it think this topic have been polled and discussed before.
for me its depends on individual lenses and brands
some 3rd party lenses are a good buy but not others
sometimes original lesnes do not perform as well as 3rd party ones
it all depends.
I have been searching for the topic but no avail. So i ask again.
I have a D90 using Tamron 18-270mm, Almost all the picture I took is slightly blur.
I uses my Kits lens 18-105mm the picture is fine.:dunno:
Is it the 18-270mm no good?????
Finally Still deciding whether to get a Tamron 17-50mm or Nikon 17-50mm...
What is your shutter speed when using the 18-270?Or maybe your 18-270 has dust/fungus or haze in it,so you claim its blur?
here is an older similar poll / post
http://www.clubsnap.com/forums/showthread.php?t=2549
for me i use both. 3rd party for lack of alternative from original, else usually it will be original lenses.
ryan
Here is the picture I took and you can see the slightly blur at the building.
Thanks for the links.:thumbsup:
did u use tripod for the shots? although it's 3rd party lens, the IQ shouldnt be that poor..
Could be a thousand and one reasons.
-Did you buy your lens used or new? Might be something wrong with the lens.
- Might be a very unstable tripod. This lens is a lot heavier than your kit lens. So if the tripod is unstable, the weight of this lens may cause more instability, especially when there is wind. Also cars driving by can also affect the vibrations in the tripod.
- from the exit, I see F11 and 15 seconds for pic 1. So we can rule out small aperture diffraction.
I think the comparison is not good. Choosing quality comparing a kit lens and a tamron 17-50mm, I think the tammy will be the winner. So the poll should be more precised on the lens itself rather than just the brand.
so you mean all the pic i took from tammy is good and kit lens will be more blur!!! :bigeyes:
That not wat I said. Your image taken with whch lens Tamron 18-270mm f?? or Tamron 17-50mm f2.8? Ican tell you that IQ for these 2 lens is worlds apart.
all the pic I took was using Tamron 18-270mm F9-F11, you can check with EXIF