Digital Cameras Forum

Digital Cameras Forum Discuss compact digital cameras or ask general digital photography questions - what camera to buy, memory cards, digital camera accessories, etc. You may also want to look at the Digital SLR forum, or the Camera Manufacturer forums.
Digital Camera Pro Reviews >>
Read and Write Digital Camera Reviews >>
Digital Camera Buyers Guide >>
Results 1 to 2 of 2

Thread: New Camera

  1. #1
    Proud Owner Of A Canon
    Join Date
    Mar 2004
    Mountain Home, Arkansas, US of A

    New Camera

    Well, I decided that my old HP Photosmart 215 wasn't going to cut it anymore

    So I went out and bought the best camera I could for the money, which was the Canon PowerShot A60. I was thinking about the A70, but I won't be printing anything over 8x10, if even that, so this should be fine. So far I am very pleased, I love the manual settings and all the options. I'm not new to photography, but I could use some help on a few things. What is the F#.#? And what exactly does the ISO do? I know it has something to do with light.

    Here are a few sample pictures that I took earlier today.

  2. #2
    Captain of the Ship Photo-John's Avatar
    Join Date
    Aug 2001
    Salt Lake City, Utah, United States

    What the heck?

    Is that frozen water coming out of your tap?

    Ok, here's some answers. First of all, there's a glossary on this site that you can check any time you have questions like these. It has most photo terms listed although I should probably go through it and see if there are digital terms missing.

    Glossary >>

    The "f-number" refers to the size of the aperture you're using. The aperture is the hole that light travels through, in the lens, before it reaches the film or sensor. The aperture is one of the two main exposure controls available to you. The other is shutter speed. You can either change the size of the aperture or the shutter speed to control the amount of light that reaches your film or digital sensor. That's what we call exposure. The "f-number" expresses the relative size of your aperture. The larger the number, the smaller the hole. For instance, at f/3.5, your aperture is much larger than it is at f/22. A bigger number means a small hole and less light. Aperture also controls depth-of-field. But that's another lesson...

    ISO stands for "International Standards Organization". There are all kinds of ISO ratings for all kinds of things. In photography, ISO refers to the sensitivity of your film, or a sensitivity setting for your digital camera sensor. The larger the number, the more sensitive the film or sensor setting. And the higher the sensitivity, the more noise. With film you choose a film and it has an ISO rating. Digital cameras are more flexible because you can change the ISO setting any time you want. Regardless, ISO refers to the sensitivity of your light-sensitive device, whether that be film or a digital sensor.

    Hope that helps. If you've got questions, we've got answers. Stick around and learn!

    Your reviews are the foundation of this site - Write A Review!

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Press release: Nikon D70 Digital SLR
    By Photo-John in forum Camera News & Rumors
    Replies: 10
    Last Post: 07-07-2004, 07:20 PM
  2. Press Release: Kodak DCS Pro SLR/n
    By Photo-John in forum Camera News & Rumors
    Replies: 1
    Last Post: 02-23-2004, 09:59 PM
  3. Press Release: Canon PowerShot A75 and PowerShot A310
    By Photo-John in forum Camera News & Rumors
    Replies: 0
    Last Post: 02-09-2004, 03:14 PM
  4. Press Release: 8 Megapixel Canon PowerShot Pro1
    By Photo-John in forum Camera News & Rumors
    Replies: 0
    Last Post: 02-09-2004, 02:55 PM
  5. Press Release: Canon PowerShot S1 IS
    By Photo-John in forum Camera News & Rumors
    Replies: 0
    Last Post: 02-09-2004, 01:09 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts