Sigma 70-200 Problem Update


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whitewolf

New Member
Oct 3, 2008
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#1
Hi guys

After all those tips, suggestion, help and reviews from all out there, I have finally put it to Practice and believe me have also found out what the problem was.
Firstly, I just had to get out there to practice what was suggested by all of you, but....sadly it still did not work out well. Disappointing....yes:cry: it was after all those time taking down notes and putting it to practice. I was about to put down my equipment for further review of notes and tips from u guys when, I decided to look for some reasons to blame the equipment than to blame myself soooo, took off the CPL (Polarising Filter) and started to give it a good clean up of the lens.
Took a picture and WHAM...:bsmilie:all expectations of the lens good, sharp money well spent was once again true to it's review. Hence I decided to take a few more shots, without the Filter, and every shot was Sharp and Good...surprised indeed:think:
Well anyways, story is getting to long...sorry, I found out that the Polarizing Filter, SteinZeiser, was the Culprit, confirmed that by putting it on and off.
Hence here are the results that I have after using all the tips n suggestions needed for a good shot. Once again Thank You All....
 

whitewolf

New Member
Oct 3, 2008
41
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#2
More of Pics from the Sigma...






Need all C&C pls:sweat:....tanx again guys:bsmilie: cheers
 

Rashkae

Senior Member
Nov 28, 2005
19,105
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#3
Aiyoo. You never told us you were using a cheap, second-rate, chop-shop con job filter!!!
 

geekbrains

New Member
Aug 3, 2008
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Hougang
www.geekbrains.com
#4
I guess your lens is still not sharp dude. Why not follow the instructions given in your earlier post and post some results without the filter.

PS: I see that you've shot these at the widest aperture and @ 200mm focal length. Go in manual mode and try to shoot at a shutter speed of 1/focal length as a minimum. At 200mm, a tiny little vibration can cause the image to be out of focus especially when you're using a thin DOF.
 

hoppie

New Member
Aug 13, 2009
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#5
yeah the pic ain't sharp, my 18-250 is sharper. could be becuz of shake or mis focus?
 

Octarine

Moderator
Staff member
Jan 3, 2008
12,538
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Pasir Ris
#7
Well anyways, story is getting to long...sorry, I found out that the Polarizing Filter, SteinZeiser, was the Culprit, confirmed that by putting it on and off.
Apart from the lousy crappy filter itself: when testing any equipment it's one of the basics to remove any additional gear to avoid side effects. No lens test ever was done using any filter in front.
 

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