Mobile photography

Discussion in 'Cell Phone Cameras & Camera Phones' started by Nugget00, May 26, 2016.

  1. Nugget00

    Nugget00 TPF Noob!

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    Hi.
    I'm new in photography and I don't have a professional camera, so I'm using my phone for taking photos. I watched a lot of tutorials for start, but I was wondering if anyone of you could help me with starting. I know the basics, like using HDR, when to set ISO to smaller ot higher etc.
    So, if you have any tips for start I would like to hear them.


     
  2. Ysarex

    Ysarex Been spending a lot of time on here!

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    Get a camera. Don't watch the tutorials that pass out bad info, for example what did you learn that ISO does?

    Joe
     
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  3. jcdeboever

    jcdeboever TPF Supporters Supporting Member

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    What's ISO? Lol. Get a camera and post pics on here with your settings and comment on what you would like clarification on.

    Sent from my XT1254 using Tapatalk
     
  4. Nugget00

    Nugget00 TPF Noob!

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    Well, I watched a guy on youtube and he said that ISO can be used to define light sensitivity of your camera and to decrease shutter speed. Like, the higher ISO, less light is needed for picture.
     
  5. Nugget00

    Nugget00 TPF Noob!

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    I don't know the full name for ISO, you can look on google
     
  6. Ysarex

    Ysarex Been spending a lot of time on here!

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    ISO stands for International Organization for Standardization. The guy on Youtube was wrong, but that's to be expected. Youtube is the largest repository of misinformation the human species has ever brought together in one place. Which begs the question, what are you doing there?

    You actually have a bit of a tricky problem here. Photo is a very popular avocation and practiced by nearly everyone to some degree. So it stands to reason there's a lot of bad info out there. Sorry I can't point you to a single source of all the good info (but watch out for Youtube!). This one's not too bad but they get ISO wrong: Cambridge in Colour - Photography Tutorials & Learning Community

    Here's a hint about ISO in a digital camera: Changing it doesn't alter the sensitivity of anything.

    Joe
     
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  7. Designer

    Designer Been spending a lot of time on here!

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    When using a camera that only has "automatic" available, changing the ISO will make the shutter speed change.

    When you begin looking at cameras with more variables, you will find that this method of changing the shutter speed is generally not needed because you can change the shutter speed independently of the ISO setting.

    It is quite common to put the ISO into automatic mode, particularly if concentrating on the shutter speed and aperture setting.
     
  8. KmH

    KmH Helping photographers learn to fish Supporting Member

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  9. Nugget00

    Nugget00 TPF Noob!

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    So it looks like youtube is not a good place for learning this type of thing. Thank you for answers
     
  10. Designer

    Designer Been spending a lot of time on here!

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    Don't write off YouTube entirely. There are good ones mixed in with the not-so-good ones.
     
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  11. Ysarex

    Ysarex Been spending a lot of time on here!

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    It can be -- the problem is vetting the source. If you're really new at something then you don't have the tools you need to critically examine the source of information. There's some good stuff on Youtube, but here's how I describe it to my students. You're in a sewer and the gunk is 5 inches above your wrists with your hands on the bottom. In the next 100 yards are a dozen precious gem stones. Get on your hands and knees and work your way through -- you'll find them.

    Joe

    P.S. In a digital camera the sensor is light sensitive. It's light sensitivity is fixed in manufacture and can not be raised or lowered. It is what it is and it's staying what it is. The base ISO value for the camera is a fair rating of the light sensitivity of the sensor. So for example 200 is the lowest (base) ISO value for my camera and so it's reasonable to say that my camera's sensor is ISO 200 light sensitive (an oversimplification but we can live with that for now).

    If I raise the ISO value on my camera it has no effect on the sensor and does not in any way change the light sensitivity of the sensor. Changing the ISO does two things: 1. It puts a spin on the light meter and causes the meter to calculate different exposure parameters. So if for example my meter had calculated 1/100 sec. shutter speed at f/8 lens aperture with the ISO at 200 then with the ISO at 800 it might recalculate those parameters as 1/400 sec. shutter speed at f/8 lens aperture. The faster shutter speed will then expose the sensor to less light.
    2. Then ISO's 2nd function kicks in. This function is strictly a post processing function. It is applied via the camera's electronics and software after the photo has been taken. There are different ways that different cameras handle this so I can't specifically describe one way fits all but basically the camera electronics and software brighten up the underexposed image that the sensor recorded.

    Your YouTube guy was saying ISO lets you change sensitivity. It does no such thing.

    Joe
     
    Last edited: Jun 14, 2016
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  12. Nugget00

    Nugget00 TPF Noob!

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    Thank's man you helped alot :)
    I'll just stick with what I know, I don't want to complicate my life if I just started with photography
     

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