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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 13 Oct 2018 (Saturday) 15:50
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Portrait lens help/suggestion

 
John ­ from ­ PA
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Oct 14, 2018 22:13 |  #16

There is a good depth of field calculator at http://www.dofmaster.c​om/dofjs.html (external link). You should give it a try to see the effects of focal length, aperture, etc.




  
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elitejp
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Post edited over 1 year ago by elitejp.
     
Oct 14, 2018 23:07 |  #17

My 2 favorite lenses are the 70-200 2.8L and the 135L on a full frame camera. Before that I really loved the 85 1.8 when i had a crop camera. Both the 135 and the 70-200 werent in my collection when I was shooting crop. For me I dont care for the 85 on ff but really liked it on the crop and now I just love the 135 which is what the 85 actually ends up being on a crop camera (85mm X1.6 crop factor=136)

So for me its really hard to decide which lens I like better for portraits the 135L or the 70-200L. For you I think either the 85 or the 70-200 that was mentioned earlier should give you pretty drastic and immediate results. The only thing is im not sure of is how much the f4 on the 70-200 will affect the background blur since I havent shot a crop camera with that focal length at f4. The 85 1.8 will definitely give you some great pics though.

Either way dont expect to be shooting much indoors with these lenses. You just dont have enough room.


6D; canon 85mm 1.8, Tamron 24-70mm VC, Canon 135L Canon 70-200L is ii

  
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firme
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Oct 14, 2018 23:08 |  #18

Thanks for the link. Is there a Camera that is similar to mine? The 80d is not listed.

DreDaze, started some testing with the Tamron. I set to 50, 35, 24 and 17. Saw more depth of field with using at 50 as with the 50mm.




  
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firme
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Oct 14, 2018 23:19 |  #19

This is with the 50mm at F4 and F6.3 Did not adjust iso but was using a speedlite 580ex with no umbrella/soft box.


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Wilt
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Post edited over 1 year ago by Wilt. (6 edits in all)
     
Oct 14, 2018 23:28 |  #20

firme wrote in post #18729034 (external link)
This is with the 50mm at F4 and F6.3 Did not adjust iso but was using a speedlite 580ex with no umbrella/soft box.

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Hosted photo: posted by firme in
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forum: Canon EF and EF-S Lenses

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Hosted photo: posted by firme in
./showthread.php?p=187​29034&i=i96087216
forum: Canon EF and EF-S Lenses

What you SHOULD have observed, when shooting with eTTL flash, is NOT a difference in the density of the recorded scene, but both shots should be equally bright...the flash should be outputting +1.33EV more light to offset the recording of -1.33EV less light due to the smaller lens aperture!
So any visible difference in the recorded scene should have merely reflected the greater DOF zone depth with f/6.3...which would be about 1.33x in depth with f/6.3 (1.33EV smaller aperture), and the background should be 'less blurry' with f/6.3


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firme
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Oct 14, 2018 23:35 |  #21

The first one is at a farther distance and place various items. No flash.


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firme
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Oct 14, 2018 23:36 |  #22

The above and these were taken with the Tamron.


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firme
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Oct 14, 2018 23:37 |  #23

The bottom did use flash.


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wyntastr
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Oct 15, 2018 11:06 |  #24

Whatever you decide, you should definitely pick up that 70-200 f4L for $300. It's so versatile. Lightweight, tack sharp, quick autofocus, nice focal range for a variety of subjects and in good light, you won't even miss the IS.
You've already got the nifty fifty, which can produce nice results for portraits, but if you can squeeze out a few more bucks, pick up a used 85mm f1.8 for under $350 and you'll have a pair of very competent primes for portraiture and other low light applications.


6D - 1D Mk III - 60D - Rokinon 8 fisheye - EF 17-40 f/4L - EF 40 f/2.8 STM - EF 50 f/1.8 Mk I - EF 85 f/1.8 - EF 70-200 f/4L - EF 80-200 f/2.8L Magic Drainpipe - EF 300mm f/2.8 IS L - EF 100-400L

  
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Tom ­ Reichner
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Oct 15, 2018 11:23 |  #25

.

firme wrote in post #18728216 (external link)
Would like to have photos where I can blur the background considerably. What type of lense would be helpful for this? I have seen online where some suggest 70mm and above. Others I have seen using up to 200mm.

.

John from PA wrote in post #18728346 (external link)
The point I was trying to make, and it is borne out by your statements, if you are primarily trying to improve your images by blurring the background, then you should do some studies of depth of field instead of spending money on a lens.

.
You are very right, John.

Lens aperture and/or focal length doesn't have nearly as much ability to blur backgrounds as the photographer does by controlling the spatial relationships between the subject and the camera vs the background elements and the camera.

When it comes to tastefully blurred backgrounds, it is all about the photographer, and hardly about the lens or aperture at all. . If someone is struggling to get blurred backgrounds at f4, then shooting at f2.8 or f1.4 or whatever isn't going to help them very much. . But learning how to position ones' self and how to position the subject is going to be a huge help, and will get you the blurred backgrounds that you want, regardless of what aperture you shoot at.

Heck, a photographer who knows what he/she is doing can get wonderfully blurred backgrounds at f11 or f16 or even f22.

So the point that I am making is for the OP not to use blurred backgrounds as a basis for deciding which lens to buy, because he doesn't need any particular lens in order to blur a background, so long as he takes control over the subject-to-camera distance and the subject-to-background distance.


.


"Your" and "you're" are different words with completely different meanings - please use the correct one.
"They're", "their", and "there" are different words with completely different meanings - please use the correct one.
"Fare" and "fair" are different words with completely different meanings - please use the correct one. The proper expression is "moot point", NOT "mute point".

  
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Wilt
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Oct 15, 2018 11:25 as a reply to  @ firme's post |  #26

I am getting puzzled with the multiple later posting of photos...what are you trying to test or illustrate?


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John ­ from ­ PA
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Oct 15, 2018 12:04 |  #27

firme wrote in post #18729028 (external link)
Thanks for the link. Is there a Camera that is similar to mine? The 80d is not listed.

DreDaze, started some testing with the Tamron. I set to 50, 35, 24 and 17. Saw more depth of field with using at 50 as with the 50mm.

If your specific camera is not listed, then select something that has the same sensor format. Your 80D is an APS-C so you could chose the 60D and be fine




  
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Tom ­ Reichner
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Oct 15, 2018 12:07 |  #28

.

Wilt wrote in post #18729396 (external link)
I am getting puzzled with the multiple later posting of photos...what are you trying to test or illustrate?

.
He was showing the difference between using flash and not using flash.
.

firme wrote in post #18729043 (external link)
The bottom did use flash.

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Hosted photo: posted by firme in
./showthread.php?p=187​29043&i=i109339243
forum: Canon EF and EF-S Lenses


.


"Your" and "you're" are different words with completely different meanings - please use the correct one.
"They're", "their", and "there" are different words with completely different meanings - please use the correct one.
"Fare" and "fair" are different words with completely different meanings - please use the correct one. The proper expression is "moot point", NOT "mute point".

  
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firme
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Oct 15, 2018 23:51 |  #29

Thanks for the help. Sure have a lot of practicing to do, that's for sure. I took some more test pictures before sun down at a further distance than from the indoor test shots. Not comparing mine with others as I'll only make it harder on myself. Just as some have said, have to get a better grasp on depth of field.

Posted pictures to demonstrate my dop and open to any critique.




  
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DreDaze
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Post edited over 1 year ago by DreDaze.
     
Oct 16, 2018 00:44 |  #30

firme wrote in post #18729028 (external link)
Thanks for the link. Is there a Camera that is similar to mine? The 80d is not listed.

DreDaze, started some testing with the Tamron. I set to 50, 35, 24 and 17. Saw more depth of field with using at 50 as with the 50mm.

more depth of field would be more in focus...so you are probably getting less...if you want blurred backgrounds, the keys are fast aperture, longer focal length, close to subject with the background farther away...place that plant on something where the background is 2 ft away, and then compare it to where the background is 10 ft away...you can do this with all of those factors...for example, shoot at f8, and then f2.8...you already did the focal length comparison

but yeah, just experiment, and you'll start to learn how to adjust what you are doing to get what you want


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Portrait lens help/suggestion
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