i want a big lens - which one ??

Discussion in 'Photography Forums' started by cheapaschips1, Nov 27, 2010.

  1. cheapaschips1

    cheapaschips1
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    Hi,
    I got my sony alpha 500 a few weeks ago, picked up the tamron 70-300 with it on the jessops deal. since then i've picked up a 50mm F1.7 prime and a 35-70 mini beercan. had some super photo's from it, but want to try my hand at wildlife and birds so want something longer than a 300.
    i've bee nscouring ebay and it seems sigma's are readily available, but what flavour do i go for and whats the right price ?
    400 prime? or 135-400 or spend a wodge and try for a 500 ? i'm not looknig to spend more then £200 unless i reall wont get what i'm after.
    i was originally planning to get a 70-210 beer can. are they really that good?
    also would a proper teleconverter with my 300 do a better job than a 400 prime or zoom ?

    thanks for any advice

    cheap
     
  2. ncmoody

    ncmoody
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  3. weetsie

    weetsie
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    no

    good teleconverters are expensive but even they degrade image quality and with a 1.4x converter you would be looking at an already soft lens at 300mm, even softer for using a TC and at 420mm you will be forced to shoot wide open (soft) due to F/8 aperture most of the time.

    tc are most useful on fast lenses IMO.
     
    Last edited: Nov 27, 2010
  4. cheapaschips1

    cheapaschips1
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    thanks for the swift responses,
    with the M42 fitting, do the adpotrs work well then ? is there a better adaptor?
    i've seen some with AF chips on them.

    Thanks
     
  5. weetsie

    weetsie
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    correct me if im wrong but all the AF chips do is focus confirm when you manually focus.

    if you buy a none AF lens however you may find they are quite nice to use, unlike AF lenses where manual focus is very much a secondary thought.
     
  6. shotokan101

    shotokan101
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    Spot on Ryan - the chipped adapters just allow AF confirmation to show in viewfinder/LCD and some will "beep" too - also remember you will be shooting in full Manual mode for exposure too :)

    Shhoting in auto at over 300 "just isn't cheap" :(

    Jim
     

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