Results 1 to 7 of 7

Thread: Difference beween SLR zoom and compact camera optical zoom

  1. #1

    Join Date
    Mar 2013
    Location
    Chennai, India
    Posts
    25
    Real Name
    Thilak

    Difference beween SLR zoom and compact camera optical zoom

    I need a clarification on zoom ranges between the SLR and Compact cameras.

    I'm using nikon 55-300 mm which is 5.5 x

    But I'm seeing point and shoot cameras having zoom ranges greater than 15x

    Whats the exact difference in the zoom ranges between these 2 cams.

    Thank you,
    Thilak

  2. #2
    Black Pearl's Avatar
    Join Date
    Jan 2011
    Location
    Whitburn, Sunderland
    Posts
    2,422
    Real Name
    Robin

    Re: Difference beween SLR zoom and compact camera optical zoom

    9.5454545454545455

  3. #3
    dje's Avatar
    Join Date
    May 2011
    Location
    Brisbane Australia
    Posts
    4,636
    Real Name
    Dave Ellis

    Re: Difference beween SLR zoom and compact camera optical zoom

    Thilak the concept of zoom range as a magnification factor from shortest to longest focal length is the same for DSLR's and Compacts. It's just not used much for DSLR's, people tend to talk in terms of focal length range in mm.

    Compact cameras have much smaller sensors so their lenses can be much smaller. This makes it easier to design lenses with larger zoom ranges. A compact with x 15 zoom would typically have an actual focal length range of say 6 - 90 mm.

    Dave

  4. #4
    Moderator Manfred M's Avatar
    Join Date
    Mar 2012
    Location
    Ottawa, Canada
    Posts
    21,925
    Real Name
    Manfred Mueller

    Re: Difference beween SLR zoom and compact camera optical zoom

    The other comment that needs to be considered is that the lenses in compact cameras are fairly simple beasts and they do introduce a lot more distortion than even a lens like the one you are looking at. Top of the line pro zoom lenses never have a zoom factor above 3x, just because of some of the optical compromises (i.e. image quality) that would have to be made.

  5. #5

    Join Date
    Apr 2012
    Location
    Dunedin New Zealand
    Posts
    2,697
    Real Name
    J stands for John

    Re: Difference beween SLR zoom and compact camera optical zoom

    Though I think it is fair to say that the average person will not notice any great loss of IQ from the greater zoom range lenses... we know it is happening but the state of the art is such that one has to look hard to notice the problem. So if you want to go for the 18-200 I wouldn't hesitate, particularly if it is a Nikon lens ... I currently use a 14-140 on MFT. Convenience over absolute IQ

  6. #6
    CP140's Avatar
    Join Date
    Nov 2012
    Location
    Greater Vancouver Area
    Posts
    382
    Real Name
    Martin

    Re: Difference beween SLR zoom and compact camera optical zoom

    Every zoom lens is a compromise. The greater the zoom range the greater the compromise. Yes, money and good design can minimize the compromises.... but at some point an expensive compromise becomes more expensive than two cheaper lesser compromises.

  7. #7

    Join Date
    Apr 2012
    Location
    Dunedin New Zealand
    Posts
    2,697
    Real Name
    J stands for John

    Re: Difference beween SLR zoom and compact camera optical zoom

    Quote Originally Posted by CP140 View Post
    Every zoom lens is a compromise. The greater the zoom range the greater the compromise. Yes, money and good design can minimize the compromises.... but at some point an expensive compromise becomes more expensive than two cheaper lesser compromises.
    You pay for the tool you want. I wanted a large sensor bridge camera which didn't weigh a ton.

Posting Permissions

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