p.1 #1 · Images blurry. What may get wrong with this lens ?
Hi, I have a Tamron lens that when it is focused in LiveView mode (D7000) via either AF or MF, it shows a clear image in the back LCD. But the resulted image was always blurry when I pressed the shutter, even when I use a tripod and self-timer on the D7000. The camera works fine with all my other lenses. Anyone knows what may have got wrong in this lens?
(The problem also exist when not in LiveView mode.)
p.1 #8 · Images blurry. What may get wrong with this lens ?
As already mentioned, the common issues that cause this might be:
1) You have the stabilizer turned on -- it should be turned off on a tripod
2) You are not using mirror lockup, so the shutter slap is shaking the camera at the moment of exposure
3) Your images might be suffering from diffraction, which is when you use aperture numbers at or larger than f/16. It gets particularly bad when you reach the f/22 to f/32 range.
If you post a 100% crop of a troublesome image and post the camera settings you've used, it will help us diagnose what's wrong.
p.1 #9 · Images blurry. What may get wrong with this lens ?
Thanks all for your comment.
The lens I have problem with is a Tamron macro lens. It does not have VR. It used to be sharp until last year it fell down about 2 feet and hit the floor. Could the shutter be damaged?
p.1 #10 · Images blurry. What may get wrong with this lens ?
So you ask whether there could be something wrong with the lens in post #1 then finally tell people you dropped it a year ago and suddenly was no longer sharp?
p.1 #11 · Images blurry. What may get wrong with this lens ?
penghai wrote:
Thanks all for your comment.
The lens I have problem with is a Tamron macro lens. It does not have VR. It used to be sharp until last year it fell down about 2 feet and hit the floor. Could the shutter be damaged?
Eric
Looks like you've answered your own question. Lenses require precision alignment, and dropping it on the floor is enough to tweak the alignment of an element or two. You'll best be served by sending it to Tamron and having them check it out. I'd just tell them that the lens doesn't seem very sharp. They might very well cover it under the 6 year warranty if they don't find obvious impact damage.
p.1 #12 · Images blurry. What may get wrong with this lens ?
ckcarr wrote:
So you ask whether there could be something wrong with the lens in post #1 then finally tell people you dropped it a year ago and suddenly was no longer sharp?
p.1 #13 · Images blurry. What may get wrong with this lens ?
Common sense tells me that, if the image is perfectly sharp in live view but appears blurry after the shot, dropping the camera is not the source of the problem. Mirror slap or other source of camera movement, as has been mentioned, is a more likely explanation.
p.1 #14 · Images blurry. What may get wrong with this lens ?
Some examples and specifics would go a long way. Sounds like you probably just need to AF Fine Tune the tamron.
Dec 03, 2012 at 12:46 PM
Andre Labonte Offline • • • • • • Upload & Sell: Off
p.1 #15 · Images blurry. What may get wrong with this lens ?
penghai wrote:
Thanks all for your comment.
The lens I have problem with is a Tamron macro lens. It does not have VR. It used to be sharp until last year it fell down about 2 feet and hit the floor. Could the shutter be damaged?
Eric
If it looks like a duck, and quacks like a duck, it's a duck! You've stated the issue ... the fix is to send the lens in for repair.
p.1 #16 · Images blurry. What may get wrong with this lens ?
Got the lens back from Tamron and it is fixed. They just said adjust AF and focus. Didn't mentioned anything like impact damage. Thanks for those who helps.
Eric
Dec 07, 2012 at 12:09 AM
Andre Labonte Offline • • • • • • Upload & Sell: Off
p.1 #17 · Images blurry. What may get wrong with this lens ?
