I just bought a 24-70 f/2.8L and I'm worried that it's a dud. Can someone please point me to a thread that explains how I can test to see if the lens is as sharp as it should be?
Thanks!
Dan
Danloc78 Member 86 posts Joined Nov 2009 More info | Dec 17, 2009 15:47 | #1 I just bought a 24-70 f/2.8L and I'm worried that it's a dud. Can someone please point me to a thread that explains how I can test to see if the lens is as sharp as it should be?
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twoshadows Liquid Nitrogen  7,342 posts Gallery: 52 photos Best ofs: 19 Likes: 4904 Joined Jul 2007 Location: Between the palms and the pines. More info | Dec 17, 2009 15:52 | #2 examples of lack of sharpness? This will help us help you better than shooting wall charts and focus tests. xgender.net
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Dec 17, 2009 16:00 | #3 Danloc78 wrote in post #9217845  I just bought a 24-70 f/2.8L and I'm worried that it's a dud. Can someone please point me to a thread that explains how I can test to see if the lens is as sharp as it should be? Thanks! Dan Why would you think its a dud? Post some sample photos. Jerome
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SiaoP Goldmember  1,406 posts Joined Dec 2009 Location: Bay Area More info | Dec 17, 2009 16:03 | #4 Try this: http://www.northlight-images.co.uk …s3_af_micoadjustment.html
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kwando Goldmember  1,345 posts Likes: 1 Joined Aug 2008 Location: Aurora, Co More info | Dec 17, 2009 18:14 | #5 subscribing... ~Simon~
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gasrocks Cream of the Crop  13,432 posts Likes: 2 Joined Mar 2005 Location: Portage, Wisconsin USA More info | Dec 17, 2009 18:17 | #6 Yes, most new lenses are duds, keep thinking that. But, seriously, why ask? Have you taken pix yet? How did they look? GEAR LIST
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Dec 17, 2009 22:26 | #7 gasrocks wrote in post #9218645 Yes, most new lenses are duds, keep thinking that. But, seriously, why ask? Have you taken pix yet? How did they look? Yeah, I've taken some test pics. Maybe it is just me being too picky for a $1300 lens?
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Dec 17, 2009 22:28 | #8 SiaoP wrote in post #9217941 Try this: http://www.northlight-images.co.uk …s3_af_micoadjustment.html It might just be you being too picky. I have a 1DmkIIn. I don't think I have the capability of AF adjustment?
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elContrarian Member 94 posts Joined Dec 2009 More info | Dec 17, 2009 22:46 | #9  Permanent banWhat keeps you from briefly saying what you think is wrong, before posting?
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Wilt Reader's Digest Condensed version of War and Peace [POTN Vol 1]  More info | Dec 17, 2009 23:18 | #10 Are you shooting with a tripod mounted camera, before you get too critical about your new lens? You need to give me OK to edit your image and repost! Keep POTN alive and well with member support https://photography-on-the.net/forum/donate.php
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Dec 18, 2009 15:32 | #11 Wilt wrote in post #9220243 Are you shooting with a tripod mounted camera, before you get too critical about your new lens? I didn't use a tripod, no. But i was shooting at shutter speeds of about 1600 or so. I'll post some...and going back thru the test pics, maybe I am being too critical. I guess I'm just a little paranoid after spending $1300.
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Dec 18, 2009 15:43 | #12 Danloc78 wrote in post #9224196 I didn't use a tripod, no. But i was shooting at shutter speeds of about 1600 or so. I'll post some...and going back thru the test pics, maybe I am being too critical. I guess I'm just a little paranoid after spending $1300. I put some shots up on my flickr page...still getting used to this forum and am not quite sure how to resize my images to post them here (the other forum I belonged to was based on filesize, not image size). http://www.flickr.com/photos/dlocurcio/ There are three test shots there. 0026 was shot at f/2.8, 1/1600, ISO200. 0028 was f/8, 1/200, ISO200. 0024 was f/2.8, 1/4000, ISO200...but isn't very sharp because the reed was blowing in the wind. For 0026 and 0028 I used spot focus right on the berry in the center of the frame. Upon further review it would appear that my claims are a bit bogus...  I need to shoot some people with the lens in good light. When I get some good results doing that I'll be happy. Check back here in a few days and I'll post some shots of people...
Jerome
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Lone-eagle Senior Member  269 posts Likes: 2 Joined Oct 2007 More info | Looks good to me Dale
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yeah, it's actually pretty strange. Since they were shot in RAW i sometimes use Picasa viewer to view them. And in there they looked darker and less sharp. When I opened them up in Adobe PS Elements...all of a sudden they were brighter and sharper...odd.
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prrs4me Senior Member 326 posts Joined Jul 2007 Location: Long Island, NY More info | Dec 18, 2009 18:41 | #15 It seems to me that all your pictures taken with the 24-70 are very sharp. I think people buy this lens, then read some of the negative comments and have buyers remorse. It's a great lens. Just have fun and take lots of pictures with it.
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