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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 23 May 2010 (Sunday) 22:19
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HOW DO I SHOOT WIDE OPEN ON 50MM 1.8 ?!

 
MLphoto
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May 23, 2010 22:19 |  #1

HOW?!?!!!

okay, now seriously... I noticed that when shooting with my 50mm 1.8 II when I'm trying to capture something from a distance It will not capture it sharply but rather blur everything... Today I was photographing a car show and 90% of my pictures are all blured and wouldn't focus on the car. When it does focus it's sharp but I don't know what I'm doing wrong.

I'm considering selling my 17-85 and 50mm and just buying the new sigma 17-70 II


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Cesium
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May 23, 2010 22:20 |  #2

You're trying to avoid focusing problems. And buying a Sigma is your solution?

:lol:




  
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Skrim17
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May 23, 2010 22:24 |  #3

you need to post up some exapmles with exif intact.


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CountryBoy
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May 23, 2010 22:29 |  #4

MLphoto wrote in post #10234009 (external link)
HOW?!?!!!

okay, now seriously... I noticed that when shooting with my 50mm 1.8 II when I'm trying to capture something from a distance It will not capture it sharply but rather blur everything... Today I was photographing a car show and 90% of my pictures are all blured and wouldn't focus on the car. When it does focus it's sharp but I don't know what I'm doing wrong.

I'm considering selling my 17-85 and 50mm and just buying the new sigma 17-70 II

Sounds about normal for the 50mm 1.8 :cry: !


Hi

  
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EcoRick
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May 23, 2010 22:29 as a reply to  @ Cesium's post |  #5

I'm not sure if the question is about shooting wide open or a focus issue. I'm assuming it's a focus issue. To make it easy, choose one shot, select a focus point, focus on the spot you want in focus, and open up the lens beyond 1.8 (I'm assuming you're shooting in AV mode). When you take the shot, I'm pretty sure you'll get the spot you want in focus. It's a different technique if you're trying to focus on a moving target. You may want to review the instruction manual on focus techniques.


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Flores
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May 23, 2010 22:35 |  #6

DOF issue?




  
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MLphoto
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May 23, 2010 22:35 |  #7

Yes too much DOF^

I'm shooting in AF mode at F1.8, I except it to focus on the subject and blur the background (that's what I try to mainly acheive when using this lens) but I guess that isn't working out.


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tkbslc
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May 23, 2010 22:38 |  #8

A car is a pretty big subject for the thin DOF at f1.8.


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krb
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May 23, 2010 22:44 |  #9

sample pics would go a long way towards helping the forum help you.


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TheBurningCrown
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May 23, 2010 22:51 |  #10

MLphoto wrote in post #10234082 (external link)
Yes too much DOF^

Wrong. Too little.

MLphoto wrote in post #10234082 (external link)
I'm shooting in AF mode at F1.8, I except it to focus on the subject and blur the background (that's what I try to mainly acheive when using this lens) but I guess that isn't working out.

As everyone has said, a car is a pretty big subject for a very small depth of field....

Examples would help tremendously.


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Snydremark
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May 23, 2010 23:00 as a reply to  @ TheBurningCrown's post |  #11

Examples, please. But my guess is that you're using a slow focusing lens, at a significant distance, to shoot moving subjects that are hard enough to track with a fast focusing lens; and on top of that you actually have to have good form and technique to properly pan with cars.

Basically, you're trying to do something quite complicated and the 50 1.8 really isn't a great lens for.


- Eric S.: My Birds/Wildlife (external link) (7D MkII/5D IV, Canon 10-22 f/3.5-4.5, Canon 24-105L f/4 IS, Canon 70-200L f/2.8 IS MkII, Canon 100-400L f/4.5-5.6 IS I/II)
"The easiest way to improve your photos is to adjust the loose nut between the shutter release and the ground."

  
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MLphoto
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May 23, 2010 23:13 |  #12

here are some random photos from today to show you an example,

full resoltuon straight from the camera:
http://img203.imagesha​ck.us/gal.php?g=img406​0rc.jpg (external link)

so basically this isn't exactly the best lens for what I'm shooting mounted on a 1.6 crop body?
maybe something like a 35mm would be better.


http://flickr.com/marc​el-lech-photography (external link)

  
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Down_Shift
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May 23, 2010 23:16 |  #13

50mm wide open on a car is only going to get probably the headlight in focus lol.

I still have trouble using my 50mm 1.4 on cars and such. Focal length doesn't speak to me.

Try shooting at ~F11 if you're out at a car show. Sweet 16 even..




  
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DreDaze
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May 23, 2010 23:23 |  #14

don't use AI focus...

use one shot if it's not moving...and AI servo if it is moving


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Snydremark
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May 23, 2010 23:23 |  #15

MLphoto wrote in post #10234213 (external link)
here are some random photos from today to show you an example,

full resoltuon straight from the camera:
http://img203.imagesha​ck.us/gal.php?g=img406​0rc.jpg (external link)

so basically this isn't exactly the best lens for what I'm shooting mounted on a 1.6 crop body?
maybe something like a 35mm would be better.

If you're shooting stills like that it should be fine; but you've GOT to decrease your aperture size to increase yor depth of field. Try around f/8.0 to f/11 if you want to get the cars in focus.


- Eric S.: My Birds/Wildlife (external link) (7D MkII/5D IV, Canon 10-22 f/3.5-4.5, Canon 24-105L f/4 IS, Canon 70-200L f/2.8 IS MkII, Canon 100-400L f/4.5-5.6 IS I/II)
"The easiest way to improve your photos is to adjust the loose nut between the shutter release and the ground."

  
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