Z3 not capturing close up photos properly....need proper setting

Question

I'm very disappointed with Z3.
It isnt able to focus on and capture closeup objects clearly. I tried **bleep** lot of setting but nothing seems to work.
In fact my Lumia 730 phones captures any closeup photo with a breezee and that too on automatic settings.
Z3 does captures close object but not much close enogh which I want. For that I have to always use my Lumia phone to capture objects as close to near 5cm or less.
In one of my old threads @ Ashroft98 suggested me a setting:
To take close up,again you could use "Superior Auto" (which works the best,for me) or second,change to Manual Mode and change to these settings "Exposure to f2.0 and change ISO to 50" credits to @SergioPL for sharing these custom settings.
I dint got what he meant by Exposure to f2.0. Which value is to be set to 2.0?
1] Also what is Metering setting and why should we use it?
2] Does Metering and Focus mode interfere with each other?
3] And when should we turn on HDR & Image Stabiliser settings? Are they helpful for a Close-up capture?
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Answer 1

Hello RohitTech I am going to make this as short as possible but you are asking a lot of questions...
0) The Z3 / Z3C is tricky to take Macro photography... It also happens to me and I think it is a weakness of those devices maybe because of the wide angle lens
What I do to take "better" macro pictures (either on superior auto or manual mode) is to get close to the subject BUT not too close, in fact I keep the camera at over 10 cm apart, and press the shutter button until you see the Focusing Square BLUE, this will let you know that the object is in focus. AND THEN I will zoom in until the first step, which lets you know that you are still taking an 8MP picture, using lossless zoom (basically cropping the full 20MP into an 8MP at the center). In the end the pictures look way better. But to be honest this phone is no the best suited for macro.
Here is a pic I took using the method I just described and to the right is another image without zoom, as close as I could get without losing focus. Both are cropped to similar magnification and both are 8MP pictures taken in Superior Auto Mode. (TO SEE BETTER, SAVE THE PICTURE AND OPEN FULL SIZE)
1) Metering is the area inside the frame, used to detect how much light it lets into the sensor. For instance, if you set Metering to "Spot" it will adjust the whole image according to the light conditions in a small spot (no bigger than the focusing square)... this way if you are pointing at a light bulb the whole picture will turn very dark and you will be able to take a pic of said light bulb. If you set metering to "Center" (or Face, both recommended for regular use) the lightness of the image will be calibrated to an area in the center (or at the face of a subject) bigger than spot, but smaller than "Multi".
2) Metering and Focus are different settings and normally do not interfere with each other. Metering is the calibration of light across the image, and Focus is the concentration point of the image, where the subject/s will look sharper.
3) HDR should be turned on for pictures with very different contrast in scene, for example taking a picture of somebody with backlight (HDR will help reducing the light at the background and compensate the subject in the front)... please take a look at this suggestions I made.
Image Stabiliser is very helpful when recoding video, taking low light pictures and movement in general (when the movement is present at the camera)... For taking pictures of moving SUBJECTS you should switch to Manual Mode and select Sports scene.
I would NOT recommend HDR for macro (close-up) captures because the contrast is dimmer and you will lose details.
My advice is to actually try every setting and mode and see how it changes in your pictures, dont be afraid to tweak, it is all reversible... I self taught everything I know about photography ( I am not a pro) and I started learning with my old Xperia Acro S. My new Z3 Compact is actually very different in many areas.