November 28, 2014, 03:45:09 AM

Author Topic: TS-E 24mm Poor Performance - Take 2  (Read 620 times)

wearle

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TS-E 24mm Poor Performance - Take 2
« on: January 17, 2014, 09:56:25 PM »
To all,

I appreciate all your comments in the last post.   

I went back to the hill and took some daylight images.  Please, take a close look at the image below, especially the left-hand side.  I focused on the road near the center.  This would be considered infinity which is what the lens was indicating.  The lens has both the tilt and shift at the zero position.    There was no wind.  I used a sturdy tripod and a remote release.  Thoroughly looking over the image, I would have to say this is the worst performing lens I've ever seen.  Only a small area around the center is focused.  The left had side is horrendously out of focus.  At these distances, everything should be in sharp focus, except perhaps the closest few feet.  As mentioned before, focusing at infinity at f/4.0 with a 24mm should yield a plane of sharp focus from 16 feet to infinity.

I would love to here your comments based on this new image.

Emigrant hill non-shifted TS-E 24mm
http://www.northwest-landscapes.com/images/testing/ts-e_24mm_non-shifted2.jpg

Perhaps a lens element or two is out of alignment.  I don't know, but something is definitely wrong with it.

Thanks,

Wade

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TS-E 24mm Poor Performance - Take 2
« on: January 17, 2014, 09:56:25 PM »

wearle

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Re: TS-E 24mm Poor Performance - Take 2
« Reply #1 on: January 17, 2014, 10:03:59 PM »
To all,

I would like to include one more image.  This was stopped down to f/8.0 which is supposed to be the sweet spot of the lens.  The left side is still really soft (i.e. out of focus).

http://www.northwest-landscapes.com/images/testing/ts-e_24mm_non-shifted_f8.jpg

Thanks for looking,

Wade

tolusina

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Re: TS-E 24mm Poor Performance - Take 2
« Reply #2 on: January 17, 2014, 11:30:13 PM »
I agree, left side is awful, worse at f4 than at f8.
Right side is none too sharp either, though not as bad as the left, Again, better at f8.
40 on 6

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Re: TS-E 24mm Poor Performance - Take 2
« Reply #2 on: January 17, 2014, 11:30:13 PM »