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Need advice on fast telephoto lens

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oddesy
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Need advice on fast telephoto lens

Unread postby oddesy » Wed Jan 06, 2010 6:49 pm

For a very long time now I have wanted a fast telephoto lens, mainly because of the image quality that comes with it and recently it looks like I may be able to get one. :dance:


All good, i then started reading review after review and that's when it went all bad :doh: :doh: information and opinion overload :wall:

I narrowed it down to the 70-200mm f/2.8 Di LD (IF) Macro AF Lens for Pentax AF or the sigma 70-200mm f/2.8 II EX DG APO Macro HSM AF Lens for Pentax. now most reviews rave bout the tamrons image quality but hate the foccusing speed while the sigma has very good focussing speed but at 200mm is softer and has bad CA. some comments would be great as to which is more important IQ, or focus speed and ultimately which one i should get
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Re: Need advice on fast telephoto lens

Unread postby bert » Wed Jan 06, 2010 8:53 pm

Depends
If you to capture animals and birds in flight and sprinting its important
But otherwise i would go for the best glass and image

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Re: Need advice on fast telephoto lens

Unread postby oddesy » Wed Jan 06, 2010 9:09 pm

Thanks bert :thumbs_up: leaning more to the tamron now :hmz:
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Re: Need advice on fast telephoto lens

Unread postby bert » Wed Jan 06, 2010 9:27 pm

Friend of mine, a real good photographer, owns Nikon but uses the Tamron
Loves it.
But he is more into landscaping and portraits

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Re: Need advice on fast telephoto lens

Unread postby Josh of the Bushveld » Wed Jan 06, 2010 9:46 pm

I know this post isn't really useful, but I couldn't resist.

That's why I went Nikon. Nikon makes an excellent 70-200mm F2.8. I.e., one can't go wrong with Nikon glass (or Canon I guess).

But then again, I'm biased and need to defend my position ;) (I went Nikon for a whole lot of other reasons)
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Re: Need advice on fast telephoto lens

Unread postby oddesy » Wed Jan 06, 2010 9:49 pm

makes the tamron sound even better bert! :D

JL :thumbs_up: I have been looking at the positives and negatives of sticking with pentax or changing to canon for a few days and pentax won 8) One review claimed that the tamron was even better than the nikon :wink: :lol:
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Re: Need advice on fast telephoto lens

Unread postby Josh of the Bushveld » Wed Jan 06, 2010 9:51 pm

Cool!
I was really just poking fun.
At this stage, I'm sticking to Nikon glass (with a Kenko t/c). I'm also not planning on buying any new/more lenses soon.
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Re: Need advice on fast telephoto lens

Unread postby oddesy » Wed Jan 06, 2010 9:53 pm

I know :thumbs_up: i could not resist either :lol:

what is your experience with using Tc's? would be interested to hear how it affects your focussing and IQ :) I wish lenses were not so expensive! :roll:
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Re: Need advice on fast telephoto lens

Unread postby Josh of the Bushveld » Wed Jan 06, 2010 10:00 pm

yeah, I do too. But then it might be less worthwhile :P

To be frank, if I understood completely what IQ is, I might be able to tell you.
Also, when I am busy with the camera taking photos, I get lazy and don't really feel like doing comparisons.

I haven't had issues auto-focusing with the t/c (that I've noticed, but I've also used the combination of lens and t/c very little on a body that will autofocus it)
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Re: Need advice on fast telephoto lens

Unread postby Scipio » Wed Jan 06, 2010 10:04 pm

Having a Pentax, why not a Pentax Lens, 120-400?? or is that not telephoto :whistle:

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Re: Need advice on fast telephoto lens

Unread postby oddesy » Thu Jan 07, 2010 10:15 am

:thumbs_up: it is scips, i have been looking for a fast lens, F2.8 but i wish i could get the 120-400 as well :pray:
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Re: Need advice on fast telephoto lens

Unread postby bert » Thu Jan 07, 2010 10:31 am


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Re: Need advice on fast telephoto lens

Unread postby DuQues » Thu Jan 07, 2010 10:38 am

I've posted it before, so don't bite my head off, but keep an eye on the bokeh of the lens as well.
I often find that Sigma lenses have a nasty stripy bokeh which distracts from the subject.
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Re: Need advice on fast telephoto lens

Unread postby Josh of the Bushveld » Thu Jan 07, 2010 10:40 am

DuQues wrote:I've posted it before, so don't bite my head off, but keep an eye on the bokeh of the lens as well.
I often find that Sigma lenses have a nasty stripy bokeh which distracts from the subject.

That to do with the shape of the aperture?
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Re: Need advice on fast telephoto lens

Unread postby DuQues » Thu Jan 07, 2010 10:44 am

Did you click the link? It's not aperture related. Well, it is a bit of course, wide open you'll see it, stopped down not...
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