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Posted: Sat Dec 14th, 2013 07:23
 
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Eric



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Robert wrote:
In lightroom, or any other image viewer, expand the image to 100%, then take a screen shot of the area of interest. On a Mac that is 'Shift + Command + 4 >drag selection and release mouse button', I am sure there will be some key chord to make a selection screen shot on a PC.

100% = one image pixel for one screen pixel.

In fact it has lost some quality from me to you, when I compare the crop I made here with the same image on the forum it's not quite as good but it does convey my message, or at least I think it does...

Hope that clarifies it!


So...does this forum software display your embedded images at 100%?

I thought it compressed them.



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Posted: Sat Dec 14th, 2013 07:29
 
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jk



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Eric wrote: Robert wrote:


Here is a 100% crop (pixel of image = screen pixel) .


Run that by me again?

I've never understood 100% crop.


Nor me.  I prefer to give a magnification.
In Photoshop it is shown as a percentage so a 100% is ??????  x2 magnification or what!

I guess it is doing a pixel count so a rendering on screen with the same number of pixels as the raw image of  6000pixels x4000pixels (24MP image) is 100%.




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Posted: Sat Dec 14th, 2013 10:25
 
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Robert



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Eric wrote:
Robert wrote:
In lightroom, or any other image viewer, expand the image to 100%, then take a screen shot of the area of interest. On a Mac that is 'Shift + Command + 4 >drag selection and release mouse button', I am sure there will be some key chord to make a selection screen shot on a PC.

100% = one image pixel for one screen pixel.

In fact it has lost some quality from me to you, when I compare the crop I made here with the same image on the forum it's not quite as good but it does convey my message, or at least I think it does...

Hope that clarifies it!


So...does this forum software display your embedded images at 100%?

I thought it compressed them.


It only compresses large images, above 1024 pixels I think. It does compress the quality (tonal range?) too of course.

The '100%' image I posted is exactly the same size as my crop, which was at 100% magnification in lightroom which is exactly the same as 100% in photoshop, I can't see where the confusion lies, magnify the image to 100% ie. 1 screen pixel = 1 image pixel and do a screen shot of an area of interest?



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Posted: Sat Dec 14th, 2013 10:42
 
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Eric



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Robert wrote:
Eric wrote:
Robert wrote:
In lightroom, or any other image viewer, expand the image to 100%, then take a screen shot of the area of interest. On a Mac that is 'Shift + Command + 4 >drag selection and release mouse button', I am sure there will be some key chord to make a selection screen shot on a PC.

100% = one image pixel for one screen pixel.

In fact it has lost some quality from me to you, when I compare the crop I made here with the same image on the forum it's not quite as good but it does convey my message, or at least I think it does...

Hope that clarifies it!


So...does this forum software display your embedded images at 100%?

I thought it compressed them.


It only compresses large images, above 1024 pixels I think. It does compress the quality (tonal range?) too of course.

The '100%' image I posted is exactly the same size as my crop, which was at 100% magnification in lightroom which is exactly the same as 100% in photoshop, I can't see where the confusion lies, magnify the image to 100% ie. 1 screen pixel = 1 image pixel and do a screen shot of an area of interest?


Probably just a mental block.:banghead:



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Posted: Sat Dec 14th, 2013 12:33
 
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jk



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Eric
Probably just a mental block.:banghead:


+1
o.O



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Posted: Sat Dec 14th, 2013 12:59
 
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Robert



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Eric, JK, you take such lovely images, forget the technicalities, who cares, just keep making beautiful pix!!! :bowing:

:hardhat:



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Posted: Sun Dec 15th, 2013 21:40
 
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naxz

 

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thank you very much sir for your reply. I already bought D3100, I choose it other than D3200 because of its lower price hehe!!. Honestly I don't have any idea of the said camera specially its menu functions and buttons. I look forward of getting an idea from professional photographers like to guide me. If I may ask again, what should I consider first when taking picture using D3100 in bright light and low light? Hoping for your favorable response...

 




Posted: Mon Dec 16th, 2013 02:42
 
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Robert



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In a way it might be best to turn the top knob to the green 'AUTO' setting to start with. Despite my ability to make my own settings, when I am using the 3100 I tend to run it in auto, but once you get more used to the camera and you want to be more creative you can gain full control right up to full manual settings.

On the back screen you can set a graph or histogram of your image to appear after you have made an exposure.

That graph is your friend when taking photographs in bright or poor light. By checking the graph you can see if you have over or under exposed the scene. What you are looking for is an even distribution across the entire graph, with data to the left and right but NOT all bunched up at one side or the other.

Check out reading and understanding histograms on the internet, here is one link which give a good explanation but there are many others:

http://digital-photography-school.com/how-to-read-and-use-histograms

Until you understand the limits of exposure you are best working in the auto mode and concentrate on composition of your image, fill the scene. Be sure a photograph has a subject and a background, the subject does not have to be dead centre of the scene; check the light, that is what makes the photograph, sometimes really bright light is not the best, you need some contrast in the scene.



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Posted: Mon Dec 16th, 2013 09:17
 
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Eric



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naxz wrote: thank you very much sir for your reply. I already bought D3100, I choose it other than D3200 because of its lower price hehe!!. Honestly I don't have any idea of the said camera specially its menu functions and buttons. I look forward of getting an idea from professional photographers like to guide me. If I may ask again, what should I consider first when taking picture using D3100 in bright light and low light? Hoping for your favorable response...
Personally, I wouldn't bother about camera setting in the first instance. Set it on Auto as Robert mentioned, and take a few shots over a few days....different lighting, indoor, outdoor close up, scenery....a variety of subjects.

Then LOOK at each photo. Study it and ask yourself these simple questions.....

What's good and what's bad about it; what would I like to change; what would improve the image?????

THEN its a matter of deciding how / if  the camera can be configured to make those improvements.


Some of the things to look out for....

1. Main subject(s) too dark or light when compared to its surroundings/background
2. Main subject(s) blurred or subject AND background all blurred
3. Main subject(s) / subject areas not sharply in focus
4. Grainy appearance to the photo



The quickest way to understanding how a camera performs is to take photos ....and look for those ways to improve the images. 

There are plenty of people on the forum who will happily advise you on how best to make the changes you require.























 



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Posted: Tue Dec 17th, 2013 01:58
 
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naxz

 

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thank you again for your input and advice sir...I will post here some of the photos directly from my new DSLR.

 

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