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FORUMS Sample Photo Archives Lens Sample Photo Archive 
Thread started 04 Dec 2009 (Friday) 13:11
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Sigma 17-70mm F2.8-4 DC Macro OS

 
kfreels
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Sep 26, 2014 18:35 |  #1081

stever1000 wrote in post #17175900 (external link)
I have this lense and all my close up/macro shots are out of focus. when I try to take a picture of a bee or bug (stationary) on a flower, the lens won't focus properly so the bug is blurry when I zoom in

I use back button focusing on the center point (bug framed in center)

Does anyone have any suggestions on how I can get better macro shots? I chose this lens for this feature and so far it's failing me

Another problem is that you'll have a VERY thin DOF. Like in millimeters if shooting wide open. Stop down to f11 or f16 which is about where diffraction starts to make things soft. Also, be very aware if your own forward and back drifting. We're humans, not robots. We sway to keep balance and when you put a weight up at the top you'll do it more and not even be aware of it. Best practice is to use a tripod for this.


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kfreels
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Sep 26, 2014 18:41 |  #1082

OK. So I got my Tamron 24-70 f2.8 VC a couple months ago and I just can't give this lens up. lol


I am serious....and don't call me Shirley.
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stever1000
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Location: Vancouver, Canada
     
Oct 03, 2014 18:37 |  #1083

kfreels wrote in post #17179575 (external link)
Another problem is that you'll have a VERY thin DOF. Like in millimeters if shooting wide open. Stop down to f11 or f16 which is about where diffraction starts to make things soft. Also, be very aware if your own forward and back drifting. We're humans, not robots. We sway to keep balance and when you put a weight up at the top you'll do it more and not even be aware of it. Best practice is to use a tripod for this.

Thanks for this information, two things that I 100% overlooked. This should help a lot next time.

You're probably violating the minimum focusing distance. Move back a bit and see if that helps. You may need to crop the picture but at least it should be in focus.

I will try this as well, I always forget that I can crop to increase the size. Still learning a lot :) Thanks!




  
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Tukezu
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Nov 01, 2014 13:52 as a reply to  @ post 9458693 |  #1084

IMAGE: https://farm4.staticflickr.com/3950/15691377552_f85182845d_o.jpg
IMAGE LINK: https://flic.kr/p/pUAp​Sh  (external link) X20XEV_014_POTN (external link) by Tugezu (external link), on Flickr

flickr (external link)

  
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Alwayslearning
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Post edited over 3 years ago by Alwayslearning.
     
Jan 15, 2015 08:16 as a reply to  @ Tukezu's post |  #1085

IMAGE: http://cdn.ipernity.com/146/73/41/35747341.22ef3ca7.1024.jpg
IMAGE LINK: http://www.ipernity.co​m/doc/alwayslearning/3​5747341  (external link)
Silky Stream (external link) par Alwayslearning (external link), on ipernity

Peter
Canon 7D2 |, Canon EF 70-300mm f/4-5.6L IS USM, Sigma 17-70mm f/2.8-4 DC Macro OS HSM, Canon Speedlite 430EXII

  
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kamil ­ mittner
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Post edited over 2 years ago by kamil mittner.
     
May 05, 2016 11:27 |  #1086

Prague, ─îimice, Czech Republic


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Sigma 17-70mm F2.8-4 DC Macro OS
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