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Archive 2014 · … IMHO … 100-400L IS II …

  
 
Jefferson
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p.1 #1 · p.1 #1 · … IMHO … 100-400L IS II …


… Doesn’t pump dust …
… Sharp (it would embarrass Canon if it were not, I’m bett’n it’s sharp …
… Fast to focus and range selector …
… Color and Saturation excellent …
… Weather Sealed …
… Has a Red Ring (shows you care enough to own the very best) …
… White paint for use in Hot sun …
… Doesn’t look like it used Viagra when it “zooms” …
… Doesn’t pump dust …

IMHO ...
Jefferson ...



Nov 20, 2014 at 10:07 PM
howard
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p.1 #2 · p.1 #2 · … IMHO … 100-400L IS II …


If only opinions can make photographs ....


Nov 20, 2014 at 10:25 PM
EB-1
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p.1 #3 · p.1 #3 · … IMHO … 100-400L IS II …


Has anyone put the 100-400 on an optical bench and actually tested it?

EBH



Nov 20, 2014 at 10:26 PM
Photonadave
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p.1 #4 · p.1 #4 · … IMHO … 100-400L IS II …


In lieu of anyone actually having one of these lenses to take actual pictures out there in the real world with I guess a bench test is all we can hope for at this time! We'll just have to be patient & wait!


Nov 21, 2014 at 12:09 AM
Roland W
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p.1 #5 · p.1 #5 · … IMHO … 100-400L IS II …


So, your primary point mentioning the new version II not being a "dust pump" is basically wrong. And your mention of the look of the lens when zoomed to the telephoto end is also wrong. The new 100-400 L IS II lens has a front that extends dramatically as you zoom, and has the same or a very similar overall volume change as the old version I lens. It also needs seals around the extending front for some moisture resistance. And, the description has no mention of it being any different in the location and type of those seals that help keep moisture out. The net result of that is that the new version II lens likely is exactly the same as the old version I lens in terms of any tendency to suck in more dust than other lenses. So no more or less a "dust pump".

In general, the old version I lens did not really have much if any different tendency for collecting internal dust than other extending zoom lenses. There is no question that in theory, a non extending lens that has no front opening gap for dust ingress, or has a front protective filter covering the front opening gap, will likely have less tendency to get dust in side than an extending lens. But, there are plenty of extending zooms other than the 100-400 that change overall volume, and so should all of those be called "dust pumps"? Is my very nice 70-300 L IS zoom with a rotary zoom and an extending front a dust pump?




Nov 21, 2014 at 02:49 AM
jj_glos
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p.1 #6 · p.1 #6 · … IMHO … 100-400L IS II …


I always equated dust pump with the way some used the push/pull to the max, hence "pump". A zoom ring is more relaxed in use.


Nov 21, 2014 at 04:15 AM
Emile Gregoire
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p.1 #7 · p.1 #7 · … IMHO … 100-400L IS II …


Your list equally applies to the 100-400 MkI. I have an excellent copy that I have no intention whatsoever of trading in for a new one. I fail to see how it can be improved upon. YMMV.


Nov 21, 2014 at 05:16 AM
John_T
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p.1 #8 · p.1 #8 · … IMHO … 100-400L IS II …


...yeah, but I'm thinking the new 4-stop IS, coatings and CPU are going to account for a lot, particularly for crop bodies like the 7D2.


Nov 21, 2014 at 05:34 AM
dehowie
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p.1 #9 · p.1 #9 · … IMHO … 100-400L IS II …


jj_glos wrote:
I always equated dust pump with the way some used the push/pull to the max, hence "pump". A zoom ring is more relaxed in use.


Only problem is if you rapidly need to zoom from a short to full focal length your hand is now in the completely wrong position to support the weight of the lens.
This is the 200-400's biggest issue supporting a heavy lens and zooming is awkward at best when hand holding.
Always loved the push pull as your hand was always in the right place to support the lens.
I am sure it will be a lovely lens but the ability to rapidly zoom was a great feature of the original and be missed on the new one.



Nov 21, 2014 at 06:45 AM
PetKal
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p.1 #10 · p.1 #10 · … IMHO … 100-400L IS II …


Jefferson wrote:
… Doesn’t pump dust …
… Sharp (it would embarrass Canon if it were not, I’m bett’n it’s sharp …
… Fast to focus and range selector …
… Color and Saturation excellent …
… Weather Sealed …
… Has a Red Ring (shows you care enough to own the very best) …
… White paint for use in Hot sun …
… Doesn’t look like it used Viagra when it “zooms” …
… Doesn’t pump dust …

IMHO ...
Jefferson ...


That's all I need to know, thank you Jefferson. The FM Canon gear forum does it again: the first internet site to publish a practical 100-400 II review.



Nov 21, 2014 at 06:52 AM
Jefferson
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p.1 #11 · p.1 #11 · … IMHO … 100-400L IS II …


Roland W wrote:
So, your primary point mentioning the new version II not being a "dust pump" is basically wrong. And your mention of the look of the lens when zoomed to the telephoto end is also wrong. The new 100-400 L IS II lens has a front that extends dramatically as you zoom, and has the same or a very similar overall volume change as the old version I lens. It also needs seals around the extending front for some moisture resistance. And, the description has no mention of it being any different in the location and type of those seals
...Show more


… That’s a horrible revelation requiring new evaluation … Just saw a photo in the extended … Zoomed … position.

Seems Canon has attempted to solve the “dust pump” phenomenon by slowing the ability of the newly designed lens to suck dust … and I would assume the “rotational zoom design”, in addition to slowing the “zoom” rate, works like some vacuum cleaner designs I’ve seen … using the “Tornado” air flow (Rotational Zoom), to centrifugally remove dust from the inrush of particulate laden atmosphere, albeit a slower rate …

Jefferson …




Nov 21, 2014 at 10:01 AM
ggreene
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p.1 #12 · p.1 #12 · … IMHO … 100-400L IS II …


Given this:

Broken Lens Image

What kind of image degradation is really going to happen with just some dust? Seems to be much ado about nothing.



Nov 21, 2014 at 10:11 AM
Photonadave
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p.1 #13 · p.1 #13 · … IMHO … 100-400L IS II …


Wow Jefferson, if this lens can be compared to a vacuum cleaner it must really suck!


Nov 21, 2014 at 10:12 AM
Jefferson
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p.1 #14 · p.1 #14 · … IMHO … 100-400L IS II …


ggreene wrote:

What kind of image degradation is really going to happen with just some dust? Seems to be much ado about nothing.



http://jeffersonposter.smugmug.com/photos/i-gXNTx3B/0/XL/i-gXNTx3B-XL.jpg

... After several months of heavy use ... ? ..



Nov 21, 2014 at 10:30 AM
ggreene
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p.1 #15 · p.1 #15 · … IMHO … 100-400L IS II …


Wow, is that a photo with the lens or the conditions you were shooting in? Glad I don't have to deal with that kind of low visibility. Looks like a sand storm.


Nov 21, 2014 at 11:45 AM
PetKal
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p.1 #16 · p.1 #16 · … IMHO … 100-400L IS II …


Jefferson wrote:
... After several months of heavy use ... ? ..


....so much sand accumulates inside the lens that one even begins to see camels.



Nov 21, 2014 at 12:21 PM
Kathy White
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p.1 #17 · p.1 #17 · … IMHO … 100-400L IS II …


I know this thread is just for fun, but for the record, my first copy was a 2006 model and I used it alot as did the first owner. At the time I sold it in about 2013, there was some dust inside of it but it was very minimal. Not alot more than was in my other, non dust pumping lenses and if you factor in how much older it was than most of them then it was even less of a factor. IMHO calling it a dust pumper is just a bunch of crap.


Nov 21, 2014 at 12:30 PM
PetKal
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p.1 #18 · p.1 #18 · … IMHO … 100-400L IS II …


Kathy White wrote:
IMHO calling it a dust pumper is just a bunch of crap.


Yes, you tell him, Kathy.
That old boy Jefferson must have gone heavy into moonshine tasting these days, and I betcha he has never even owned 100-400 MkI.



Nov 21, 2014 at 12:43 PM
BluesWest
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p.1 #19 · p.1 #19 · … IMHO … 100-400L IS II …


...must have gone heavy into moonshine tasting these days...
No, just another person starting a childish and useless thread on FM -- seems to be a standard these days, unfortunately.

John



Nov 21, 2014 at 01:12 PM
Rusty1
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p.1 #20 · p.1 #20 · … IMHO … 100-400L IS II …


Jefferson I was going to say in ten years on the forum I have never seem an image affected by dust inside the lens. Touche


Nov 21, 2014 at 01:19 PM
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