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Author Topic: Canon EF 400mm f/4 DO IS II USM  (Read 71196 times)

candc

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Re: Canon EF 400mm f/4 DO IS II USM
« Reply #30 on: August 15, 2015, 10:03:45 PM »
I finally got my cash together to get my order in for one.  I have been using the Sigma 150-600C.  It's great value, but I find I want to stop down to f8 to get any decent sharpness, and then if I crop ..... well let's just say it's a great $1000 lens for the range.

Anyway, I have a 7D and 5DIII and was hoping to use this with the 7D mostly, but I guess I'll have to see how that works out and whether I'll also end up needing to get a 7DII.  I guess if the IQ with a x2 is not that great, the f8 on the 7DII might not be all that useful.  Maybe it will be good enough for me for perched birds.

I'm not getting a 1Dx.  But if I'm spending $7k on a lens, what's another $1500 on a camera, right?
.

I tried it with the 2xiii and the sigma tc-2001. Iq and af was better with the sigma but I still wasn't happy with it. Maybe it would be ok on ff but it seems to be stretching it to far on the 7dii.

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Re: Canon EF 400mm f/4 DO IS II USM
« Reply #30 on: August 15, 2015, 10:03:45 PM »

wopbv4

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Re: Canon EF 400mm f/4 DO IS II USM
« Reply #31 on: August 16, 2015, 05:57:23 AM »
The 2X II extender does reduce IQ, the image looks flatter and looses contrast. However, if there is enough light, let's say iso 1600 or less, this can easily be corrected in ACR or lightroom.
Biggest issue for me is focussing speed (uhh, slowness?) with 2X, even on the 1DX, I am disappointed.
For those who have a 70-200 F2.8 II, the reduction in focus speed for the 2X is comparable.
I have attached two files, which were taken in relatively low light, iso 10,000 for the second one (2X).
I pushed both images a fair bit in ACR
1DX, 7D and lots of gear

AlanF

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Re: Canon EF 400mm f/4 DO IS II USM
« Reply #32 on: August 16, 2015, 10:28:49 AM »
I finally got my cash together to get my order in for one.  I have been using the Sigma 150-600C.  It's great value, but I find I want to stop down to f8 to get any decent sharpness, and then if I crop ..... well let's just say it's a great $1000 lens for the range.

Anyway, I have a 7D and 5DIII and was hoping to use this with the 7D mostly, but I guess I'll have to see how that works out and whether I'll also end up needing to get a 7DII.  I guess if the IQ with a x2 is not that great, the f8 on the 7DII might not be all that useful.  Maybe it will be good enough for me for perched birds.

I'm not getting a 1Dx.  But if I'm spending $7k on a lens, what's another $1500 on a camera, right?
.

I tried it with the 2xiii and the sigma tc-2001. Iq and af was better with the sigma but I still wasn't happy with it. Maybe it would be ok on ff but it seems to be stretching it to far on the 7dii.

The 2xTCIII isn't good even with the 300/2.8 II on the 7DII. My 100-400 II with a 1.4xTCIII is hardly worse than the 300 at 600mm. But, the 300/2.8 II at 600mm on the 5DIII is excellent. TDP shows the weakness on the 7DII most obviously - it put me off the the 400 DO II.

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=739&Camera=963&Sample=0&FLI=2&API=2&LensComp=962&CameraComp=963&SampleComp=0&FLIComp=2&APIComp=0

The 7D is hopeless focussing with the 300/2.8 II + 2xTC.

After much yearning for the 400 DO II, I have decided to stick with the 100-400 II - the lighter weight and zoom for me outweigh the IQ advantage and ability to have 560mm at f/5.6 for the 400 II, though it clearly is a fantastic lens.

« Last Edit: August 16, 2015, 10:39:08 AM by AlanF »
5D IV, 5DS R, 400mm DO II, 1.4xTC III, 2xTC III, EF 1.8 STM,  EF 24-105, 100-400 II, EF-S 15-85, Sigma 150-600mm C, EOS-M5 15-45, f/2 22, 11-22, Samyang 8mm f/2.8 fisheye: sold 7D II, EOS-M, Powershot G3 X,  Sigma 10-20, EF 300/2.8 II, 70-200/4 IS.

gwilson

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Re: Canon EF 400mm f/4 DO IS II USM
« Reply #33 on: August 16, 2015, 01:37:15 PM »
400DO II with a 2X III extender on a 6D:
Before this I had not even tried the 2X III on the lens. Without af at f8 I hadn't bothered to try it. I did read how to use manual focus with live view so I planned to try it if and when I get a static situation where I can use a tripod.
This was shot close to MFD at f8, 1/160, ISO400 with flash.
Gary

100% crop:



candc

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Re: Canon EF 400mm f/4 DO IS II USM
« Reply #34 on: August 16, 2015, 03:18:38 PM »
hi alan,

i don't think these lenses will sell to 300ii owners. especially not if they have a 100-400ii also.

i have the sigma 120-300s and like it a lot but its heavy for extended handheld bif and the 420 f/4 performance is marginal on bif. for me the 400doii is a good fit for what i want which is  good performance at 400 f/4 and 560 f/5.6 for handheld bif

the lens doesn't have very close mfd so you don't get much magnification with the bare lens. the 2x tc's seem good to improve on that.

the frog is with the 2xiii and the grasshopper is the sigma tc-2001 shot with a 7dii
« Last Edit: August 16, 2015, 06:19:04 PM by candc »

ejenner

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Re: Canon EF 400mm f/4 DO IS II USM
« Reply #35 on: August 16, 2015, 09:33:01 PM »
Those look pretty good to me.  Looking at TDP it looks like the 400 DO with x2 @f8 will be on par with the 70-200 II with a x2 @f5.6.  Maybe not what some might hope from a $7k lens, but if this is indeed the case, it would be about what I'd hope for.  I wouldn't expect to do BIF with it either.   

I figured out quickly when investigating 'big whites'  though that using a x2 TC is really not something you want to have to do on any regular basis.  Is seems that getting a lens to use primarily with a x2 TC is not a great idea (if not for IQ, then definitely for AF).  If I thought I was going to need to use a x2 on the DO a lot, I'd probably suck it up and get a 500 f4 to use with a 1.4.  Both size and weight of the DO really appeal to me though - I will be hiking with it.

Interesting that the sigma x2 gives better IQ than the canon.  I have a x2TCvII , but may upgrade to the sig if it is better with the DO.  The x2 I have is really 'emergency' use with my 135 and 70-200f4 IS, so I'd be looking to get whatever works best with the DO, again though more for a 'better than nothing', that something I'd expect to use much.

candc

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Re: Canon EF 400mm f/4 DO IS II USM
« Reply #36 on: August 16, 2015, 10:22:14 PM »
I've used the tc-2001 on the 400doii, 600ii, and 120-300s. The af is faster and more positive than with the 2xiii. To my eye its a bit sharper and has less ca . It does however have a tendency to disturb the bokeh more so than the canon.

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Re: Canon EF 400mm f/4 DO IS II USM
« Reply #36 on: August 16, 2015, 10:22:14 PM »

ejenner

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Re: Canon EF 400mm f/4 DO IS II USM
« Reply #37 on: August 16, 2015, 10:48:15 PM »
I've used the tc-2001 on the 400doii, 600ii, and 120-300s. The af is faster and more positive than with the 2xiii. To my eye its a bit sharper and has less ca . It does however have a tendency to disturb the bokeh more so than the canon.

OK, thanks for that info.  Have you tried, or know about the new sigma 1,4 TC?

candc

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Re: Canon EF 400mm f/4 DO IS II USM
« Reply #38 on: August 16, 2015, 11:04:03 PM »
I have that one also. As far as I can tell its about equal to the 1.4xiii

AlanF

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Re: Canon EF 400mm f/4 DO IS II USM
« Reply #39 on: August 17, 2015, 06:14:46 AM »
Objektivtest.se has measured the effects on MTF of both the 1.4x and 2x TC III (based on the 300mm f/2.8 II). The 1.4x decreases 20 and 30 lp/mm by ~ 10 and 20%, respectively, which means only a minimal loss of contrast and resolution on FF and a not very noticeable loss of contrast on APS-C for a sharp lens. The 2x loses ~20 and 40% respectively, which means a not very noticeable loss of contrast on FF but a noticeable loss of resolution. On APS-C, however, there is significant degradation of both.

In practice, as the 2xTC magnifies the image two fold, the 2xTC gives a significant increase in resolution over the bare lens, but more so for FF than for the APS-C.

http://www.objektivtest.se/
5D IV, 5DS R, 400mm DO II, 1.4xTC III, 2xTC III, EF 1.8 STM,  EF 24-105, 100-400 II, EF-S 15-85, Sigma 150-600mm C, EOS-M5 15-45, f/2 22, 11-22, Samyang 8mm f/2.8 fisheye: sold 7D II, EOS-M, Powershot G3 X,  Sigma 10-20, EF 300/2.8 II, 70-200/4 IS.

candc

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Re: Canon EF 400mm f/4 DO IS II USM
« Reply #40 on: August 18, 2015, 09:59:44 PM »
i did some more testing with the 2xiii and tc-2001. i now think the iq is quite good. especially considering it's a 2xtc on a crop body. the canon looks to have a bit more contrast. the exposure is slightly different, i was using auto iso and its 100 on the canon and 125 on the sigma

standard dxo conversion. there is a module for 7dii + 400doii + 1.4xiii or 2xiii combo which is nice. dxo  recognizes and processes  the tc-2001 as if it is the 2xiii

BeenThere

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Re: Canon EF 400mm f/4 DO IS II USM
« Reply #41 on: August 19, 2015, 02:44:42 PM »
I've started writing my thoughts about using the 400mm DO II for BIF shooting.  No real firm conclusions yet. That will have to wait for a lot more shooting experience. It is pretty amazing on a 7DII with 1.4 x III in terms of the shear magnification that can be had hand held. Also included some food for thought on just how hard it is for a camera to AF accurately with BIF shots.

http://www.ronbrunsvold.com/tools/canon-400mm-f4-do-ii-lens.html

candc

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Re: Canon EF 400mm f/4 DO IS II USM
« Reply #42 on: August 24, 2015, 09:14:37 AM »
very good article on the lens ron. i haven't had the chance to use the lens on bif much myself yet. that's the main reason i got it but i can say the iq seems excellent on red squirrels eating white pine cones.

7dii + 1.4xiii f/5.6 125s, iso500

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Re: Canon EF 400mm f/4 DO IS II USM
« Reply #42 on: August 24, 2015, 09:14:37 AM »

candc

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Re: Canon EF 400mm f/4 DO IS II USM
« Reply #43 on: August 25, 2015, 09:32:26 PM »
i suppose this thread is going to be slow considering the sparse population of this lens in the wild.

white breasted nuthatch.

7dii + 1.4xiii f/8 1/90s iso1000

« Last Edit: August 25, 2015, 09:42:12 PM by candc »

Click

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Re: Canon EF 400mm f/4 DO IS II USM
« Reply #44 on: August 26, 2015, 06:17:48 AM »
I really like your picture, candc. I love this little bird. Nicely done.

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Re: Canon EF 400mm f/4 DO IS II USM
« Reply #44 on: August 26, 2015, 06:17:48 AM »