May 30, 2015, 04:56:43 AM

Author Topic: Canon EF 100-400mm f/4.5-5.6L IS II USM  (Read 16968 times)

Click

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Re: Canon EF 100-400mm f/4.5-5.6L IS II USM
« Reply #90 on: May 25, 2015, 06:08:10 AM »
A couple of recent shots with the new 100-400 with Kenko 1.4 DGX teleconverter on 1DIV.  I'm very happy with the lens, having used the version 1 for about 8 years before moving to the sigma 120-300 about a year ago.  Using teleconverters 1.4 and 2x on each it is hard to see the difference in detail but the weight difference is huge so I'm using the Sigma only when I need the extra light gather capabilities.



Very nice pictures, stochasticmotions. Well done.

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Re: Canon EF 100-400mm f/4.5-5.6L IS II USM
« Reply #90 on: May 25, 2015, 06:08:10 AM »

Eldar

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Re: Canon EF 100-400mm f/4.5-5.6L IS II USM
« Reply #91 on: May 25, 2015, 08:22:05 AM »
I bought the 100-400 to be a light weight alternative with my (wife´s) 7DII. I have not had time to use it much, but took it out today. In general it is a very handy combo. Very small and light and with the crop factor I get good reach. I have a nagging feeling about the AF consistency on the 7DII though. Need more time to test it. Up until now it´s been good, but I missed more than I should today.

This is a one-day old Great Crested Grebe, resting on his mother´s back. There are still 3 eggs in the nest. Will have to check before work tomorrow morning :)

Constantly learning, with more equipment than skills.

Eldar

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Re: Canon EF 100-400mm f/4.5-5.6L IS II USM
« Reply #92 on: May 25, 2015, 02:02:19 PM »
Here´s another shot with the 7DII/100-400 combo.
1/1250s, f7.1, ISO1000, with CPL.
Constantly learning, with more equipment than skills.

serendipidy

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Re: Canon EF 100-400mm f/4.5-5.6L IS II USM
« Reply #93 on: May 25, 2015, 04:50:59 PM »
A couple of recent shots with the new 100-400 with Kenko 1.4 DGX teleconverter on 1DIV.  I'm very happy with the lens, having used the version 1 for about 8 years before moving to the sigma 120-300 about a year ago.  Using teleconverters 1.4 and 2x on each it is hard to see the difference in detail but the weight difference is huge so I'm using the Sigma only when I need the extra light gather capabilities.

Sing your little heart out by Barry Scully, on Flickr

Juicy by Barry Scully, on Flickr

Great Blue Heron by Barry Scully, on Flickr

Fantastic series. Great job!
EOS 5D miii, EOS 7D, 70-200mm f/2.8L IS ii, 100-400mmL IS

serendipidy

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Re: Canon EF 100-400mm f/4.5-5.6L IS II USM
« Reply #94 on: May 25, 2015, 04:52:22 PM »
Here´s another shot with the 7DII/100-400 combo.
1/1250s, f7.1, ISO1000, with CPL.

Eldar, I really like this shot. The baby grebe is nice also. :)
EOS 5D miii, EOS 7D, 70-200mm f/2.8L IS ii, 100-400mmL IS

K-amps

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Re: Canon EF 100-400mm f/4.5-5.6L IS II USM
« Reply #95 on: May 26, 2015, 09:02:05 AM »

It Takes mk.iii TC's very well. Here is a shot with a 2x TC mk.iii attached to a Sony a6000 crop body via a Fotodiox adapter I took yesterday for an effective FoV of 1200mm. But given the density of the crop sensor, the reach is closer to 1600mm on a 5d3 type body.

Wonderful shot, great sharpness @ that FoV, though i didn't get the math, does the Fotodiox adapter has a crop to it?

Thanks!

Sony's have a crop of 1.5 not 1.6. so FoV is 800x 1.5 = 1200mm.

The reach was just an estimate, based on the ability to throw more pixels per square inch... I forget how I did the math for that. Let me try again:

Density of 5d3 sensor 2.58 mp per sq cm, Density of a6000 6.65 mp per sq cm. So the a6000 can throw 2.58x more pixels per sq cm than the 5d3. Less the 1.5x crop equals about 1.72x more reach (not FoV) so 1.72 x 800mm = 1372mm in other words, a 1372mm lens mounted on a 5d3, will yield similar magnification/ resolution as a 800mm mounted on a a6000.

People like me sometimes use the FoV (crop factor) interchangeably with reach (ability to crop without losing detail) , but I think they are different... as you can see one yields an equivalent of 1200mm, the other 1372mm (assuming my math was good). In other words, if the a6000 sensor density is scaled to Full frame, it would be a 62.6 mp sensor (interestingly the new Sony A9/ A7rii is rumored to be 59 mp).

So in post you can crop much deeper with a 62mp sensor than 22mp... this is what the a6000 does with out needing to crop more. Ofcourse... it's much more noisier at higher iso's.... quite noisy :-)


« Last Edit: May 27, 2015, 01:15:12 AM by K-amps »
EOS-5D Mk.iii 
∑ 12-24mm; ∑ 24-105mm F4 A; EF 70-200 F/2.8L Mk.II; EF 100-400mm L Mk.II; EF 85mm L F/1.2 Mk. II; EF 100mm L F/2.8 IS Macro,  TC's 2x ; 1.4x Mk.iii

Eldar

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Re: Canon EF 100-400mm f/4.5-5.6L IS II USM
« Reply #96 on: May 26, 2015, 03:52:02 PM »
More from 7DII + 100-400 II.
Constantly learning, with more equipment than skills.

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Re: Canon EF 100-400mm f/4.5-5.6L IS II USM
« Reply #96 on: May 26, 2015, 03:52:02 PM »

GMCPhotographics

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Re: Canon EF 100-400mm f/4.5-5.6L IS II USM
« Reply #97 on: May 28, 2015, 06:34:28 AM »
Has anyone else broken their tripod foot yet? I have a friend who's been using theirs exclusively on a tripod and it's broken after 7 weeks of use...lol...

Eldar

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Re: Canon EF 100-400mm f/4.5-5.6L IS II USM
« Reply #98 on: May 28, 2015, 09:59:52 AM »
Has anyone else broken their tripod foot yet? I have a friend who's been using theirs exclusively on a tripod and it's broken after 7 weeks of use...lol...
I bought it for a light handheld lens, so I have not yet had it on a tripod.
Constantly learning, with more equipment than skills.

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Re: Canon EF 100-400mm f/4.5-5.6L IS II USM
« Reply #98 on: May 28, 2015, 09:59:52 AM »