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Post by Inspeqtor on Nov 1, 2020 1:22:35 GMT
I took a full moon picture tonight. Full size is 6960 X 4640 I used my Sigma 150-600MM lens with my Sigma 2.0 TC When I cropped it to 8X8 and looked at the pixel size I was surprised it is only 744X744 Why wouldn't it be closer to 3000x3000? As you can see the moon does cover most of the size of the frame in the full size photo   Thank you |
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Post by Inspeqtor on Nov 1, 2020 1:23:18 GMT
Woops, I uploaded wrong photo - that was the 600mm size
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Post by Inspeqtor on Nov 1, 2020 1:25:47 GMT
Hopefully this is the correct photo!!  |
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pontiac1940
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Post by pontiac1940 on Nov 1, 2020 1:45:08 GMT
Charles This might help. After selecting the crop tool, set the dimensions at 8 inches by 8 inches and make sure the resolution is at 300 ppi assuming that is the rez you want. As noted, then the cropped image will be 2,400 by 2,400 pixels. See where it says "Custom" above the 8 by 8 dimensions? Makes sure that says custom. I screw up sometimes get it wrong. Clive Note to admins. This is my photo.  |
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Post by BuckSkin on Nov 1, 2020 3:29:23 GMT
Another way that works, in Elements 7 at least, that will not resample the image resolution:
I assume you chose 8x8 because you want a square image.
With the Crop tool active, select 8x8, define your crop; then, before clicking the green check-mark and executing the crop, change 8x8 to "No Restriction", then execute the crop.
This will yield a square crop that is of the same resolution and contains the same amount of pixel data as the un-cropped file.
If you want a ready to print, finished product, that will print 8x8, then indeed do as Pontiac has described.
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Post by Inspeqtor on Nov 1, 2020 3:41:13 GMT
Thank you Clive! That is what I needed!
How did you know it would end up 2400 x 2400??
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pontiac1940
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Post by pontiac1940 on Nov 1, 2020 3:43:39 GMT
How did you know it would end up 2400 x 2400? 8 inches by 300 ppi = 2,400 pixels |
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Post by Inspeqtor on Nov 1, 2020 3:55:11 GMT
Another way that works, in Elements 7 at least, that will not resample the image resolution: I assume you chose 8x8 because you want a square image. With the Crop tool active, select 8x8, define your crop; then, before clicking the green check-mark and executing the crop, change 8x8 to "No Restriction", then execute the crop. This will yield a square crop that is of the same resolution and contains the same amount of pixel data as the un-cropped file. If you want a ready to print, finished product, that will print 8x8, then indeed do as Pontiac has described. Buckskin, You snuck in the back door when I was trying Clive's suggestion! Yes I did want a square image, I figured 8X8 would give me better resolution than something like 4X4 or smaller. I tried your trick, I did make the outline of my crop, and before I clicked on the green check mark as soon as I clicked on "No resolution" it canceled my crop completely which took away my cropped lines. Is this because I am using a newer version than you using version 7? |
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Post by Inspeqtor on Nov 1, 2020 3:56:45 GMT
How did you know it would end up 2400 x 2400? 8 inches by 300 ppi = 2,400 pixels AAaaahhh multiply 8 X 300!! Got it! |
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Post by fotofrank on Nov 1, 2020 3:58:30 GMT
Charles, if you have an image from a canon camera, my guess is that it is about 60 inches wide as it is at 72pixel. So getting an 8 inch image at 72 pixels per inch would be in the 744 pixel range.
If you where using 300 pixels per inch the image would be about 20+ inches across and an 8x8 would be 2400 x 2400 pixels.
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Post by BuckSkin on Nov 1, 2020 4:03:10 GMT
I clicked on "No resolution" it canceled my crop completely which took away my cropped lines. Is this because I am using a newer version than you using version 7? You select "No Restriction", not "No Resolution" = it should be in that menu where it says "Custom" in Pontiac's screenshot. My explanation always works in Elements 7; maybe something has changed for the worse in later versions. I will fire up Elements 12 and see if it works there. |
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Post by Inspeqtor on Nov 1, 2020 4:12:05 GMT
Charles, if you have an image from a canon camera, my guess is that it is about 60 inches wide as it is at 72pixel. So getting an 8 inch image at 72 pixels per inch would be in the 744 pixel range. If you where using 300 pixels per inch the image would be about 20+ inches across and an 8x8 would be 2400 x 2400 pixels. Yes I do use a Canon body, right now the 90D. My full resolution picture is 6960 X 4640. I understand that 8X72=744.... but where are you getting the 72 pixels from? I found in Elements today when I change the size of the crop, the resolution box goes empty. That I am guessing is where the 72 came in at. I never realized the resolution box goes empty before today. Sometimes it might be weeks I do not use Elements, other times a few days. When I learn something new here I always take notes so the next time I do something in Elements I can go back and look at my notes!  |
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pontiac1940
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Post by pontiac1940 on Nov 1, 2020 4:22:04 GMT
I figured 8X8 would give me better resolution than something like 4X4 or smaller. Well that 's important if you are making prints. However (and someone please step in here) when posting online or in emails the images display as pixels only. These two goose images were created with two different cropping settings. One cropped to 8 by 10 at 100 pixels per inch and the second cropped to 5 by 4 inches at 200 pixels per inch. Their display dimensions are identical being 1,000 by 800 pixels.   |
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Post by Inspeqtor on Nov 1, 2020 4:32:25 GMT
I clicked on "No resolution" it canceled my crop completely which took away my cropped lines. Is this because I am using a newer version than you using version 7? You select "No Restriction", not "No Resolution" = it should be in that menu where it says "Custom" in Pontiac's screenshot. My explanation always works in Elements 7; maybe something has changed for the worse in later versions. I will fire up Elements 12 and see if it works there. I typed the words "No Resolution" but I meant to type "No Restriction" cuz that is what I did do. I just did the actions again...same results. My old brain playing tricks on me as usual. I do not see "No Resolutions" in Elements anywhere to click on in this particular screen |
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Post by Inspeqtor on Nov 1, 2020 4:35:10 GMT
I figured 8X8 would give me better resolution than something like 4X4 or smaller. Well that 's important if you are making prints. However (and someone please step in here) when posting online or in emails the images display as pixels only. These two goose images were created with two different cropping settings. One cropped to 8 by 10 at 100 pixels per inch and the second cropped to 5 by 4 inches at 200 pixels per inch. Their display dimensions are identical being 1,000 by 800 pixels. Thank you Clive! This is interesting! |
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