Budget Wide Angle Lens!

Discussion in 'Photography Forums' started by geofftelforduk, Aug 25, 2005.

  1. geofftelforduk

    geofftelforduk
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    Gents/Ladies,

    Unlike Mr Jones, I am after a cheap but effective wide angle lens! I currently have a Sigma 28 - 135 Aspherical Macro and a Canon 50mm f1.8 but I would love something wider!!

    I have a pretty low budget and was wondering what is the "best bang for buck" wide lens in the same way that the 50mm f1.8 is "best bang for buck" prime!

    Thanks for the help!
     
  2. Zone

    Zone
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    Really depends how much your “budget” really is!
    I’m in the same boat though needing something for landscape shots, which have always been of interest and also for close up group shots of friends and family.

    So far I’m inclined to go for the Sigma 15mm F2.8 EX Fish-eye.

    Reviews here
    7Day Shop for sale here
     
  3. sorbiegunner

    sorbiegunner
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    Surely the lens you mentioned is suitable for neither of the applications you mentioned. Fisheyes are really for special effects.
     
  4. Zone

    Zone
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    Not on a 20D as Geoff has or a 300D as I have taking the crop factor into account, the fisheye would just give a very nice wide angle view.
     
  5. sorbiegunner

    sorbiegunner
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    I was forgetting about crop factor :suicide: I would still have thought the curvature of the glass would give a fair bit of 'fisheye' even in the centre crop though.
     
  6. Zone

    Zone
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    I think on a 1.6 factor camera the effect would be less noticable but still give an extreme wide angle effect, on a 1.3 crop factor camera then the fish-eye distortion would be much more noticeable though and if I stuck it on one of my 35mm camera's I'd better double check my gut wasn't in shot :D
     
  7. sorbiegunner

    sorbiegunner
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    Your 15mm x1.6=24mm. A normal 24mm lens would have really bad barrel distortion if it wasn't for elements in the lens whose job it is to correct the curvature.
    A fisheye lens doesn't have these corrective elements because it's job is to produce extremely distorted images (for special effects).
    So what I would expect you would get from a fisheye on a 20D/300D is a tighter crop of a distorted image.
    I might be completely wrong here, but that's how I understand it.
     
  8. dolph

    dolph
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    Is the 18mm at the wide-end of the kit lens not wide enough....?

    It's not the best lens in the world but it's not that bad.
     
  9. Zone

    Zone
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    Not quite, using a rectangular fish-eye on a DSLR with say a 1.6 crop factor would result in a super wide image equivalent to that of 13/14mm lens on a 35mm camera or full frame sensor DSLR, yes there will be barrel distortion (I quite like that tbh) but there is also software available to correct this.
     
  10. sorbiegunner

    sorbiegunner
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    You've lost me now, you mentioned that the lens you are interested in is 15mm focal length, the crop factor is 1.6 so the angle of view should be equivalent to the angle of view of a 24mm lens on a 35mm system.
    I'm not saying you're wrong, just that I don't understand how a 1.6 crop factor willl give a15mm lens a 13/14mm lens equivalent. I don't even understand what you mean by a 13mm lens in 35mm terms. Help me out.
     
  11. Zone

    Zone
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    Sorry, its to do with the fish-eye effect, a standard 15mm lens on a 35mm camera gives a field of view of say 115/120 degrees, please dont quote me on that! So taking your 1.6 multiplication into it then yes thats equivalent to a 24mm lens.
    A 15mm rectanglar full frame Fish-eye gives a field of veiw of 180 degrees on a 35mm, much much wider, hence the crop factor can't really be applied in the same way!
     
  12. sorbiegunner

    sorbiegunner
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    so how's it going to take
    then?
     
  13. Zone

    Zone
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    :laugh: you've lost me now.

    Its to do with field of view, using the 1.6 crop factor on a lens capable of a 180 degree field of view will give say a 115/120 degree field of view similar to that of a standard 15mm wide angle lens on a 35mm, hence perfect for close up group shots and landscape photography.

    Have also just had a play with one in Jessops on my lunch break, fitted to a 350d the wide angle perspective is very nice though barrell distortion is very noticeable at the outer edges, but as I say I quite like that.
     
  14. sorbiegunner

    sorbiegunner
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    This has got me really intrigued now. I'm of to google in search of some sample images. It's not what I would have expected, I'd have expected extreme distortion, you live and learn.
     
  15. geofftelforduk

    geofftelforduk
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    Mmmm, how much would you expect to pay for something wider than 28mm?
     
  16. seany

    seany
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    I'd look at the new sigma 30mm prime, but it's not going to be anything like the price of the nifty. But it's a rated lens, only reason i've not bought is if i ever get a prime near that range it will be the 35L.
     
  17. seany

    seany
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  18. Zone

    Zone
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    Sean, Geoff already has a 28-135 zoom so he's after something wider I think.

    sorbiegunner, yes it is intriguing because like you that was my initial thinking that distortion would be a big problem.

    Just had a look on Sigma's site and the 15mm fish eye is 180 degree angle of view divide by 1.6 crop factor gives 112.5 degree aov, their 14mm wide angle lens has a 114 degree angle of view so you see using a fish eye on a Dslr with a crop factor of 1.6 turns it into quite a nice ultra wide angle lens.
     
  19. seany

    seany
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    Doh, i thought he said in his last post "past 28 mm" :rolleyes:

    The fish eye is around £300 Geoff

    what's your budget
     
  20. seany

    seany
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  21. severnsource

    severnsource
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    Well, if you're going to spend £300 or so on a prime lens, as people seem to be recommending, why not pay a bit more for the Canon EFS 10-22mm. It gives a real wide angle on small sensors and is a cracking lens as well.

    If the budget is really a problem you might want to look at the Tokina 19-35mm F3.5-4.5. Bristol cameras are offering it at £129. The quality will probably be a bit dubious, but it's the only cheapish wideangle I can find.

    Bill
     
  22. geofftelforduk

    geofftelforduk
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    Mmm, severnsource! I would love to see what the quality of that Tokina 19-35mm is!

    Thats a good price!!
     
  23. Zone

    Zone
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    Interesting review here putting it up against Canon 17-40L.
     
  24. severnsource

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    Actually we've missed the obvious. How about the 18-55mm kit lens? You should be able to get one for about £60-80 and it is slightly wider than the 20mm people have been discussing (about 29mm full frame equivalent). The quality is very acceptable for the price.

    Bill
     
  25. geofftelforduk

    geofftelforduk
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    Interesting! I am going to NYC in March next year, so I might just hold off and get something there! I do like the sound of that Tokina!!

    Have to say Zone, it doesnt look to bad in the review! THanks for that!
     
  26. Radiohead

    Radiohead
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    19mm on a 1.5x DSLR isn't wide, not even close. It's not even as wide as the not-very-wide-at-18mm kit lens.

    You'd be better looking at the new 10-20mm DG Sigma, the 11-18 Di Tamron, or the 12-24 Tokina. I've seen nothing from the 10-22 Canon to suggest that it's worth over £100 more than the Sigma.

    Worth noting that true ultra-wides bring with them a whole new technique due to the perspective they offer.
     
  27. geofftelforduk

    geofftelforduk
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    Radiohead, i sortta see what you are saying, but how much are you talkin for a Sigma 10-20mm?
     
  28. Radiohead

    Radiohead
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    £300 or so.
     
  29. geofftelforduk

    geofftelforduk
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    Mmm slightly out of budget at the mo in comparison with the Tokina 19-35mm! Might get it a little cheaper in NYC when I go next March!
     
  30. Radiohead

    Radiohead
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    It is, but the 19-35 isn't a wide-angle.
     

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