just got a Tokina Aspherical 2.8 28~80mm

[919956g]

1) Well i took a pix using the largest APERature 2.8 cos i amtaking oudoor half body sjot ......turns out the subject also become very soft.(to the extent of blurry), i realise the problem stops when i push the f-stop to much higher say 8.0 and above.

2) Will such properties happen on canon L-lens....with --mm 2.8f ?

[ExplorerZ]

Originally Posted by 919956g 1) Well i took a pix using the largest APERature 2.8 cos i amtaking oudoor half body sjot ......turns out the subject also become very soft.(to the extent of blurry), i realise the problem stops when i push the f-stop to much higher say 8.0 and above. 2) Will such properties happen on canon L-lens....with --mm 2.8f ?

erm very blurry? my guess would be you focused on the wrong point.

[raptor84]

Might be wrong focus point.. handshake blur or not enough distance? Please post pics with exif info..

[eow]

Originally Posted by 919956g 1) Well i took a pix using the largest APERature 2.8 cos i amtaking oudoor half body sjot ......turns out the subject also become very soft.(to the extent of blurry), i realise the problem stops when i push the f-stop to much higher say 8.0 and above. 2) Will such properties happen on canon L-lens....with --mm 2.8f ?

check is there any fogging...

[919956g]

Sigh.......No trembling. No shakin, NO wrong focus point.

All the above has been 1) checked.....2) tried many times

[919956g]

1) Well i took a pix using the largest APERature 2.8 cos i amtaking oudoor half body sjot ......turns out the subject also become very soft.(to the extent of blurry), i realise the problem stops when i push the f-stop to much higher say 8.0 and above.
Tried a couple of Times, realise it really poccess such characteristics

anyone came across and care to share some useful stuff



2) Will such properties happen on canon L-lens....with --mm 2.8f ?

[quantize]

Maybe can post pic to show example?

f2.8 DOF is quite shallow, need to be more acurate at the focusing point.

Or maybe can check for things like back focusing?

[919956g]

Top:with aperature f2.8
Bottom:f6.3

the top pix seem much softer, pleeeeaaaasss its not handshake

Originally Posted by quantize Maybe can post pic to show example? f2.8 DOF is quite shallow, need to be more acurate at the focusing point. Or maybe can check for things like back focusing?

[Isaiahfortythirtyone]

links are broken

[919956g]

ya....i just tried ..its ok....u should b able to excess nnow

Originally Posted by Isaiahfortythirtyone links are broken

[dRebelXT]

reminded the Canon 50 f/1.8 I bought from a 'very nice' CS guy.
i always got icecream at f/1.8.

[ExplorerZ]

Originally Posted by 919956g ya....i just tried ..its ok....u should b able to excess nnow

still can't access

Quote: reminded the Canon 50 f/1.8 I bought from a 'very nice' CS guy. i always got icecream at f/1.8.

thats because 50/f1.8 is not a sharp lens @ f1.8 itself... same goes for the nikon which i own