Export photos in full resolution

Sorry - I may have misunderstood.

That *is* an 11.2MB Image. Sorry - I assumed you were talking about iphone images which are typically 12Megapixels. In fact yours are 6000x4000 = 24Megapixels.

How are you exporting? You need to select an image, and then use file>export. If you drag from photos you will only get a preview image.

Even so - you may find the jpg file saved is smaller than the 11.2MB of the orignal image due to the different level of compression applied, as determined by the quality setting in the export pane. It will still be a 6000x4000 image though (assuming you select full size)

(Note: "Correct Size" can mean two things. The size of the image in pixels - 6000x4000 in your case. Or the file size on disk. The first is the only one that can be correct. The file size on disk can vary a lot depending on the file format. An uncompressed 16 bit tiff for example could be as large as 140MB for a 24Mpix image.)

If you want to export the exact same image you imported, you can choose "Export unmodified original" instead of export - but then it won't have any edits you might have applied.

By the way - how to take a screenshot :-)

https://support.apple.com/en-gb/HT201361

To demonstrate how the image detail/complexity impacts file size, I just took a picture of a blank wall. The file size is 1.1MB - the image is still 12Megapixels. A detailed picture of a road surface I took earlier today is a 5MB file.

There are two confusing terms at play here.

One is size - that refers to the dimensions of the photo - length by breadth - measured in pixels or mega pixels

The other is Quality. That refers - to coin a phrase - the weight of the file, measured in bytes or megabytes.

So you can have a Jpeg that is 5 megabytes and which contains a photo that is 1 megapixel. Or, indeed, vice versa.

So when you say a 12 meg jpeg photo and 2.5 sized - what are you referring to?

Export the file like this:

and this:

12Meg is the number of pixels. The file size is the number of MBytes of storage needed to store those pixels.

If you click on the image file in finder, then open info (CMD-I) it will tell you the image dimensions. Multiply them together to see the number of megapixels.

I assume you are exporting in jpeg format. That is a compressed format which means it takes much less than 3 bytes per pixel to store the image. In fact the size of the file will depend on how much complex detail there is in the image.

For best quality - choose full size, and maximum quality (if jpeg)