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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 17 Dec 2014 (Wednesday) 10:12
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EF 100-400mm f/4.5-5.6L IS II USM Review WOW!

 
KainguLodge
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Oct 16, 2015 08:00 |  #2101

For my use (1.4xII) I have found the following:
- Wide open at f8 image quality seems variable, sometimes focus is nailed other times it seems a bit soft. I have not MFA'd the lens nor the combo, so I really have to get round to that to draw more conclusions
- F10 or so onwards I have no issues at all with sharpness.
- But as 99% of my photography is wildlife fairly close to sunrise and sunset then it becomes an ISO and SS juggling act.
- centre point only (1D MK IV) gets a bit limiting
- AF speed takes a slight hit, but focus racking or hunting gets a lot worse - esp in lower light. Use on BIFs seems to also suffer, I guess because of the lack of expansion points to help focus.

One shot AF in good light at a higher f-stop the combo is stunning. 'Real life' stuff for me realistically means heavy cropping is probably more effective as I am almost always in AI servo and wanting more light. If I can figure out the intricacies of MFA that might all change....

I have to say that I am much, much happier with the ISO capability of the 1dMK IV than my old 7D.


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Going even further off the topic of teleconvertors, there are times when I realise why (despite not getting the same amount of keepers as the 100-400) my Sigma 120-300 f2.8 OS is a winner. It sometimes feels quite frustrating compared to the 100-400, but that aperture........


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digital ­ paradise
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Post edited over 6 years ago by digital paradise. (3 edits in all)
     
Oct 16, 2015 08:29 |  #2102

I could tell right away it was out. It wasn't bad but enough to notice it was not as crisp as it should be. If you are getting a hit and miss at f8 and it is better at f10 it might be on the edge. I checked the online DOF calculator at 600mm and it is pretty fine line between f8 and f10. I'd be curious about your findings. I know Archibald has to MFA his at +12.

I used it for BIF a few times successfully but like you said AF speed takes a hit. More than that I lose all the great AF options it has to offer so I mostly use it for stills. I can crop so much with the 7D2 the little IQ loss I get instead if using the TC is not that noticeable in the real world.

I realize this is not the best way to do this and I have FoCal and used Dot Tune but here is the difference between 0 and +14. It is just a quick visual reference.

The AF point was on the black 1F/12 marker.

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AnnieMacD
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Oct 16, 2015 08:29 |  #2103

bidkev wrote in post #17747082 (external link)
It's a prop from a Monty Python sketch :-)

Yes, I knew you would get the inference!


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digital ­ paradise
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Oct 16, 2015 08:32 |  #2104

AnnieMacD wrote in post #17747724 (external link)
Yes, I knew you would get the inference!

It's not dead, it's pining for the fjords.


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Oct 16, 2015 08:46 |  #2105

it is amazing how many Canon lenses, 'according to the DOT Tune method', are front focusing and need + adjustments.

I throw that out there because either it is deliberate by Canon or something else is going on (most of mine are as well).

Moreover, if you actually care about not wasting DoF in front of the center point of DoF, then you may want to rearward adjust all your lenses anyway.


Hockey and wedding photographer. Favourite camera / lens combos: a 1DX II with a Tamron 45 1.8 VC, an A7Rii with a Canon 24-70F2.8L II, and a 5DSR with a Tamron 85 1.8 VC. Every lens I own I strongly recommend [Canon (35Lii, 100L Macro, 24-70F2.8ii, 70-200F2.8ii, 100-400Lii), Tamron (45 1.8, 85 1.8), Sigma 24-105]. If there are better lenses out there let me know because I haven't found them.

  
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digital ­ paradise
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Oct 16, 2015 09:05 |  #2106

Good point. It is supposed to be ⅓, ⅔ but everyone centres it. If not dead on it is usually +1 to +5. I seldom see it in the - area.


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Oct 16, 2015 09:30 |  #2107

nardes wrote in post #17744827 (external link)
Wow – that’s a lot of birds! I have found that using a flash increases my keeper rate with these fast moving birds. I use the HSS mode so I can retain a shutter speed of 1/1600 as ISO800 on the 5D Mk III.

Cheers

Dennis

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Just super captures, well done!


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Oct 16, 2015 09:31 |  #2108

That second shot is unbelievable. Great work.


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Ireland in Word and Image (external link) Jay Ben Images (external link)5D IV | 5DS/R | Powershot S100 | 24-105L | 100-400 IIL | 16-35 f/2.8 IIL | 24 T/S f /3.5L II | 17 T/S f/4L | 50mm f/1.2L | 35mm f/1.4L | 70-200 f/2.8L II | 580 EX II | 600 EX-RT | Feisol 3441T/Markins Q3T lever QR | Gitzo 3542L Markins Qi20 BV-22 | Gitzo 5561T RRS MH-02

  
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Oct 16, 2015 09:43 |  #2109

DaveCurtis wrote in post #17747594 (external link)
I was wondering how the 1.4x Mark II extender affected the image quality of the 100-400 MkII so I took a couple of images of the same Woodpigeon and created this composite.

It looks as though the 1.4x has minimal negative effect on the image and that the 400mm and 560mm images can be blown up to give very similar images. I'm now in a bit of a quandary trying to decide when the use of the 1.4x would give me a better image. Does anyone have any real world experience of when the extender is useful.

I found the IQ hit to be very minimal - I use the lens with the 7DII and the TC1.4x II. What suffers is the AF. Trying to focus on a bird perching on a branch is a snap with a naked lens, but it really hunts with the TC, particularly in not so good light.




  
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Oct 16, 2015 09:59 |  #2110

Lbsimon wrote in post #17747823 (external link)
I found the IQ hit to be very minimal - I use the lens with the 7DII and the TC1.4x II. What suffers is the AF. Trying to focus on a bird perching on a branch is a snap with a naked lens, but it really hunts with the TC, particularly in not so good light.

The +14 is not effecting my IQ. The hit is still minimal.


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Oct 16, 2015 14:48 |  #2111

I love this lens, so here goes, my second ever picture post to POTN.... Please be nice


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Oct 16, 2015 15:08 |  #2112

Looks great. I'm loving the color! Would like to see one with the head up?


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Oct 16, 2015 15:15 |  #2113

CyberDyneSystems wrote in post #17748192 (external link)
Looks great. I'm loving the color! Would like to see one with the head up?

Thanks so much, believe it or not, that blue coloring in the water is actually the reflection of a port-o-pot in the back! LOL

OK, a "head up" shot for ya


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Oct 16, 2015 15:21 as a reply to  @ hornrocker's post |  #2114

nice composition, the colors are very effective.




  
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Oct 16, 2015 15:27 |  #2115

daleg wrote in post #17748210 (external link)
nice composition, the colors are very effective.


Thanks, It's gotta be the lens :-)



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EF 100-400mm f/4.5-5.6L IS II USM Review WOW!
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