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Loss of detail

jblogs Avatar
jblogs 2
21 Jun 2021 2:23PM
I'm using a Lumix FX82. I can take photos that are fine but when I zoom in on them using the touch screen/monitor the photos seem to lose detail/resolution.
I am shooting in RAW mode in manual.
when I download the photo to my computer and zoom in I also lose detail.
The information on the photo tells me I am shooting at 72 pixels per inch, I was expecting this to be considerably higher in Raw.

I kind of new to this as you may have guessed, any pointers?
Dave_Canon Avatar
Dave_Canon 17 2.2k United Kingdom
21 Jun 2021 3:16PM
72 pixels per inch in meaningless in the context of a Raw file. I presume you have processed your Raw files in a Raw Editor (which one?) and rendered them in a bit map format which you would have to do to display them (what dimensions?).

Tianshi_angie Avatar
21 Jun 2021 7:41PM
You will need to set the image size on your camera. It is probably in the manual which if you haven't got one then it can be downloaded - do a Google search for 'manual Lumix FX82' (I am wondering if you have the name of this camera correct as it didn't come up in a search I made). The size of the image is the starting point but you will also need to set the resolution - so if you want to enlarge your images then make the resolution as high as possible within the parameters of your camera. You will also need, as Dave has said, a programme to download your raw images to from which you can then 'develop' them. Raw is the parallel to Digital as a negative was to film. The difference of course is that you don't need a dark-room, but you do need a computer. There are many programmes that will do this - has a list of free and paid for but I actually use Adobe Camera Raw. There are many tutorials on You-tube in converting a Raw file into an image that you are pleased with but it can take a while to learn to be gentle with the adaptations and to understand fully what each change does to the image - don't be afraid to play as it is really the only way you'll learn. Good Luck and happy photography.
Jestertheclown Avatar
Jestertheclown 14 8.8k 255 England
21 Jun 2021 8:20PM

Quote: I can take photos that are fine but when I zoom in on them using the touch screen/monitor the photos seem to lose detail/resolution.

You need to be quite a bit more specific.

Angie refers to setting the size of your images. Their physical dimensions will be dictated by the physical dimensions and pixel count of your sensor. Kind of.

Their resolution; not really a word that has a specific meaning, will probably be referred to, somewhere in the menus, as "picture quality" or something similar. Having found it, you'll be offered a selection of Jpeg. options and (possibly only) a couple of options re. raw files.

I'm not sure where you might have found 72ppi. but for the moment, disregard it.

Can you tell us what you've done to your images. Presumably, you've put them through software. If so, which software have you used?

I've just looked up "Lumix FZ82," which I'm guessing is what you've got and it's one of those "superzoom" bridge cameras with a certain level of optical zoom, topped up by masses of, in this case, "intelligent zoom." Or as it's better known, "digital zoom."
That extended "Intelligent" zoom does no more than crop your image and magnify what's left which would immediately explain the loss of quality and pixelation that you're experiencing.
Try shooting within the limit of the optical zoom and see if there's any improvement. The less you "zoom," the better the quality of your images.
I should imagine that, somewhere within the menus, there's an option to switch off "intelligent" zoom permanently.
banehawi Avatar
banehawi Plus
19 3.0k 4373 Canada
21 Jun 2021 11:48PM
I think you mean you have a Lumix FZ 82

It has a tiny sensor, roughly equivalent to many smart phones. So when you zoom in as you describe, you will quickly see individual pixels, which will appear much less sharp. It like magnifying newsprint, you zoom in enough and you will see the ink, not the letters.
This is NOT the same as the cameras lens zooming, which makes the subject its pointed at larger.

As long as the images look ok, its all normal.


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