my 70-200 VR not sharp at f/2.8

[Vodka]

anyone face the same problem??

shud i sent back 4 service??

[skywalker]

anyone face the same problem??

shud i sent back 4 service??

sure boh? This is supposed to be one of Nikon's sharpest lens :)

Check if u hv set the thingy to continuous mode

[Vodka]

i findout its sharp at f/4

[wasabi]

i findout its sharp at f/4

when u shoot runway it more sharp at F/4 , right?

[Falcone]

Maybe you can organize a TT and ask all those with 70-200 bring them over. Then you can test them all with ur camera.

I dun mind bringing as long as it around PJ / KL :redface::redface::redface:

[Vodka]

when u shoot runway it more sharp at F/4 , right?

ya ya.... its sharp at f/4

[Vodka]

Maybe you can organize a TT and ask all those with 70-200 bring them over. Then you can test them all with ur camera.

I dun mind bringing as long as it around PJ / KL :redface::redface::redface:

shud i send back to nikon lo....?

[zuhrie]

shud i send back to nikon lo....?

bro, if that gives you the peace of mind, go ahead. there's no harm doing it. at least you know it'll be thoroughly inspected. if you find after that it's still not sharp, at least you know that it's not the lens, but your technique using the lens that needs to be improved.

[galee]

bro, if that gives you the peace of mind, go ahead. there's no harm doing it. at least you know it'll be thoroughly inspected. if you find after that it's still not sharp, at least you know that it's not the lens, but your technique using the lens that needs to be improved.

Like this idea, it eliminates possibilities :)

[simonliu]

maybe able to give you better advise is you post some pictures here.

[Vodka]

my fren havent sent me the photo.... once get it will post here...

[Falcone]

shud i send back to nikon lo....?

Since it's still under warranty, go to nikon and :mad::mad::mad:

[Vodka]

ok ok.... may b nex week...

[Vodka]

its back... SWM & MR problem... its fixed !! yeah...

[Vodka]

****.... send it back to NIKON again.... still the same problem.... :(

[apocalypse]

****.... send it back to NIKON again.... still the same problem.... :(

Bro, you mean it's the same issue of out of focus even when you've sent it in to nikon? Gosh...

[Vodka]

i switch off VR slightly sharper.... " y pay so much 4 the stupid VR? " and it sharp at f/4 " y pay so much 4 the f/2.8 lens? "

haihhh....SWM & MR r repaired... the problem still there... :(

[andythology]

show us sample photos..

many times, alot ppl cant different OOF n sharpness. but i am not particularly saying u. cheers.

[Vodka]

soli to say tat those pic cannt post la... hav to wait the magazine publish first. * of coz the pic not been use la...

[bitbytes9]

not all lens sharp at wide open :rasta:

簡單的講同「球面像差」有關：
Spherical aberration
http://en.wikipedia.org/wiki/Spherical_aberration

先理解一下「球面像差」再想想收細光圈就是把"焦平面"孔徑縮少,使偏差了的光路阻擋從而減少了光暈,成像就會更為清晰!
http://article.xitek.com/showarticle.php?id=2346

光圈收得太細又會出現 繞射/衍射 Diffraction 影響成像!
http://hk.knowledge.yahoo.com/question/?qid=7006071102340&others=1

[Vodka]

thanks 4 the infor :)

[Vodka]

haih... my lens is ready 4 collect... tis time had change SWM, MR & VR.... haih.... :(

[bitbytes9]

haih... my lens is ready 4 collect... tis time had change SWM, MR & VR.... haih.... :(

:?:?:?...........

[Falcone]

Damn. Well at least they change something.

[Chrischong]

Have you tried the lens with other Nikon bodies? Certain camera+lens combinations might have issues.

Could the problem be back-focusing (i.e. the camera focusing behind the desired point of focus)?

I haven't got the 70-200VR but I find that my 80-200 f/2.8 ED isn't razor sharp at f/2.8 either. Although it's still sharper than any other telephoto lens I've used, it only starts to get really sharp once you reach f/3.5 to f/4 (like your lens, I suppose)

[Darren Tan]

Heard a lot of issue in this 70-200 vr lens. Sometime is not due to the lens nor the camera. Is the software we use to view RAW files. JPEG no issue.

I view RAW files in "Nikon View" and the phot turn out to be sharper than view it in Adobe Camera Raw. It is because "Nikon View" can read the settings set by the camera. (eg: Sharpening settings in camera.)

Correct me if I am wrong. :redface:

[chuah406]

scary to think that after plonking nearly rm6k for this lens, you still hv such issues. i thought it is "the" lens to go for ?? or is this an exception ?

[Vodka]

sastify now.... evthing is OK liao... hehee

[Ronan]

Volka, that's good to hear your lens is back in good shape....i haven't tried out my 70-200 @ f2.8 yet....:redface:

[Fishhook]

do report more, those who have tried report. thinking of getting a afd or afs second hand or the vr. if vr got problem i might as well go for afs. :D