Quantcast Any differences between an internal and external lens??

+ Reply to Thread
Results 1 to 3 of 3
  1. #1
    Junior Member
    Join Date
    May 2007
    Posts
    4
    Rep Power
    0

    Default Any differences between an internal and external lens??

    I am just looking at buying the Sony W90/80 or T20. Both cameras seem to have exactly the same functions so I am leaning toward the T20 becuase I dropped my old camera on the lens which had an external lens and it broke it . I thought that the T20 could solve this to some extent as its lens is internal. Just wondering if anything is sacrified in having an internal lens opposed to an external one like on the W90.

    Thanks

  2. #2
    Site Admin
    Join Date
    Feb 2005
    Location
    Cincinnati, OH
    Posts
    3,065
    Rep Power
    26

    Default Re: Any differences between an internal and external lens??

    Typically the internal lenses aren't as good because usually the light path has to be turned 90 degrees to hit the sensor. I'm not sure if the Sony's are like this. However, it is a sure thing that the internal lens is more complex than one that is allowed to extend out from the body. On the T20, the main purpose of the internal zoom mechanism is to keep the camera slim and sleek - there's no optical advantage.
    Best Regards,
    Ben

    Canon EOS Digital Rebel XTi
    Canon Powershot G7
    Pentax Optio W10
    Canon Powershot A95

    www.DigitalCameraReview.com | www.Brighthand.com | www.NotebookReview.com | www.SpotStop.com | www.TabletPCReview.com

  3. #3
    Junior Member
    Join Date
    Jul 2007
    Location
    UK
    Posts
    1
    Rep Power
    0

    Default Re: Any differences between an internal and external lens??

    Most of the internal lenses I have seen have are start at F3.5 which is 'slower' than most of the external lenses (typically F2.8). Basically, this refers to how much 'light' the camera can take in. In situations where the scene is brightly lit, there will be virtually no difference between internal or external lenses. However, during darker scenes (i.e. late afternoon or dawn), external lenses have an advantage because they don't as high of an ISO as internal lenses. Bearing in mind this will be dependant on power of the flash & how far away your subjects are.

    I used to own a Sony DSC-T9 and 9000+ photos later, I'd have to say if you're taking close pictures of people (i.e 2-4 & ~2m away) your pictures will turn out great @ night. Group photos however, will become nosier (due to ISO) but still fairly nice for 4"x6" prints. Day photos are pretty comparable to external lenses.

    I have dropped my camera while its been on and it just kept on working, so that's a plus. But ultimately it comes down to what you want the camera for, normal day photos + few night club shots, I don't think you'll really see much difference. If you want to see your photos at full resolution and are really worried about image quality and noise, I'd probably go for the external lens cameras.

    Hope that helps,

    Madkat

 

 

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Any differences between to W80 and 90?
    By mike_hill2107 in forum Sony
    Replies: 1
    Last Post: 05-07-2007, 09:38 AM
  2. Seagate Portable External Hard Drive Review
    By Ben Stafford in forum Digital Camera News
    Replies: 0
    Last Post: 04-21-2006, 09:00 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
All times are GMT -5. The time now is 09:18 PM.
Powered by vBulletin® Version 4.2.2
Copyright © 2014 vBulletin Solutions, Inc. All rights reserved.
Search Engine Optimization by vBSEO 3.6.1