. This generally results in very large files that might be hard to send over email, so some scaling is not a bad idea in general (10" on the long side at 300 ppi is a pretty good compromise) but if you're don't want to deal with it you don't have to.

Sent from my ...

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Adobe Community Professional ,
Sep 25, 2015

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In addition to what said most photo service websites such as Costco will automatically show uploaded pictures that have the wrong crop ratio for the selected paper size. You can then move the website picture image to center it where you want the crop or choose a different paper size with the correct aspect ratio. Virtually all DSLR cameras like your Nikon D7000 output image files with 2x3 ratio. If you like that aspect ratio most print houses offer print sizes to use the whole image, which would be 4x6, 8x12, 16x24 inches. All of these sizes are 2x3 aspect ratio! Both 8x10 and 5x7 print sizes will require some cropping off the original camera image long sides.

Simply Export full-size images to JPEG, Quality 85, sRGB, with 'Resize to fit' and Output Sharpening unchecked and then upload to your photo service website account. Proper image sizing and sharpening will automatically be applied by the print process. The only suggestion I would make is to unselect any "autocorrect" options on the photo order, which will apply color and tonal corrections. Since you are doing this your self inside LR you'll end up with prints that may not look different.

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Advocate ,
Sep 25, 2015

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Kate, The question you started out with is fundamental to understanding—and enjoying—digital imaging. It's complicated. If Lightroom is going to be an important tool for your photography business, consider buying one of the big books on the topic (see amazon, search for Lightroom). LR is incredibly deep and rich but those capabilities come with tremendous complexity.

If you're a snapshooter or hobbyist, Lightroom is probably a much bigger and capable application than you really need. For instance, if you're not shooting raw (or using Adobe Camera Raw in Photoshop) you're missing out on what might be the most powerful aspect of Lightroom, ACR in the Develop module.

Photos on the Macintosh is great but, sad to say, a bit of a downgrade from the previous iPhotos. I don't use Windows so I don't know if there a similar app for the PC.

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Community Beginner ,
Sep 25, 2015

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‌thanks for all the helpful information! I'm a full time working mom but trying to learn photography. My book on Lightroom came in today! Purchased Victoria Bamptons book on lightroom 5 thanks again! ❤️

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Enthusiast ,
Jun 04, 2018

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You could try Crop Tool with Content-Aware function is the best solution in Photoshop Version: 19.1.1 or later. This is an automated procedure Photoshop calculate itself to make the size bigger or lower without losing quality.

Content Aware.png  

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Adobe Community Professional ,
Jun 04, 2018

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tmyusuf74​, did you note that you answered to a 3 years old question

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