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08-08-2009, 12:36 AM   #16
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QuoteOriginally posted by Igilligan Quote
Hey how did my name get pulled into an AF lens thread...??? Without any Russian names??? This can't be right!
Ack, my mistake, I mistyped Jay as Gus... I blame lack of sleep plus a day of slavery at school. My bad, you two. I meant to say BOTH your lenses always look perfect anyway.

08-08-2009, 12:49 AM   #17
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QuoteOriginally posted by happyant Quote
A few more, all at 200mm f2.8

How do they look sharpness wise?
Yeah, I get similar results to these - haziness seems to be the norm here, though Jay's wide open captures are a world sharper and contrastier (a neology, I know) than these (and mine).

Hence my concern.
Jay, do you get any soft wide open results as these?
08-08-2009, 02:11 AM   #18
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Other f/2.8 examples

I have used this lens at a concert event today and have come up with these results shooting at f/2.8:







Not too bad under these low-light conditions... all at ISO 1600 with some NR by PS.
More to follow...
08-08-2009, 05:38 AM   #19
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Some more from this indoor event...

All captured at f/2.8 from 130-200mm with ISO 1600:





I note slight green hazy halo above her hair on my screen - not there in real life when taking the shot...






Comments?

08-08-2009, 07:01 AM   #20
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The photos looks nice and quite well composed, but I really cant tell whether the lens is good/not from these shots since these are less than optimum conditions. my 2c
08-08-2009, 07:33 AM   #21
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You're right Andi, and I haven't posted 100% crops - a little lazy at the moment, or maybe just exhausted...

I'm just keen to know, from anyone who may know, under what conditions would such a lens produce a hazy image when used wide open?
08-08-2009, 12:57 PM   #22
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QuoteOriginally posted by Ash Quote
Yeah, I get similar results to these - haziness seems to be the norm here, though Jay's wide open captures are a world sharper and contrastier (a neology, I know) than these (and mine).

Hence my concern.
Jay, do you get any soft wide open results as these?
.

My copy wasn't really 'soft' wide-open at 200mm - softer than f/4, but most
of my missed shots had to do with the system locking on a point in the foreground
or background (not the same as FF/BF.) All my long telephotos have that
tendency wide-open, it's just tougher to nail the shot.

Here are some 200mm f/2.8 shots, some of these are cropped a bit:




here I think focus locked on blossom petal in foreground




Crop:



08-08-2009, 03:58 PM   #23
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this is an action shot at 200mm 2.8...pretty sharp i reckon!!
AF is spot on.

Attached Images
 
08-08-2009, 10:29 PM   #24
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For the results one can get from this big lens, it certainly is value for money.

Thanks for all your contributions.
08-09-2009, 02:58 AM   #25
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more pics at 200mm wide open.
The 2nd shot is 100% crop of the 1st.....no other shots are cropped.
No PP either. All shots hand held.
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08-10-2009, 03:24 AM   #26
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This is a little OT but what sort of tele-converter will work with the Tamron 70-200?

Will the Sigma 1.4x Tele Converter EX DG APO Ptx work? If so, the 200mm tele-end will become 200 x 1.4 = 280mm. Is the Tamron 70-200mm with TC still sharper than say DA50-300?
08-10-2009, 03:32 AM   #27
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QuoteOriginally posted by raider Quote
This is a little OT but what sort of tele-converter will work with the Tamron 70-200?

Will the Sigma 1.4x Tele Converter EX DG APO Ptx work? If so, the 200mm tele-end will become 200 x 1.4 = 280mm. Is the Tamron 70-200mm with TC still sharper than say DA50-300?
G'day Raider.
I have the Tamron Pz-AF 1.4x SP teleconverter, which is a screw-drive TC that works very well with the Tamron 70-200.

AFAIK, the Sigma TC will only work with the older Sigma 70-200 (ie. not the HSM II) an there is no HSM TC produced yet, but wouldn't THAT be great...

I asked myself that question you asked about the 70-200+TC being sharper or not than the 55-300, and I've come to appreciate they're in different leagues - the 70-200+TC becomes a 100-280 f/4 approximately and produces images that are comparatively as sharp or sharper at equivalent apertures to the 55-300, esp. at f/5.6-8, where the Tamron appears to render colour contrast and the 3D effect just that little bit better. But as mentioned in another thread, if comparing at f/8, there's little between them.

The DA 55-300 really is a good consumer lens - I'm going to be keeping mine for when I don't want to lug around that bazooka of a lens.
08-10-2009, 03:57 AM   #28
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Hi Ash. I don't quite understand when u say the Sigma TC will only work with the older sigma 70-200 without HSM. The Tamron 70-200 has no HSM and is a screw driven lens. Won't this work with the sigma TC or the sigma TC has different contacts and such which prevent the Tamron from being recognized?

Yes. I quite like my Tamron 70-200 but it is a huge lens to carry around. That is the only weakness I would say.
08-10-2009, 04:07 AM   #29
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I'd have to refer to the more esteemed forum members to answer whether Sigma AF TCs would allow AF with the Tamron 70-200 - I don't have any experience with that combo.

As for the Tammy's weight - to me this is no weakness, it's simply part and parcel of desiring a fast telephoto zoom...
08-10-2009, 03:08 PM   #30
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i use the sigma 1.4x on the Tamron 70-200 it works ok no dramas just the usual af hunt but it does work
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