Results 1 to 14 of 14

Thread: when u're testing lens

  1. #1

    Default when u're testing lens

    i'm hoping to get a prime 50mm 1.8 but i'm unsure of what i should be looking for when buying a lens brand new from shop or 2nd hand from csers.

    i read about alignment but what does it really mean?

    besides alignment are there any other stuff i should look out for? should i snap some photos and view them in my 2.5" lcd? or should i just try out the AF and MF?

  2. #2
    Member/Tangshooter zaxh81's Avatar
    Join Date
    Jan 2003
    Location
    Earth
    Posts
    4,340

    Default Re: when u're testing lens

    you should bring your laptop go,bigger lcd the better.
    Download then view 100% then see if sharp anot.


  3. #3

    Default Re: when u're testing lens

    wah seriously must be so kiasu?

    Quote Originally Posted by zaxh81
    you should bring your laptop go,bigger lcd the better.
    Download then view 100% then see if sharp anot.

  4. #4
    Deregistered
    Join Date
    Feb 2005
    Location
    Wild wild west
    Posts
    614

    Default Re: when u're testing lens

    Quote Originally Posted by zaxh81
    you should bring your laptop go,bigger lcd the better.
    Download then view 100% then see if sharp anot.
    ya .... you make a point!
    i buying my dream lens soon .... can i borrow your 17" laptop?

  5. #5

    Default Re: when u're testing lens

    dont have to bother so much

    just buy and use

  6. #6

    Default Re: when u're testing lens

    it is not necessary to bring notebook.

    for exterior checks,
    - check for dust
    - check for scratches on elements and barrel

    for mechanical checks,
    - test for sharpness,
    take a picture of the lens box with camera on table. zoom in on the words of lens box to see if edges are sharp.

    - test for focusing,
    take a picture of the lens box at an angle focusing at a specific word with maximum aperture. zoom in and check if the word is sharp. check before and after the word for out of focus.

  7. #7
    Member/Tangshooter zaxh81's Avatar
    Join Date
    Jan 2003
    Location
    Earth
    Posts
    4,340

    Default Re: when u're testing lens

    just joking lah,buy that time ask for 2 days warrenty then go home test lor.
    But i will check for internal dust specks etc..


  8. #8
    Senior Member denniskee's Avatar
    Join Date
    Oct 2003
    Location
    bukit batok
    Posts
    5,467

    Default Re: when u're testing lens

    1) that was what i did, not buying lens but dslr. got my buddy to bring down his laptop.

    2) if buying from shop, if they dont mind, shot the words on the box, view in the desktop in the shop lor.

    3) if buying 2nd hand, shoot, go back home and check in your own computer, feel comfortable, than buy, this is what i do if option (1) not available. normally, it is ok with the seller. yet to come across one that is unwilling to wait for 1-2days. but maike sure you tell the seller this arrange before the meeting to view the lens.
    Last edited by denniskee; 15th February 2006 at 07:22 AM.
    photography makes one sees things from all angles.

  9. #9

    Default Re: when u're testing lens

    What i'f i'musing a film camera? would be kinda difficult ..
    Furry Photos - Photography for the Modern Pet

  10. #10
    Senior Member
    Join Date
    Jan 2005
    Location
    Pasir Ris, Singapore
    Posts
    14,002

    Default Re: when u're testing lens

    Quote Originally Posted by raptor84
    What i'f i'musing a film camera? would be kinda difficult ..
    I'm using film SLR so the only way to do just that is to check the exterior of the lens as described earlier on. Also remove front and rear lens caps and then view it against a light source to check for any dusts or fungus internally.
    Canon EOS 5D, 24-70 f/4 L IS, 50 f/1.2 L, 70-300 f/4-5.6 L IS, 600EX-RT. Sigma 12-24 f/4.5-5.6 EX.

  11. #11

    Default Re: when u're testing lens

    Quote Originally Posted by denniskee
    3) if buying 2nd hand, shoot, go back home and check in your own computer, feel comfortable, than buy, this is what i do if option (1) not available. normally, it is ok with the seller. yet to come across one that is unwilling to wait for 1-2days. but maike sure you tell the seller this arrange before the meeting to view the lens.
    Personally, unless you came to my place, I wouldn't be willing to incur double transport cost.
    My Personal Folio (of random events and things)

  12. #12
    Senior Member
    Join Date
    Oct 2005
    Location
    1.45N 103.83E
    Posts
    3,204

    Default Re: when u're testing lens

    If buy new, there's the 1year warranty so no worries. Just look out for scratch marks if any, dust inside and outside and also look through the Lens for condition of the glass.


    If 2nd hand, either bring laptop along or look for above conditions. If seller agrees to gives 2 days grantee, then can do the test at home. To be fair, only for sharpness of lens lor. Physical condition should be checked on the spot.

    I ever bought a 2nd hand lens and got a few spots in the lens. I bargained for additional discounts and get the lens cleaned and its perfect now. I specifiy to the seller that the discount is for cleaning the lens. Good seller and i got a good bargain in the end.

  13. #13

    Default Re: when u're testing lens

    thanks peeps! i understand now

  14. #14
    Senior Member
    Join Date
    Jan 2005
    Location
    Pasir Ris, Singapore
    Posts
    14,002

    Default Re: when u're testing lens

    Gd luck dude
    Canon EOS 5D, 24-70 f/4 L IS, 50 f/1.2 L, 70-300 f/4-5.6 L IS, 600EX-RT. Sigma 12-24 f/4.5-5.6 EX.

Bookmarks

Posting Permissions

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