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Question of the Day: What is your non-negotiable item, device, or app for international travel?
Help with new lens
- Thread starter marine1
- Start date
ldmelsa
Executive Member
marine1
Honorary Master
Interesting, thanks, the Sigma looks better but dont know if thats correct.
koffiejunkie
Executive Member
This is a rebranded Tamron. Check:
Sony DT 18-250mm F3.5-6.3
Tamron AF18-250mm F/3.5-6.3 Di-II LD Aspherical (IF) Macro
and, for good measure:
Pentax DA 18-250mm F3.5-6.3 ED AL [IF]
Notice they all look the same. Little details, like the AF/MF switch, the positions of the distance/zoom markings, etc.
If it was a bad lens, Sony and Pentax wouldn't badge-engineer it.
That said, I don't have experience with either - just pointing out the above. Here are two reviews though. Not done on Sony, but at least they're done on the same body, so the results can be compared fairly:
Tamron AF 18-250mm f/3.5-6.3 Di II LD Aspherical [IF] macro (Canon) - Lens Test Report / Review
Sigma Sigma AF 18-200mm f/3.5-6.3 DC - Lab Test Report / Review
Going by those reviews, they look very comparable. The Tammy has worse barrel distortion on the wide end, and slightly worse vignetting, but has a longer range.
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marine1
Honorary Master
Thanks Koffie. The Sony is much more expensive so would like to know why that is. Cannot be just because it has a Sony badge.
marine1
Honorary Master
How awesome is that Sony site? Lets you look mat the lens in 3D
koffiejunkie
Executive Member
Yip, over here the Sony is about £100 more expensive than the Tamron. So if you consider that lens, rather just get the Tamron.
koffiejunkie
Executive Member
Maybe consider the Tamron AF18-200mm F/3.5-6.3 XR Di-II LD Aspherical (IF) Macro as a more direct competitor to the Sigma.
marine1
Honorary Master
Who stocks Tamron in SA? Thanks Koffie
koffiejunkie
Executive Member
BTW, I posted the wrong report for the Sigma in my original post (18-125). Here's the correct one: Sigma Sigma AF 18-200mm f/3.5-6.3 DC - Lab Test Report / Review
marine1
Honorary Master
Koffie, in your expert opinion between the three makes of lenses, which one would you go for, solely based on make.
marine1
Honorary Master
Regarding the Sigma: AF accuracy leaves something to be desired with this lens especially towards the long end of the zoom range.
koffiejunkie
Executive Member
No idea.
What would I go for? I'd wait for Canon's 18-200 IS
I don't expect stellar AF performance of either. They're slow at the long end, and both are screw driven, so they're bound not to be too great there. If you need to shoot in situations where you need fast accurate AF at 200mm, you should be looking at something like the Sony 70-200mm F2.8 G or Sigma APO 70-200mm F2.8 EX DG MACRO HSM.
But given these two reviews, you won't lose anything by going for the Sigma:
Tamron AF 18-200mm f/3.5-6.3 Di II LD Aspherical (IF) XR macro - Test Report / Review
Sigma AF 18-200mm f/3.5-6.3 DC - Lab Test Report / Review
koffiejunkie
Executive Member
I'd get bwana's opinion on the Sigma - he actually has one.
I have a Sigma but not one of those.
marine1
Honorary Master
Thanks so much
koffiejunkie
Executive Member
I have a Sigma but not one of those.
bummer - my mistake. I just remembered yours is the the 28 to something model
marine1
Honorary Master
LOL, yeah just find that to be a great all round "travel" lens. That 70-300 is awesome, must cost a packet though. I have the 150-500 Sigma and the 105mm Macro Sigma, maybe I should stick with them
28-300.bummer - my mistake. I just remembered yours is the the 28 to something model
marine1
Honorary Master
28-300?? Thats a great lens. Damn it they dont make one for Sony 